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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

12-Crown-4

Cas:294-93-9

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality 12-Crown-4(1,4,7,10-Tetraoxacyclododecane) supplier in China

Cas:294-93-9

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Henan Allgreen Chemical Co.,Ltd

Good quality Good price Promptly delivery Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of custom Application:intermediate Transportation:Acco

294-93-912-Crown-4

Cas:294-93-9

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

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

12-Crown-4

Cas:294-93-9

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

12-Crown-4

Cas:294-93-9

Min.Order:1 Gram

FOB Price: $1000.0 / 1300.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 6 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 on.O

294-93-9 12-Crown-4

Cas:294-93-9

Min.Order:1 Kilogram

FOB Price: $1000.0

Type:Lab/Research institutions

inquiry

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

Industrial Grade CAS 294-93-9 with competitive price

Cas:294-93-9

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

inquiry

Henan Wentao Chemical Product Co., Ltd.

We are leading fine chemicals supplier in China and Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED intermediat

12-Crown-4CAS NO.: 294-93-9

Cas:294-93-9

Min.Order:1 Kilogram

FOB Price: $4.0 / 5.0

Type:Lab/Research institutions

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients 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 Specialized

12-Crown-4 294-93-9

Cas:294-93-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

China supply Best price 12-Crown-4 CAS294-93-9

Cas:294-93-9

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

12-Crown-4 CAS: 294-93-9 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 intermediates,

12-Crown-4 CAS: 294-93-9

Cas:294-93-9

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

12-Crown-4

Cas:294-93-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

Price, service, company and transport advantage : 1. best service, high quality and reasonable price 2. it's customers' right to choose the package (ems, dhl, fedex, ups); 3. it's customers' right to choose the pa

BEST PRICE/ 12-Crown-4

Cas:294-93-9

Min.Order:10 Gram

Negotiable

Type:Trading Company

inquiry

Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

12-Crown-4(1,4,7,10-Tetraoxacyclododecane)

Cas:294-93-9

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

12-Crown-4

Cas:294-93-9

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

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

12-Crown-4

Cas:294-93-9

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

Factory Supply 12-Crown-4

Cas:294-93-9

Min.Order:0 Metric Ton

Negotiable

Type:Other

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

12-Crown-4

Cas:294-93-9

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

High quality 12-Crown-4

Cas:294-93-9

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

12-Crown-4

Cas:294-93-9

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

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,

12-Crown-4

Cas:294-93-9

Min.Order:1 Metric Ton

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

12-Crown-4

Cas:294-93-9

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Hangzhou Huarong Pharm Co., Ltd.

We Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O

12-Crown-4

Cas:294-93-9

Min.Order:0

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

12-Crown-4

Cas:294-93-9

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

12-Crown-4

Cas:294-93-9

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

12-Crown-4

Cas:294-93-9

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

12-Crown-4

Cas:294-93-9

Min.Order:1 Metric Ton

FOB Price: $1.0

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

12-Crown-4

Cas:294-93-9

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

12-Crown-4

Cas:294-93-9

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 12-Crown-4 5g

Cas:294-93-9

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

[Li(12-crown-4)][W(CO)5(P(CH(SiMe3)2)(OPh))]

[Li(12-crown-4)][W(CO)5(P(CH(SiMe3)2)(OPh))]

phenylacetylene
536-74-3

phenylacetylene

methyl trifluoromethanesulfonate
333-27-7

methyl trifluoromethanesulfonate

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

[W(CO)5(P(CHCMePh)(CH(SiMe3)2)(OPh))]
1416967-44-6

[W(CO)5(P(CHCMePh)(CH(SiMe3)2)(OPh))]

Conditions
ConditionsYield
In tetrahydrofuran byproducts: LiOTf; under Ar, soln. of phenylacetylene (1.0 mmol) added to W complex in THF at -78°C, after 0.5 h of stirring, phenylacetylene added, mixt. heated at reflux for 2 h, cooled to ambient temp., MeOTf added; volatiles evapd. in vac. (ca. 0.01 mbar), raw product purified by columnchromy. (SiO2, -20°C, petroleum ether/Et2O, 10:1), product obtai ned from 2nd fraction, detd. by 1H NMR, 13C NMR, 31P NMR, 29Si NMR, IR, MS;A n/a
B 62%
ethylene glycol
107-21-1

ethylene glycol

1,2-bis(2-chloroethoxy)ethane
112-26-5

1,2-bis(2-chloroethoxy)ethane

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
With potassium hydroxide for 0.1h; microwave irradiation;37%
Tetraethylene glycol
112-60-7

Tetraethylene glycol

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
With cyanomethylenetributyl-phosphorane In benzene at 60℃; sealed vessel;30%
With p-toluenesulfonyl chloride; lithium tert-butoxide In tert-butyl alcohol Heating;27%
3-oxa-1,5-dichloropentane
111-44-4

3-oxa-1,5-dichloropentane

diethylene glycol
111-46-6

diethylene glycol

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
With lithium hydride In dimethyl sulfoxide Heating; different basis as 'template' agents, other solvents;24%
With lithium hydride In dimethyl sulfoxide Heating;24%
Tetraethylene glycol
112-60-7

Tetraethylene glycol

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

24-crown-8
33089-37-1

24-crown-8

C

<36>crown-12
71092-59-6

<36>crown-12

D

48-Crown-16
71092-61-0

48-Crown-16

Conditions
ConditionsYield
With potassium hydroxide; p-toluenesulfonyl chloride In 1,4-dioxane at 65℃; Further byproducts given;A 1.4%
B 23%
C 11%
D 4.3%
Tetraethylene glycol
112-60-7

Tetraethylene glycol

diethylene glycol
111-46-6

diethylene glycol

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

18-crown-6 ether
17455-13-9

18-crown-6 ether

C

24-crown-8
33089-37-1

24-crown-8

Conditions
ConditionsYield
With potassium hydroxide; p-toluenesulfonyl chloride In 1,4-dioxane at 60℃;A n/a
B 23%
C 3%
Tetraethylene glycol
112-60-7

Tetraethylene glycol

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

24-crown-8
33089-37-1

24-crown-8

Conditions
ConditionsYield
With sodium hydroxide; p-toluenesulfonyl chloride In 1,4-dioxane at 20℃;A 3%
B 12%
C8H16O4*K(1+)

C8H16O4*K(1+)

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
In methanol at 25℃; Equilibrium constant; enthalpy-entropy compensation for the complexation reactions of crown ethers with alkaline cations;
2C8H16O4*K(1+)

2C8H16O4*K(1+)

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

C8H16O4*K(1+)

C8H16O4*K(1+)

Conditions
ConditionsYield
In methanol at 25℃; Equilibrium constant; enthalpy-entropy compensation for the complexation reactions of crown ethers with alkaline cations;
C8H16O4*C3H9N*H(1+)

C8H16O4*C3H9N*H(1+)

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

trimethylammonium
145384-53-8

trimethylammonium

Conditions
ConditionsYield
Thermodynamic data; enthalpy and entropy changes for the complex dissociation reaction: ΔH0D, ΔS0D;
C8H16O4*C6H13N*H(1+)

C8H16O4*C6H13N*H(1+)

A

cyclohexyl-ammonium cation
29384-28-9

cyclohexyl-ammonium cation

B

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
Thermodynamic data; enthalpy and entropy changes for the complex dissociation reaction: ΔH0D, ΔS0D;
C8H16O4*C5H5N*H(1+)

C8H16O4*C5H5N*H(1+)

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

pyridin-1-ium
16969-45-2

pyridin-1-ium

Conditions
ConditionsYield
Thermodynamic data; enthalpy and entropy changes for the complex dissociation reaction: ΔH0D, ΔS0D;
C8H16O4*C4H4N2*H(1+)

C8H16O4*C4H4N2*H(1+)

A

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

B

1,2-diazineH+
17009-97-1

1,2-diazineH+

Conditions
ConditionsYield
Thermodynamic data; enthalpy and entropy changes for the complex dissociation reaction: ΔH0D, ΔS0D;
12-Crown-4 lithium perchlorate

12-Crown-4 lithium perchlorate

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
In acetone Equilibrium constant; various solvents (MeNO2, MeCN, propylene carbonate, MeOH, pyridine), complex formation between crown ethers and lithim ion, effect of solvent of the stability of complexes, 7Li NMR study;
C8H16O4*2ClO4(1-)*2Li(1+)

C8H16O4*2ClO4(1-)*2Li(1+)

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
In nitromethane Equilibrium constant; various solvents (MeCN, propylene carbonate, Me2CO, MeOH, pyridine), complex formation between crown ethers and lithim ion, effect of solvent of the stability of complexes, formation of 1:1 and 1:2 complexes, 7Li NMR study;
1,4,7,10-Tetraoxa-cyclododecane; compound with GENERIC INORGANIC NEUTRAL COMPONENT

1,4,7,10-Tetraoxa-cyclododecane; compound with GENERIC INORGANIC NEUTRAL COMPONENT

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
With Iodine monochloride In benzene at 24.9℃; Equilibrium constant;
C8H16O4*C10H15(1-)*C24BF20(1-)*Si(2+)

C8H16O4*C10H15(1-)*C24BF20(1-)*Si(2+)

A

1,4-dioxane
123-91-1

1,4-dioxane

B

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Conditions
ConditionsYield
In dichloromethane-d2 for 480h;
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Lu(N(SiMe3)2)3

Lu(N(SiMe3)2)3

sodium trimethylsilanolate
18027-10-6

sodium trimethylsilanolate

[Na((CH2CH2O)4)2](1+)*[Lu(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Lu(N(Si(CH3)3)2)3(OSi(CH3)3)]

[Na((CH2CH2O)4)2](1+)*[Lu(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Lu(N(Si(CH3)3)2)3(OSi(CH3)3)]

Conditions
ConditionsYield
In hexane dry atm.; molar ratio 1:1:2, stirring (room temp., 6 h); filtn., washing (n-hexane), drying (vac.); elem. anal.;100%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

sodium trimethylsilanolate
18027-10-6

sodium trimethylsilanolate

tris(bis(trimethylsilyl)amido)europium(III)

tris(bis(trimethylsilyl)amido)europium(III)

[Na((CH2CH2O)4)2](1+)*[Eu(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Eu(N(Si(CH3)3)2)3(OSi(CH3)3)]

[Na((CH2CH2O)4)2](1+)*[Eu(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Eu(N(Si(CH3)3)2)3(OSi(CH3)3)]

Conditions
ConditionsYield
In hexane dry atm.; molar ratio 1:1:2, stirring (room temp., 6 h); filtn., washing (n-hexane), drying (vac.); elem. anal.;100%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

tris(bis(trimethylsilyl)amido)ytterbium(III)

tris(bis(trimethylsilyl)amido)ytterbium(III)

sodium trimethylsilanolate
18027-10-6

sodium trimethylsilanolate

[Na((CH2CH2O)4)2](1+)*[Yb(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Yb(N(Si(CH3)3)2)3(OSi(CH3)3)]

[Na((CH2CH2O)4)2](1+)*[Yb(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Yb(N(Si(CH3)3)2)3(OSi(CH3)3)]

Conditions
ConditionsYield
In hexane dry atm.; molar ratio 1:1:2, stirring (room temp., 6 h); filtn., washing (n-hexane), drying (vac.); elem. anal.;100%
tris(bis(trimethylsilyl)amido)samarium(III)

tris(bis(trimethylsilyl)amido)samarium(III)

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

sodium trimethylsilanolate
18027-10-6

sodium trimethylsilanolate

[Na((CH2CH2O)4)2](1+)*[Sm(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Sm(N(Si(CH3)3)2)3(OSi(CH3)3)]

[Na((CH2CH2O)4)2](1+)*[Sm(N(Si(CH3)3)2)3(OSi(CH3)3)](1-)=[Na((CH2CH2O)4)2][Sm(N(Si(CH3)3)2)3(OSi(CH3)3)]

Conditions
ConditionsYield
In hexane dry atm.; molar ratio 1:1:2, stirring (room temp., 6 h); filtn., washing (n-hexane), drying (vac.); elem. anal.;100%
tetrahydrofuran
109-99-9

tetrahydrofuran

n-butyllithium
109-72-8, 29786-93-4

n-butyllithium

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

C12H20B10

C12H20B10

C12H19B10(1-)*Li(1+)*2C4H8O*2C8H16O4

C12H19B10(1-)*Li(1+)*2C4H8O*2C8H16O4

Conditions
ConditionsYield
Stage #1: tetrahydrofuran; n-butyllithium; C12H20B10
Stage #2: (1,4,7,10-tetraoxacyclododecane) In tetrahydrofuran
100%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

[Li(THF)3][UO2(N(SiHMe2)tBu)3]

[Li(THF)3][UO2(N(SiHMe2)tBu)3]

[Li(12-crown-4)2][UO2(N(SiHMe2)tBu)3]

[Li(12-crown-4)2][UO2(N(SiHMe2)tBu)3]

Conditions
ConditionsYield
In tetrahydrofuran for 1h;100%
beryllium(II) chloride
7787-47-5

beryllium(II) chloride

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

[(BeCl)([12]crown-4)]Cl

[(BeCl)([12]crown-4)]Cl

Conditions
ConditionsYield
In dichloromethane at 20℃; Inert atmosphere; Schlenk technique;100%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

C36H30Be3

C36H30Be3

phenyllithium
591-51-5

phenyllithium

C16H32Li2O8(2+)*2C18H15Be(1-)

C16H32Li2O8(2+)*2C18H15Be(1-)

Conditions
ConditionsYield
Stage #1: (1,4,7,10-tetraoxacyclododecane); C36H30Be3; phenyllithium In benzene-d6
Stage #2: In benzene-d6 at 80℃;
100%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

C36H30Be3

C36H30Be3

C14H21BeO4(1+)*C18H15Be(1-)

C14H21BeO4(1+)*C18H15Be(1-)

Conditions
ConditionsYield
Stage #1: (1,4,7,10-tetraoxacyclododecane); C36H30Be3 In benzene-d6
Stage #2: In benzene-d6 Heating;
100%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

{Na}{(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni(CO)}

{Na}{(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni(CO)}

{Na(12-crown-4)2}{(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni(CO)}

{Na(12-crown-4)2}{(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni(CO)}

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 0.5h; Inert atmosphere;99%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

[W(carbonyl)5([bis(trimethylsilyl)methyl]cyanophosphane)]
851576-85-7

[W(carbonyl)5([bis(trimethylsilyl)methyl]cyanophosphane)]

tert.-butyl lithium
594-19-4

tert.-butyl lithium

[(OC)5WP(CH(SiMe3)2)CNLi(12-crown-4)]
947333-61-1

[(OC)5WP(CH(SiMe3)2)CNLi(12-crown-4)]

Conditions
ConditionsYield
In diethyl ether; hexane under Ar; soln. of t-BuLi in n-hexane added dropwise at -80°C to stirred soln. of W complex in Et2O and 12-crown-4; warmed slowly to roomtemp. for 3.5 h; solvent removed under vac.; washed with Et2O and n-pentane; dried under reduced pressure; elem. anal.;98.3%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

(Si(o-C6H4PiPr2)3)Fe[(CO)Na(THF)3]
1277179-18-6

(Si(o-C6H4PiPr2)3)Fe[(CO)Na(THF)3]

[(Na(12-crown-4)2][(Si(o-C6H4PiPr2)3)Fe(CO)]

[(Na(12-crown-4)2][(Si(o-C6H4PiPr2)3)Fe(CO)]

Conditions
ConditionsYield
In tetrahydrofuran (Schlenk or glovebox, N2) the soln. of 12-crown-4 in THF was added dropwise to a soln. of complex in THF, stirred for 30 min at room temp.; filtered, volatiles were removed under vac., the solid was washed with pentane; elem. anal.;98%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni-μ-CO2-Na*THF

(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni-μ-CO2-Na*THF

{Na(12-crown-4)2}{(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni(CO2)}

{Na(12-crown-4)2}{(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide)Ni(CO2)}

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 0.5h; Inert atmosphere;98%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

C42H51CrLi2O3

C42H51CrLi2O3

C30H25Cr(2-)*2C12H24LiO5(1+)

C30H25Cr(2-)*2C12H24LiO5(1+)

Conditions
ConditionsYield
In tetrahydrofuran at 0℃; Solvent; Inert atmosphere; Schlenk technique;98%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

[Na(tetrahydrofuran)x][(Mo(N[i-Pr](3,5-C6H3Me2)3)2N]

[Na(tetrahydrofuran)x][(Mo(N[i-Pr](3,5-C6H3Me2)3)2N]

nitrogen
7727-37-9

nitrogen

A

[Mo(N[i-Pr](3,5-C6H3Me2)3N]
394246-98-1

[Mo(N[i-Pr](3,5-C6H3Me2)3N]

B

[Na(12-crown-4)2][(Mo(N[i-Pr](3,5-C6H3Me2)3)N2]

[Na(12-crown-4)2][(Mo(N[i-Pr](3,5-C6H3Me2)3)N2]

Conditions
ConditionsYield
In not given at 25°C? 1 atm and in the presence of crown ether (2 equiv. per Na);A n/a
B 97%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

C24H48LiP2Si4(1-)*4C4H8O*Li(1+)

C24H48LiP2Si4(1-)*4C4H8O*Li(1+)

C12H24PSi2(1-)*2C8H16O4*Li(1+)

C12H24PSi2(1-)*2C8H16O4*Li(1+)

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 3h; Inert atmosphere; Glovebox;97%
tin(II) trifluoromethanesulfonate

tin(II) trifluoromethanesulfonate

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

bis([12]crown-4)tin(II) triflate

bis([12]crown-4)tin(II) triflate

Conditions
ConditionsYield
In tetrahydrofuran standard inert-atmosphere techniques; soln. of (12)crown-4 (0.943 mmol) added to soln. of Sn(OTf)2 (0.479 mmol), stiired for 2 h; solvent removed (in vac.), washed with pentane; elem. anal.;96%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

Ba((N,N-dimethylamino)diboranato)2(diethyl ether)(x)

Ba((N,N-dimethylamino)diboranato)2(diethyl ether)(x)

bis[(N,N-dimethylamino)diboranato](12-crown-4) barium(II)

bis[(N,N-dimethylamino)diboranato](12-crown-4) barium(II)

Conditions
ConditionsYield
In diethyl ether under Ar atm. using Schlenk techniques; to soln. of Ba complex in Et2O was added Lewis base; mixt. stirred overnight; solid filtered; washed (pentane); dried under vac.; elem. anal.;96%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

potassium hexamethylsilazane
40949-94-8

potassium hexamethylsilazane

C28H68K2N2O8Si4

C28H68K2N2O8Si4

Conditions
ConditionsYield
In toluene Inert atmosphere; Schlenk technique;96%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

C36H54FeGaN2P3(1-)*C12H24NaO3(1+)

C36H54FeGaN2P3(1-)*C12H24NaO3(1+)

C36H54FeGaN2P3(1-)*C16H32NaO8(1+)

C36H54FeGaN2P3(1-)*C16H32NaO8(1+)

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 2h;96%
triphenylboroxine
3262-89-3

triphenylboroxine

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

water
7732-18-5

water

lithium pyrazolide

lithium pyrazolide

Li[Li(tetrahydrofuran)(phenyl(pyrazolyl)B(μ-O)(μ-OB(phenyl)O)B(pyrazolyl)phenyl)]*(12-crown-4)*2H2O

Li[Li(tetrahydrofuran)(phenyl(pyrazolyl)B(μ-O)(μ-OB(phenyl)O)B(pyrazolyl)phenyl)]*(12-crown-4)*2H2O

Conditions
ConditionsYield
In tetrahydrofuran (N2); using Schlenk techniques; stirring of mixt. of Li(pz) (2 equiv.), Ph3B3O3 (1 equiv.) and 12-crown-4 (2 equiv.) in THF at room temp. for 30min; addn. of hexane; cooling to -5°C overnight; crystn.; rinsing withhexane; drying under reduced pressure;95%
tetrahydrofuran
109-99-9

tetrahydrofuran

triphenylboroxine
3262-89-3

triphenylboroxine

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

lithium pyrazolide

lithium pyrazolide

C8H16LiO4(1+)*C28H29B3LiN4O4(1-)

C8H16LiO4(1+)*C28H29B3LiN4O4(1-)

Conditions
ConditionsYield
for 0.5h;95%
selenium
7782-49-2

selenium

(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

C44H69ClLiLuO3Si2

C44H69ClLiLuO3Si2

pivalaldehyde
630-19-3

pivalaldehyde

C37H53ClLuOSeSi2(1-)*Li(1+)*2C8H16O4

C37H53ClLuOSeSi2(1-)*Li(1+)*2C8H16O4

Conditions
ConditionsYield
Stage #1: C44H69ClLiLuO3Si2; pivalaldehyde In tetrahydrofuran at 20℃; for 3h; Inert atmosphere;
Stage #2: selenium In tetrahydrofuran Inert atmosphere;
Stage #3: (1,4,7,10-tetraoxacyclododecane) In tetrahydrofuran for 1h; Inert atmosphere;
95%
(1,4,7,10-tetraoxacyclododecane)
294-93-9

(1,4,7,10-tetraoxacyclododecane)

uranium(III) tris(1,3-bis-(trimethylsilyl)cyclopentadienyl)
174090-55-2

uranium(III) tris(1,3-bis-(trimethylsilyl)cyclopentadienyl)

sodium
7440-23-5

sodium

[Na(12-crown-4)2][(C5H3(SiMe3)2)3U]

[Na(12-crown-4)2][(C5H3(SiMe3)2)3U]

Conditions
ConditionsYield
In tetrahydrofuran for 0.5h; Glovebox; Inert atmosphere; Schlenk technique;95%

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