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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

1,4-Diethynylbenzene Manufacturer/High quality/Best price/In stock

Cas:935-14-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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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

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so

935-14-8 C10H6 1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:1 Kilogram

FOB Price: $2.0 / 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

Wholesale price CAS 935-14-8 with best price

Cas:935-14-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name: 1,4-Diethynyjbenzene CAS No.: 935-14-8 Molecular Formula: C10H6 Molecular Weight: 126.15 Grade Standard: Reagent grade Appearance: Crystalline Powder Appearance:White powder Storage: Room Temperature Package: 25kg/drum or 20

1,4-Diethynylbenzene CAS: 935-14-8

Cas:935-14-8

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

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Antimex Chemical Limied

1,4-diethynylbenzene ProName: 1,4-Diethynylbenzene Manufacturer/High... CasNo: 935-14-8 Molecular Formula: C10H6 Appearance: detailed see specifications Application: It is an important raw material and in... DeliveryTime: p

1,4-Diethynylbenzene Manufacturer

Cas:935-14-8

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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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

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

1,4-Diethynylbenzene CAS:935-14-8 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic inter

1,4-Diethynylbenzene CAS:935-14-8

Cas:935-14-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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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

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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.:935-14-8

Cas:935-14-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

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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

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Shanghai Massive Chemical Technology Co., Ltd.

Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and

1,4-diethynylbenzene/High quality/Best price

Cas:935-14-8

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

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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

cas: 935-14-8

Cas:935-14-8

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

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HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality moderate price & quick delivery Appearance:White or orange-brown crystalline powder 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. Appli

Benzene, 1,4-diethynyl-

Cas:935-14-8

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

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

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

935-14-8 CAS NO.935-14-8

Cas:935-14-8

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

Type:Trading Company

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Hunan chemfish Pharmaceutical co.,Ltd

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

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

SAGECHEM LIMITED

SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in custom synthe

SAGECHEM/1,4-Diethynylbenzene/SAGECHEM/Manufacturer in China

Cas:935-14-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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

1,4-diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Golden Pharma Co., Limited

GOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Greenutra Resource Inc

1,4-DiethynylbenzeneAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Other

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec 1,4-Diethynylbenzene 25g

Cas:935-14-8

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate

1,4-Diethynylbenzene

Cas:935-14-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

1,4-Bis(trimethylsilylethynyl)benzene
17938-13-5

1,4-Bis(trimethylsilylethynyl)benzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium carbonate In methanol; dichloromethane at 20℃; for 1h;100%
With water; potassium hydroxide In methanol for 1h;100%
With potassium carbonate In methanol at 20℃;97%
para-diiodobenzene
624-38-4

para-diiodobenzene

trimethylsilylacetylene
1066-54-2

trimethylsilylacetylene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
Stage #1: para-diiodobenzene; trimethylsilylacetylene With triethylamine; copper(l) iodide; tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran Sonogahira-Hagihara coupling reaction;
Stage #2: With potassium carbonate In methanol
100%
1,4-bis(2,2-dibromoethenyl)benzene
77295-67-1

1,4-bis(2,2-dibromoethenyl)benzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃;99%
With caesium carbonate; dimethyl sulfoxide at 115℃; for 12h;95%
With Succinimide; potassium carbonate In dimethyl sulfoxide at 90℃; for 2h; Schlenk technique; Inert atmosphere;84%
1,4-bis(2-hydroxy-2-methyl-4-but-3-ynyl)benzene
2344-53-8

1,4-bis(2-hydroxy-2-methyl-4-but-3-ynyl)benzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium hydroxide In toluene for 3h; Reflux; Inert atmosphere; Darkness;98%
With sodium isopropylate In isopropyl alcohol for 4.5h; Heating;85%
With aluminum oxide; potassium hydroxide for 0.0166667h; microwave irradiation;84%
anti-3,3'-(1,4-phenylene)bis(2,3-dibromopropanoic acid)

anti-3,3'-(1,4-phenylene)bis(2,3-dibromopropanoic acid)

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide at 115℃; for 12h;98%
1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-2-((4-((trimethylsilyl)ethynyl)phenyl)ethynyl)trisilane

1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-2-((4-((trimethylsilyl)ethynyl)phenyl)ethynyl)trisilane

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran; methanol at 0℃; Inert atmosphere;97%
terephthalaldehyde,
623-27-8

terephthalaldehyde,

(dibromomethyl)(triphenyl)phosphonium bromide
56506-90-2

(dibromomethyl)(triphenyl)phosphonium bromide

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
Stage #1: terephthalaldehyde,; (dibromomethyl)(triphenyl)phosphonium bromide With potassium tert-butylate In tetrahydrofuran at 20℃; for 0.0833333h; Wittig-type condensation;
Stage #2: With potassium tert-butylate In tetrahydrofuran at -78℃; Elimination;
85%
1,1'-(1,4-phenylene)bis(3-phenylprop-2-yn-1-one)
52714-30-4

1,1'-(1,4-phenylene)bis(3-phenylprop-2-yn-1-one)

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium hydroxide; water In benzene at 80℃;83%
aqueous potassium hydroxide

aqueous potassium hydroxide

1,4-Bis(trimethylsilylethynyl)benzene
17938-13-5

1,4-Bis(trimethylsilylethynyl)benzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
In methanol; dichloromethane; water78%
1,4-Diacetylbenzene
1009-61-6

1,4-Diacetylbenzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
Stage #1: 1,4-Diacetylbenzene With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 1h; Enolization;
Stage #2: With diethyl chlorophosphate In tetrahydrofuran at -78℃; for 0.25h; Phosphorylation;
Stage #3: With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃; for 4h; Dehydration;
77%
(i) PCl5, (ii) NaNH2, liq. NH3; Multistep reaction;
(Z,Z)-1,4-bis(2-bromoethenyl)benzene
88248-70-8

(Z,Z)-1,4-bis(2-bromoethenyl)benzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium hydroxide In ethanol at 25℃; for 3h;73%
1.4-dibromobenzene
106-37-6

1.4-dibromobenzene

trimethylsilylacetylene
1066-54-2

trimethylsilylacetylene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
Stage #1: 1.4-dibromobenzene; trimethylsilylacetylene With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine In tetrahydrofuran Sonogashira coupling; Inert atmosphere;
Stage #2: With potassium hydroxide In methanol
72%
Sonogashira Cross-Coupling;
1,4-phenylenebis(methyleneisoxazolone)

1,4-phenylenebis(methyleneisoxazolone)

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
at 750℃; for 1.5h; Pyrolysis;72%
2-methyl-4-(4-(3-methyl-3-((2-nitrobenzyl)oxy)but-1-yn-1-yl)phenyl)but-3-yn-2-ol
1453814-03-3

2-methyl-4-(4-(3-methyl-3-((2-nitrobenzyl)oxy)but-1-yn-1-yl)phenyl)but-3-yn-2-ol

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium hydroxide In toluene at 110℃; for 12h; Inert atmosphere; UV-irradiation;70%
tert-butyldimethyl((4-((trimethylsilyl)ethynyl)phenyl)ethynyl)silane
1611483-95-4

tert-butyldimethyl((4-((trimethylsilyl)ethynyl)phenyl)ethynyl)silane

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium trimethylsilonate In dimethyl sulfoxide at 70℃; for 12h; Sealed tube; Schlenk technique;70%
1,4-bis(1,2-dibromoethyl)benzene
25393-98-0

1,4-bis(1,2-dibromoethyl)benzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With potassium hydroxide; Aliquat 336 In xylene Heating;63%
With potassium hydroxide
With potassium tert-butylate In tert-butyl alcohol for 1h; Heating;
dimethylmonochlorosilane
1066-35-9

dimethylmonochlorosilane

(4-bromophenyl)(trimethylsilyl)acetylene
16116-78-2

(4-bromophenyl)(trimethylsilyl)acetylene

A

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

B

(p-(dimethylsilyl)phenyl)acetylene
244307-32-2

(p-(dimethylsilyl)phenyl)acetylene

Conditions
ConditionsYield
Stage #1: (4-bromophenyl)(trimethylsilyl)acetylene With potassium carbonate In methanol for 5h;
Stage #2: With n-butyllithium In tetrahydrofuran at -78℃;
Stage #3: dimethylmonochlorosilane In tetrahydrofuran
A n/a
B 63%
(E)-3-Chloro-3-[4-((E)-1-chloro-3-oxo-propenyl)-phenyl]-propenal

(E)-3-Chloro-3-[4-((E)-1-chloro-3-oxo-propenyl)-phenyl]-propenal

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With sodium hydroxide In 1,4-dioxane; water at 80℃; for 0.5h;41%
1,4-diethynylcyclohexa-2,5-diene-1,4-diol
24936-01-4

1,4-diethynylcyclohexa-2,5-diene-1,4-diol

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With acetic acid; tin(ll) chloride at 40 - 45℃;
With tin(ll) chloride In acetic acid
trans-1,4-diethynyl-1,4-dihydroxy-2,5-cyclohexadiene
24936-01-4

trans-1,4-diethynyl-1,4-dihydroxy-2,5-cyclohexadiene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With sulfuric acid; tin(ll) chloride
1,4-Diethynyl-4-methoxy-cyclohexa-2,5-dienol

1,4-Diethynyl-4-methoxy-cyclohexa-2,5-dienol

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With sulfuric acid; tin(ll) chloride
1,4-di(1-chloroethenyl)benzene
125757-06-4

1,4-di(1-chloroethenyl)benzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With sodium amide In ammonia for 7h; Yield given;
C21H19Cl2NO2P(1+)*Cl(1-)

C21H19Cl2NO2P(1+)*Cl(1-)

A

1,3,3-trimethyl-1,3-dihydro-2H-indol-2-one
20200-86-6

1,3,3-trimethyl-1,3-dihydro-2H-indol-2-one

B

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With sodium hydroxide Ambient temperature; Yields of byproduct given;
With sodium hydroxide Ambient temperature; Yield given;
2,2'-bis-(1,3,3-trimethyl-1,3-dihydro-indol-2-ylidene)-1,1'-p-phenylene-bis-ethanone
105070-00-6

2,2'-bis-(1,3,3-trimethyl-1,3-dihydro-indol-2-ylidene)-1,1'-p-phenylene-bis-ethanone

A

1,3,3-trimethyl-1,3-dihydro-2H-indol-2-one
20200-86-6

1,3,3-trimethyl-1,3-dihydro-2H-indol-2-one

B

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With sodium hydroxide; trichlorophosphate 1. dioxane, 80 degC, 4h; Yield given. Multistep reaction. Yields of byproduct given;
1.4-dibromobenzene
106-37-6

1.4-dibromobenzene

2-methyl-but-3-yn-2-ol
115-19-5

2-methyl-but-3-yn-2-ol

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; potassium hydroxide; copper(l) iodide 2.) toluene, 100 deg C; Multistep reaction;
1.4-dibromobenzene
106-37-6

1.4-dibromobenzene

propargyl alcohol
107-19-7

propargyl alcohol

A

4-bromo-1-ethynylbenzene
766-96-1

4-bromo-1-ethynylbenzene

B

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With manganese(IV) oxide; potassium hydroxide; copper diacetate; diisopropylamine; triphenylphosphine; palladium dichloride 1.) reflux, 3 h, 2.) CH2Cl2, Et2O, 90 min; Yield given. Multistep reaction. Yields of byproduct given;
para-diiodobenzene
624-38-4

para-diiodobenzene

tributylethynyltin
994-89-8

tributylethynyltin

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran at 50℃;
With tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane at 110℃;
1,4-bis(1,2-dibromoethyl)benzene
25393-98-0

1,4-bis(1,2-dibromoethyl)benzene

ethanolic KOH

ethanolic KOH

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

para-diiodobenzene
624-38-4

para-diiodobenzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: copper(I) iodide; diisopropylamine; triethylamine / dichlorobis(triphenylphosphine)palladium(II) / tetrahydrofuran / 96 h / 60 °C
2: aq. potassium hydroxide / tetrahydrofuran; methanol / 1 h
View Scheme
Multi-step reaction with 2 steps
1: 81 percent / TBAF / tetrahydrofuran
View Scheme
Multi-step reaction with 2 steps
1: 93 percent / CuI; diisopropylamine / Pd(PPh3)4 / toluene / 24 h / 50 °C
2: 92 percent / K2CO3 / tetrahydrofuran; methanol / 1 h / 20 °C
View Scheme
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

phenylacetylene
536-74-3

phenylacetylene

star-poly(phenylacetylene), Mn: 37500 (GPC), Mw/Mn: 1.2 (GPC), methanol-insoluble; monomer(s): phenylacetylene; 1,4-diethynylbenzene

star-poly(phenylacetylene), Mn: 37500 (GPC), Mw/Mn: 1.2 (GPC), methanol-insoluble; monomer(s): phenylacetylene; 1,4-diethynylbenzene

Conditions
ConditionsYield
Stage #1: phenylacetylene With triphenylvinyllithium; triphenylphosphine; [(nbd)RhCl]2 In diethyl ether; toluene at 30℃; for 0.5h;
Stage #2: 1,4-diethynylbenzene In diethyl ether; toluene at 30℃; for 0.166667h;
100%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

4-bromo-benzaldehyde
1122-91-4

4-bromo-benzaldehyde

4,4'-(1,4-phenylenebis(ethyne-2,1-diyl))dibenzaldehyde
192188-70-8

4,4'-(1,4-phenylenebis(ethyne-2,1-diyl))dibenzaldehyde

Conditions
ConditionsYield
With triethylamine; triphenylphosphine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide In tetrahydrofuran for 30h; Sonogashira coupling; Heating;100%
1-Bromo-2-iodobenzene
583-55-1

1-Bromo-2-iodobenzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-bis((2-bromophenyl)ethynyl)benzene
852066-26-3

1,4-bis((2-bromophenyl)ethynyl)benzene

Conditions
ConditionsYield
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0) Sonogashira Cross-Coupling;100%
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine In acetonitrile at 80℃; for 12h; Sonogashira coupling; Inert atmosphere;99%
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine In acetonitrile at 80℃; for 12h; Sonogashira coupling; Inert atmosphere;99%
C23H20N8O4
919363-64-7

C23H20N8O4

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

C56H46N16O8
919363-69-2

C56H46N16O8

Conditions
ConditionsYield
With copper(II) sulfate; sodium L-ascorbate; tris[(1-benzyl-1H-1,2,3-triazol-4yl)methyl]amine In water; acetone; tert-butyl alcohol at 20℃; for 24h;100%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-di(2-iodoethynyl)benzene
878-06-8

1,4-di(2-iodoethynyl)benzene

Conditions
ConditionsYield
With aluminum oxide; N-iodo-succinimide In acetonitrile at 80℃; for 1h; Molecular sieve;99%
With N-iodo-succinimide; acetic acid In acetonitrile at 80℃; for 1.5h; Molecular sieve;98%
With N-iodo-succinimide; acetic acid In acetonitrile at 80℃; for 1.5h; Molecular sieve;98%
trans-dichloro-bis(tri-n-butylphosphine)platinum(II)
15391-01-2, 15076-72-9, 15390-92-8

trans-dichloro-bis(tri-n-butylphosphine)platinum(II)

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

trans-{Pt(PBu3)2CCC6H4CC-}n

trans-{Pt(PBu3)2CCC6H4CC-}n

Conditions
ConditionsYield
With copper(l) iodide; diethylamine In tetrahydrofuran refluxed under N2; pptd., concd., dried (vac.), dissolved in CHCl3, poured into MeOH;99%
2-iodoprop-2-en-1-ol
84201-43-4

2-iodoprop-2-en-1-ol

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

4,4'-(1,4-phenylene)bis(2-methylenebut-3-yn-1-ol)
1272632-90-2

4,4'-(1,4-phenylene)bis(2-methylenebut-3-yn-1-ol)

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine at 65℃; for 16h; Sonogashira coupling; Inert atmosphere;99%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1-butyl-4-((4-iodophenyl)ethynyl)benzene

1-butyl-4-((4-iodophenyl)ethynyl)benzene

1,4-bis((4-(4-butylphenylethynyl)phenyl)ethynyl)benzene

1,4-bis((4-(4-butylphenylethynyl)phenyl)ethynyl)benzene

Conditions
ConditionsYield
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine In toluene at 20℃; for 12h; Sonogashira Cross-Coupling; Inert atmosphere;99%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

2–(3-phenylpropiolyl)benzaldehyde

2–(3-phenylpropiolyl)benzaldehyde

C42H22O2

C42H22O2

Conditions
ConditionsYield
Stage #1: 1,4-diethynylbenzene With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.166667h; Inert atmosphere;
Stage #2: 2–(3-phenylpropiolyl)benzaldehyde In tetrahydrofuran; hexane at -78 - 20℃; for 6h; Inert atmosphere;
Stage #3: With hydrogenchloride In water at 20℃; for 3h; Inert atmosphere;
98.8%
1.4-dibromobenzene
106-37-6

1.4-dibromobenzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Poly(1,4-phenyleneethynylene)

Poly(1,4-phenyleneethynylene)

Conditions
ConditionsYield
With copper(l) iodide; di-n-propylamine; bis-triphenylphosphine-palladium(II) chloride at 75℃; for 0.666667h;98%
4-acetoxyiodobenzene
33527-94-5

4-acetoxyiodobenzene

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-bis(4-acetoxyphenyl)ethynylbenzene
1256281-23-8

1,4-bis(4-acetoxyphenyl)ethynylbenzene

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine at 20℃; for 18h; Inert atmosphere;98%
pyrrolidine
123-75-1

pyrrolidine

formaldehyd
50-00-0

formaldehyd

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

A

1-[3-(4-ethynylphenyl)prop-2-yn-1-yl]pyrrolidine

1-[3-(4-ethynylphenyl)prop-2-yn-1-yl]pyrrolidine

B

1,4-bis[3-(pyrrolidin-1-yl)prop-1-yn-1-yl]benzene

1,4-bis[3-(pyrrolidin-1-yl)prop-1-yn-1-yl]benzene

Conditions
ConditionsYield
With copper(I) (2-biphenyl)di-tert-butylphosphane-aniline hexaflurophosphate In toluene at 50℃; under 1500.15 Torr; Reagent/catalyst; Solvent; Time; Inert atmosphere;A n/a
B 98%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

benzyl chloride
100-44-7

benzyl chloride

1-benzyl-4-(4-ethynylphenyl)-1H-1,2,3-triazole
1248568-43-5

1-benzyl-4-(4-ethynylphenyl)-1H-1,2,3-triazole

Conditions
ConditionsYield
With sodium azide In water at 20℃; for 2h; Huisgen Cycloaddition; Green chemistry;98%
4,4,5,5-tetramethyl<1,3,2>dioxaphospholane-2-oxide
16352-18-4

4,4,5,5-tetramethyl<1,3,2>dioxaphospholane-2-oxide

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

C22H32O6P2

C22H32O6P2

Conditions
ConditionsYield
With tris(triphenylphosphine)rhodium(I) chloride In acetone at 25℃; for 20h;97%
C15H27N3O6
1028208-44-7

C15H27N3O6

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

C40H60N6O12
1095278-08-2

C40H60N6O12

Conditions
ConditionsYield
With sodium 2-(1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2,5-dihydro-furan-3-olate; water; N-ethyl-N,N-diisopropylamine In tetrahydrofuran; water Inert atmosphere;97%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

8-bromoguanosine
4016-63-1

8-bromoguanosine

8,8'-[benzene-1,4-diyl-di(ethyn-2,1-diyl)]diguanosine
1190592-50-7

8,8'-[benzene-1,4-diyl-di(ethyn-2,1-diyl)]diguanosine

Conditions
ConditionsYield
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine In N,N-dimethyl-formamide at 70℃; for 16h; Sonogashira-Hagihara coupling; Inert atmosphere;97%
4-Iodoacetophenone
13329-40-3

4-Iodoacetophenone

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-Bis(4-acetylphenylethynyl)benzene

1,4-Bis(4-acetylphenylethynyl)benzene

Conditions
ConditionsYield
With C16H20Cl2N2O2Pd; potassium hydroxide In water; acetonitrile at 20℃; for 1h; Sonogashira Cross-Coupling;97%
With 2,2′-(1,2-phenylene)bis(4,4-di-methyl-4,5-dihydrooxazole)-N,N′-dichloridopalladium(II); potassium hydroxide In water; acetonitrile at 20℃; for 1h; Sonogashira Cross-Coupling;97%
With 1,4-diaza-bicyclo[2.2.2]octane; palladium diacetate; silica gel for 0.333333h; Sonogashira coupling; Neat (no solvent); ball mill; chemoselective reaction;69 %Spectr.
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-di(1H-1,2,3-triazol-4-yl)benzene
1244804-05-4, 935747-92-5

1,4-di(1H-1,2,3-triazol-4-yl)benzene

Conditions
ConditionsYield
With sodium azide In water at 100℃; Green chemistry; regioselective reaction;97%
With copper(l) iodide; trimethylsilylazide In methanol; N,N-dimethyl-formamide at 90℃; for 44h; Inert atmosphere;82%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

PPh3*B(C6F5)3
856827-93-5

PPh3*B(C6F5)3

E-HCtCC6H4C(PPh3)=C(H)B(C6F5)3
1257311-31-1

E-HCtCC6H4C(PPh3)=C(H)B(C6F5)3

Conditions
ConditionsYield
In dichloromethane (N2); addn. of acetylene deriv. to CH2Cl2 suspn. of triphenylphosphine-borane deriv., stirring overnight; concg., layering with pentane, cooling to -35°C overnight, isolation of ppt., elem. anal.;97%
In dichloromethane Inert atmosphere;97%
3-iodopyridine
1120-90-7

3-iodopyridine

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-bis(pyridin-3-ylethynyl)benzene
271250-99-8

1,4-bis(pyridin-3-ylethynyl)benzene

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; caesium carbonate In N,N-dimethyl-formamide at 50℃; for 48h; Sonogashira coupling;97%
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine In tetrahydrofuran at 20℃; for 18h; Sonogashira coupling; Inert atmosphere;65%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

ortho-bromobenzaldehyde
6630-33-7

ortho-bromobenzaldehyde

2,2'-(1,4-phenylenebis(ethyne-2,1-diyl))dibenzaldehyde
1301742-81-3

2,2'-(1,4-phenylenebis(ethyne-2,1-diyl))dibenzaldehyde

Conditions
ConditionsYield
Stage #1: ortho-bromobenzaldehyde With bis-triphenylphosphine-palladium(II) chloride; triethylamine In tetrahydrofuran at 20℃; for 0.166667h; Sonogashira Cross-Coupling;
Stage #2: 1,4-diethynylbenzene With copper(l) iodide In tetrahydrofuran at 20℃; for 24h; Sonogashira Cross-Coupling;
97%
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); triethylamine In acetonitrile at 80℃; for 18h; Sonogashira coupling; Inert atmosphere;80%
trimethylsilyl iodide
16029-98-4

trimethylsilyl iodide

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-Bis(trimethylsilylethynyl)benzene
17938-13-5

1,4-Bis(trimethylsilylethynyl)benzene

Conditions
ConditionsYield
With [{Ir(μ-Cl)(CO)2}2]; N-ethyl-N,N-diisopropylamine In toluene at 80℃; for 24h; Inert atmosphere;97%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

benzyl bromide
100-39-0

benzyl bromide

1-benzyl-4-(4-(1-benzyl-1H-1,2,3-triazole-4-yl)phenyl)-1H-1,2,3-triazole
115415-19-5

1-benzyl-4-(4-(1-benzyl-1H-1,2,3-triazole-4-yl)phenyl)-1H-1,2,3-triazole

Conditions
ConditionsYield
With sodium azide; [CuI(3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane)3] In water; acetonitrile at 125℃; for 0.25h; Catalytic behavior; Huisgen Cycloaddition; Sealed tube; Microwave irradiation;97%
With sodium azide; [(tris(3,5-dimethyl-1-pyrazolyl)methane)2Cu](BF4)2 In methanol; water at 125℃; for 0.5h; Catalytic behavior; Microwave irradiation;95%
With sodium azide In water at 40℃; for 3h;89%
1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

Diphenylphosphine oxide
4559-70-0

Diphenylphosphine oxide

1,4-<1,2-bis(diphenylphosphinoxido)ethyl>ethynylbenzene

1,4-<1,2-bis(diphenylphosphinoxido)ethyl>ethynylbenzene

Conditions
ConditionsYield
With potassium hydroxide; tetrabutylammomium bromide In water; benzene for 1h;96.5%

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