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Wuhan Kemi-Works Chemical Co., Ltd

Wuhan Kemiworks Chemical Co., Ltd . works on research and development, production and technical services of organic silicone chemicals & Organic fluoro chemicals, we have been specializing in the development and production of silicone &

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:1 Kilogram

Negotiable

Type:Other

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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Manufacturer/High quality/Best price/In stock

Cas:2554-06-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

TIANFUCHEM--2554-06-5--2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane in stock Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had e

TIANFUCHEM--2554-06-5--2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane in stock

Cas:2554-06-5

Min.Order:1 Metric Ton

FOB Price: $2000.0

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane CAS 2554-06-5

Cas:2554-06-5

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Best CAS 2554-06-5 with best price

Cas:2554-06-5

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

Hebei yanxi chemical co.,LTD.

1. Best quality in your requirement 2. Competitive price in China market 3. mature Technical support 4. Professional logistic support 5 . Full experience of large numbers containers loading in Chinese sea port 6 Fast shipment by reputed shipping

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:1 Kilogram

FOB Price: $17.0 / 18.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name: Tetraethenyltetramethylcycloterasiloxane Synonyms: Cyclotetrasiloxane, tetraethenyltetramethyl-; Methyl vinyl cyclotetrasiloxane; Tetramethyltetravinylcyclotetrasiloxane; 2,2,4,4-tetraethenyl-6,6,8,8

Tetraethenyltetramethylcycloterasiloxane CAS:2554-06-5

Cas:2554-06-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specializ

Cyclotetrasiloxane,2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-

Cas:2554-06-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane CAS: 2554-06-5 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, speci

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane CAS: 2554-06-5

Cas:2554-06-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Cyclotetrasiloxane,2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-

Cas:2554-06-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie

cas 2554-06-5 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

CAS NO.:2554-06-5

Cas:2554-06-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:1 Kilogram

FOB Price: $20.0 / 30.0

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

2,4,6,8-TETRAVINYL-2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE

Cas:2554-06-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

Tetravinyl tetramethyl cyelo tetrasiloxane

Cas:2554-06-5

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

superior quality moderate price& quick delivery Appearance:Colorless transparent liquid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Use

Cyclotetrasiloxane,2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-

Cas:2554-06-5

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Best Offer2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane MF: C12H24O4Si4 MW: 344.66 EINECS: 219-863-1 Mol File: 2554-06-5.mol 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Structure 2,4,6,8-Tetravinyl-2,4,6,

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane

Cas:2554-06-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

chloro-trimethyl-silane
75-77-4

chloro-trimethyl-silane

Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
3901-77-7

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

C

1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane
16522-66-0

1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane

D

1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane
16545-47-4

1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane

Conditions
ConditionsYield
With water In toluene at 20℃; for 27h; Further byproducts given;A n/a
B n/a
C 26%
D 10 % Chromat.
With water In toluene at 20℃; for 27h; Further byproducts given;A n/a
B n/a
C 26 % Chromat.
D 10%
chloro-trimethyl-silane
75-77-4

chloro-trimethyl-silane

Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
3901-77-7

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

C

1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane
16522-66-0

1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane

D

C18H42O5Si6
34372-23-1

C18H42O5Si6

Conditions
ConditionsYield
With water In toluene at 20℃; for 27h; Further byproducts given;A n/a
B n/a
C 26%
D 6 % Chromat.
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
3901-77-7

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

Conditions
ConditionsYield
With water In toluene at 20℃; for 27h;A 24%
B 19 % Chromat.
With water In toluene at 20℃; for 27h;A 26 % Chromat.
B 12%
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

Conditions
ConditionsYield
With ethanol
chloro-trimethyl-silane
75-77-4

chloro-trimethyl-silane

Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

methylbis(trimethylsilyloxy)vinylsilane
5356-85-4

methylbis(trimethylsilyloxy)vinylsilane

B

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

C

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
3901-77-7

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

D

1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane
16522-66-0

1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane

Conditions
ConditionsYield
With water In toluene at 20℃; for 27h; Further byproducts given. Yields of byproduct given;A 31 % Chromat.
B n/a
C n/a
D n/a
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane
17704-22-2

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane

C

2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane
18304-82-0

2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

D

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
3901-77-7

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

Conditions
ConditionsYield
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Further byproducts given. Yields of byproduct given;
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Yields of byproduct given;
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane
17704-22-2

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane

C

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
3901-77-7

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

Conditions
ConditionsYield
With tetrahydrofuran; lithium at 35 - 45℃; Product distribution; Mechanism;
With tetrahydrofuran; lithium at 35 - 45℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane
18304-82-0

2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

C

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
3901-77-7

1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

D

2,4,6,8,10,12,14-Heptamethyl-2,4,6,8,10,12,14-heptavinyl-1,3,5,7,9,11,13-heptaoxa-2,4,6,8,10,12,14-heptasila-cyclotetradecane
17704-23-3

2,4,6,8,10,12,14-Heptamethyl-2,4,6,8,10,12,14-heptavinyl-1,3,5,7,9,11,13-heptaoxa-2,4,6,8,10,12,14-heptasila-cyclotetradecane

Conditions
ConditionsYield
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Further byproducts given. Yields of byproduct given;
methylvinyldiethoxysilane
5507-44-8

methylvinyldiethoxysilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinyl-cyclopentasiloxane, 2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinyl-cyclopentasiloxane, 2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

Conditions
ConditionsYield
With hydrogenchloride
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

Octamethyltrisiloxane
107-51-7

Octamethyltrisiloxane

A

Hexamethyldisiloxane
107-46-0

Hexamethyldisiloxane

B

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

C

1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane
16545-47-4

1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane

D

1,1,1,3,5,5,7,7,9,9,9-undecamethyl-3-vinylpentasiloxane

1,1,1,3,5,5,7,7,9,9,9-undecamethyl-3-vinylpentasiloxane

Conditions
ConditionsYield
With dimethyl sulfoxide Heating; Further byproducts given. Title compound not separated from byproducts;
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

Octamethyltrisiloxane
107-51-7

Octamethyltrisiloxane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane
17704-22-2

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane

C

2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane
18304-82-0

2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

D

1,1,1,3,5,7,7,9,9,9-decamethyl-3,5-divinylpentasiloxane

1,1,1,3,5,7,7,9,9,9-decamethyl-3,5-divinylpentasiloxane

Conditions
ConditionsYield
With dimethyl sulfoxide at 20℃; Further byproducts given. Title compound not separated from byproducts;
Dichloromethylvinylsilane
124-70-9

Dichloromethylvinylsilane

A

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane
17704-22-2

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane

Conditions
ConditionsYield
With 18-crown-6 ether; water at 20℃; for 0.5h; Overall yield = 90.1 %;
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2,4,6,8-Tetramethyl-2,4,6,8-tetrakis-(2-trichlorosilanyl-ethyl)-[1,3,5,7,2,4,6,8]tetroxatetrasilocane
188593-65-9

2,4,6,8-Tetramethyl-2,4,6,8-tetrakis-(2-trichlorosilanyl-ethyl)-[1,3,5,7,2,4,6,8]tetroxatetrasilocane

Conditions
ConditionsYield
With trichlorosilane; platinum on activated charcoal In tetrahydrofuran for 48h;100%
With trichlorosilane; platinum on activated charcoal Addition;
With H3SiCl3; platinum on activated charcoal In tetrahydrofuran
Stage #1: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane; platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex In diethyl ether; xylene at -78℃;
Stage #2: With trichlorosilane In diethyl ether; xylene at -78 - 20℃; for 20h;
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2-bromobenzoic acid ethyl ester
6091-64-1

2-bromobenzoic acid ethyl ester

2-ethenylbenzoic acid ethyl ester
32082-32-9

2-ethenylbenzoic acid ethyl ester

Conditions
ConditionsYield
Stage #1: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With tetrabutyl ammonium fluoride; palladium(II) bromide; johnphos In tetrahydrofuran for 0.166667h; Hiyama Amino-Acrylate Synthesis; Inert atmosphere;
Stage #2: 2-bromobenzoic acid ethyl ester In tetrahydrofuran at 50℃; for 8h; Inert atmosphere;
99%
With tetrabutyl ammonium fluoride; palladium(II) bromide; johnphos In tetrahydrofuran at 50℃; for 5h;86%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2,6-diethyl-4,4-difluoro-1,3,5,7-tetramethyl-8-(4-iodophenyl)-4-bora-3a,4a-diaza-s-indacene

2,6-diethyl-4,4-difluoro-1,3,5,7-tetramethyl-8-(4-iodophenyl)-4-bora-3a,4a-diaza-s-indacene

2,6-diethyl-4,4-difluoro-8-(4-(methacryloyloxy)phenyl)-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene

2,6-diethyl-4,4-difluoro-8-(4-(methacryloyloxy)phenyl)-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride; bis(dibenzylideneacetone)-palladium(0); johnphos In tetrahydrofuran at 80℃; for 3h; Hiyama Coupling;99%
Dichloromethylsilane
75-54-7

Dichloromethylsilane

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2,4,6,8-Tetrakis-[2-(dichloro-methyl-silanyl)-ethyl]-2,4,6,8-tetramethyl-[1,3,5,7,2,4,6,8]tetroxatetrasilocane
41454-29-9

2,4,6,8-Tetrakis-[2-(dichloro-methyl-silanyl)-ethyl]-2,4,6,8-tetramethyl-[1,3,5,7,2,4,6,8]tetroxatetrasilocane

Conditions
ConditionsYield
platinum on activated charcoal for 12h; Ambient temperature;97%
platinum on activated charcoal at 20℃; for 20h; Addition;97%
10 % platinum-active carbon In tetrahydrofuran for 12h; Ambient temperature;93%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2-bromoanthracene-9,10-dione
572-83-8

2-bromoanthracene-9,10-dione

2-vinylanthracene-9,10-dione
13388-33-5

2-vinylanthracene-9,10-dione

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride; bis(dibenzylideneacetone)-palladium(0); johnphos In tetrahydrofuran at 80℃; for 8h; Hiyama Coupling;96%
With tetrabutyl ammonium fluoride; bis(dibenzylideneacetone)-palladium(0); johnphos In tetrahydrofuran at 80℃; for 8h; Inert atmosphere;96%
2,2,4,6,8-pentamethylcyclotetrasiloxane
18163-78-5

2,2,4,6,8-pentamethylcyclotetrasiloxane

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

1,1-dimethyl-3,3,3-triphenyl-3,3-1-vinyldisiloxane
1361991-02-7

1,1-dimethyl-3,3,3-triphenyl-3,3-1-vinyldisiloxane

C28H44O5Si6

C28H44O5Si6

Conditions
ConditionsYield
Stage #1: 2,2,4,6,8-pentamethylcyclotetrasiloxane; 1,1-dimethyl-3,3,3-triphenyl-3,3-1-vinyldisiloxane In toluene at 60℃; for 0.166667h;
Stage #2: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane In toluene at 80℃; for 1h;
95%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2-chloronaphthalene
91-58-7

2-chloronaphthalene

2-Vinylnaphthalene
827-54-3

2-Vinylnaphthalene

Conditions
ConditionsYield
With XPhos; tetrabutyl ammonium fluoride; palladium diacetate In tetrahydrofuran at 67℃; for 24h; Reagent/catalyst; Hiyama Coupling; Schlenk technique; Inert atmosphere;93%
dimethylmonochlorosilane
1066-35-9

dimethylmonochlorosilane

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

acetic anhydride
108-24-7

acetic anhydride

C28H64O12Si8

C28H64O12Si8

Conditions
ConditionsYield
Stage #1: dimethylmonochlorosilane; 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With dihydrogen hexachloroplatinate In isopropyl alcohol for 0.833333h; Inert atmosphere;
Stage #2: acetic anhydride at 100℃; for 12h; Inert atmosphere;
93%
3-bromoquinoline
5332-24-1

3-bromoquinoline

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

3-ethenylquinoline
67752-31-2

3-ethenylquinoline

Conditions
ConditionsYield
Stage #1: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With tetrabutyl ammonium fluoride; palladium(II) bromide; johnphos In tetrahydrofuran at 20℃; for 0.25h; Inert atmosphere;
Stage #2: 3-bromoquinoline In tetrahydrofuran at 50 - 62℃; for 2.83333h; Inert atmosphere;
91%
With tetrabutyl ammonium fluoride; palladium(II) bromide; johnphos In tetrahydrofuran at 50℃; for 3h;89%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2-nitrophenyl bromide
577-19-5

2-nitrophenyl bromide

2-nitrostyrene
579-71-5

2-nitrostyrene

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride; palladium(II) bromide; johnphos In tetrahydrofuran at 50℃; for 2h;91%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

para-bromoacetophenone
99-90-1

para-bromoacetophenone

1-(4-vinylphenyl)ethanone
10537-63-0

1-(4-vinylphenyl)ethanone

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride; palladium(II) bromide; johnphos In tetrahydrofuran at 50℃; for 4h;91%
With sodium hydroxide; 4-hydroxyacetophenone oxime-derived palladacycle In water at 120℃; for 0.166667h; microwave irradiation;21 % Spectr.
4-Cyanochlorobenzene
623-03-0

4-Cyanochlorobenzene

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2-cyano-6-vinylnaphthalene
259199-33-2

2-cyano-6-vinylnaphthalene

Conditions
ConditionsYield
With XPhos; tetrabutyl ammonium fluoride; palladium diacetate In tetrahydrofuran at 67℃; for 24h; Inert atmosphere; Schlenk technique;91%
dimethylmonochlorosilane
1066-35-9

dimethylmonochlorosilane

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

allylmagnesium bromide
2622-05-1

allylmagnesium bromide

C32H72O4Si8

C32H72O4Si8

Conditions
ConditionsYield
Stage #1: dimethylmonochlorosilane; 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex In toluene at 60℃; Inert atmosphere;
Stage #2: allylmagnesium bromide In tetrahydrofuran at 60℃; for 1.16667h; Inert atmosphere; Cooling with ice;
91%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

Diphenylphosphine oxide
4559-70-0

Diphenylphosphine oxide

[(1,3,5,7-tetramethylcyclotetrasiloxane-1,3,5,7-tetrayl)tetra-2,1-ethanediyl]tetrakis[diphenylphosphine oxide]
369615-80-5

[(1,3,5,7-tetramethylcyclotetrasiloxane-1,3,5,7-tetrayl)tetra-2,1-ethanediyl]tetrakis[diphenylphosphine oxide]

Conditions
ConditionsYield
With tributyl borane In tetrahydrofuran; acetone at 0℃; for 14h; Solvent; Temperature; Reagent/catalyst; Inert atmosphere;90%
With triethyl borane In tetrahydrofuran; hexane for 6h; Inert atmosphere;89%
rac-3-sulfanylpropane-1,2-diol
96-27-5

rac-3-sulfanylpropane-1,2-diol

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

C24H56O12S4Si4

C24H56O12S4Si4

Conditions
ConditionsYield
With 2,2-dimethoxy-2-phenylacetophenone In tetrahydrofuran at 20℃; for 2h; UV-irradiation;90%
With 2,2'-azobis(isobutyronitrile) In acetonitrile at 70℃; for 18h;85%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

4-Iodoacetophenone
13329-40-3

4-Iodoacetophenone

1-(4-vinylphenyl)ethanone
10537-63-0

1-(4-vinylphenyl)ethanone

Conditions
ConditionsYield
Stage #1: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 0.166667h;
Stage #2: 4-Iodoacetophenone; bis(dibenzylideneacetone)-palladium(0) In tetrahydrofuran at 20℃; for 0.166667h;
88%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

methyl 6-chloro-2-naphtoate
5042-96-6

methyl 6-chloro-2-naphtoate

methyl 6-vinyl-2-naphthoate
856011-08-0

methyl 6-vinyl-2-naphthoate

Conditions
ConditionsYield
With XPhos; tetrabutyl ammonium fluoride; palladium diacetate In tetrahydrofuran at 67℃; for 24h; Inert atmosphere; Schlenk technique;88%
m-iodonitrobenzene
645-00-1

m-iodonitrobenzene

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

1-nitro-3-vinyl-benzene
586-39-0

1-nitro-3-vinyl-benzene

Conditions
ConditionsYield
Stage #1: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 0.166667h;
Stage #2: m-iodonitrobenzene; bis(dibenzylideneacetone)-palladium(0) In tetrahydrofuran at 20℃; for 0.166667h;
87%
bis(1,5-cyclooctadiene)nickel (0)
1295-35-8

bis(1,5-cyclooctadiene)nickel (0)

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

triphenylphosphine
603-35-0

triphenylphosphine

[(Ni(PPh3))2(μ-(η-CH2CH(Me)Si(μ-O))4)]
306770-73-0

[(Ni(PPh3))2(μ-(η-CH2CH(Me)Si(μ-O))4)]

Conditions
ConditionsYield
In diethyl ether byproducts: 1,5-C8H12; siloxane was added to Et2O soln. of equimolar amt. of Ni-complex and phosphine at ambient temp., mixt. was stirred overnight; volatiles were removed in vac., residue was taken up in pentane, mixt. was filtered through Celite, soln. was cooled to -30 °C, recrystd. from benzene at ambient temp., elem. anal.;86%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

para-chloroacetophenone
99-91-2

para-chloroacetophenone

1-(4-vinylphenyl)ethanone
10537-63-0

1-(4-vinylphenyl)ethanone

Conditions
ConditionsYield
With XPhos; tetrabutyl ammonium fluoride; palladium diacetate In tetrahydrofuran at 67℃; for 24h; Inert atmosphere; Schlenk technique;86%
1-iodoheptadecafluorooctane
507-63-1

1-iodoheptadecafluorooctane

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

C44H24F68I4O4Si4

C44H24F68I4O4Si4

Conditions
ConditionsYield
With sodium hydrogencarbonate; sodium dithionite In water; acetonitrile for 2h; under sonification;85%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

4-iodobenzoic acid ethyl ester
51934-41-9

4-iodobenzoic acid ethyl ester

ethyl 4-vinylbenzoate
2715-43-7

ethyl 4-vinylbenzoate

Conditions
ConditionsYield
Stage #1: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 0.166667h;
Stage #2: 4-iodobenzoic acid ethyl ester; bis(dibenzylideneacetone)-palladium(0) In tetrahydrofuran at 20℃; for 0.166667h;
85%
bis(1,5-cyclooctadiene)nickel (0)
1295-35-8

bis(1,5-cyclooctadiene)nickel (0)

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

Tri(p-tolyl)phosphine
1038-95-5

Tri(p-tolyl)phosphine

[(Ni(PC6H4CH3-4))2(μ-(η-CH2CH(Me)Si(μ-O))4)]
306770-74-1

[(Ni(PC6H4CH3-4))2(μ-(η-CH2CH(Me)Si(μ-O))4)]

Conditions
ConditionsYield
In diethyl ether byproducts: 1,5-C8H12; siloxane was added to Et2O soln. of equimolar amt. of Ni-complex and phosphine at ambient temp., mixt. was stirred overnight; volatiles were removed in vac., residue was taken up in pentane, mixt. was filtered through Celite, soln. was cooled to -30 °C, elem. anal.;85%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

4-chlorobenzonitrile
100-00-5

4-chlorobenzonitrile

4-nitrostyrene
100-13-0

4-nitrostyrene

Conditions
ConditionsYield
With XPhos; tetrabutyl ammonium fluoride; palladium diacetate In tetrahydrofuran at 67℃; for 24h; Inert atmosphere; Schlenk technique;85%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2-hydroxyethanethiol
60-24-2

2-hydroxyethanethiol

C20H48O8S4Si4

C20H48O8S4Si4

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile) In acetonitrile at 70℃; for 18h;85%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

1,1-di-tert-butyl-2,3-dimethylsilirane

1,1-di-tert-butyl-2,3-dimethylsilirane

2,4,6,8-tetrakis(1,1-di-tert-butylsiliran-2-yl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

2,4,6,8-tetrakis(1,1-di-tert-butylsiliran-2-yl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

Conditions
ConditionsYield
With silver trifluoromethanesulfonate In toluene at 60℃; for 16h; Inert atmosphere; Schlenk technique;85%
octamethylcyclotetrasiloxane
556-67-2

octamethylcyclotetrasiloxane

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

2-vinyl-2,4,4,6,6-pentamethylcyclotrisiloxane
18395-32-9

2-vinyl-2,4,4,6,6-pentamethylcyclotrisiloxane

Conditions
ConditionsYield
With triphenylphosphine; potassium hydroxide at 95 - 145℃; for 2h; Temperature; Concentration; Reagent/catalyst; Autoclave;83.4%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

o-iodo-methyl-benzoic acid
610-97-9

o-iodo-methyl-benzoic acid

methyl o-vinylbenzoate
27326-44-9

methyl o-vinylbenzoate

Conditions
ConditionsYield
Stage #1: 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane With triphenyl-arsane; tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 0.166667h;
Stage #2: o-iodo-methyl-benzoic acid; bis(dibenzylideneacetone)-palladium(0) In tetrahydrofuran at 20℃; for 8h;
83%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

Ethyl 4-bromobenzoate
5798-75-4

Ethyl 4-bromobenzoate

ethyl 4-vinylbenzoate
2715-43-7

ethyl 4-vinylbenzoate

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride; palladium(II) bromide; johnphos In tetrahydrofuran at 50℃; for 5h;83%
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
2554-06-5

2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

di(p-tolyl)phosphine oxide
2409-61-2

di(p-tolyl)phosphine oxide

C68H84O8P4Si4

C68H84O8P4Si4

Conditions
ConditionsYield
With triethyl borane In tetrahydrofuran; toluene at 25℃; for 12h; Inert atmosphere;83%

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