High qualityHangzhou Keying Chem Co., Ltd. Is a comprehensive enterprise, dedicated to the development, production and marketing of chemicals. As a technology innovative and service professional enterprise, Our company mainly engages in global pharma
Cas:546-56-5
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inquiryDayangChem 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
Cas:546-56-5
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inquiryProduct description: Product name Octaphenylcyclotetrasiloxane CAS number 546-56-5 Assay ≥99.5% Appearance White powder Capacity 500mt/year Application Polymers and pharmace
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Min.Order:100 Gram
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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
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Type:Manufacturers
inquiryOctaphenylcyclotetrasiloxane Basic information Product Name: Octaphenylcyclotetrasiloxane Synonyms: 1,1,3,3,5,5,7,7-Octaphenylcyclotetrasiloxane;2,2,4,4,6,6,8,8-Octaphenyl-1,3,5,7,2,4,6,
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
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inquiryWITH 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
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Min.Order:1 Kilogram
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inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam
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inquiryName: Octaphenylcyclotetrasiloxane CAS: 546-56-5 Appearance: white powder Application: For the synthesis of pharmaceutical intermediates or other polymers. Appearance:White powder Storage:RT. Package:drum Application:Pharmaceutic
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Min.Order:1 Gram
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inquiryHunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as
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Min.Order:1 Kilogram
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inquiryOctaphenylcyclotetrasiloxane CAS:546-56-5 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 organi
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inquiryHenan 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
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inquiryJ&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
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inquiryPacking: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Transportation:Express/Sea/Air Port:Ningbo/Shanghai/Qingd
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
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Min.Order:1 Gram
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inquirySuperior quality Appearance:White solid 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:Used as Pharmaceutical Intermediates Transportation:BY AIR
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Min.Order:1 Kilogram
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inquiryHangzhou Fanda Chemical Co.,Ltd (FandaChem) , a China-based chemical company, specialize in exportingOctaphenylcyclotetrasiloxane CAS:546-56-5, Please contact us by email freely. We are leading exporter in China. If you really need th
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inquirySAGECHEM 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
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inquiryHigh 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
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inquiryHangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best quality in your re
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inquiryTAIHO 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
Conditions | Yield |
---|---|
With oxygen; sodium t-butanolate In tetrahydrofuran at 20℃; for 1h; | 100% |
With C15H27Br2CoN3; potassium tert-butylate; water In 1,4-dioxane at 60℃; for 2h; Reagent/catalyst; | 96% |
With water; 2,3-Dihydro-1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene In acetonitrile at 20℃; for 2.5h; Time; Solvent; Concentration; Schlenk technique; Glovebox; | 92% |
With [Rh(dimethylsulfoxide)3Cl3] at 40 - 50℃; |
octaphenylcyclotetrasiloxane
Conditions | Yield |
---|---|
Stage #1: N-(2-bromo-2-(diphenyl(vinyl)silyl)ethyl)-N'-(trifluoromethylsulfonyl)acetamidine With N-Bromosuccinimide; 4-Chlorobenzenesulfonamide In acetonitrile at 20℃; for 15h; Stage #2: With potassium carbonate for 4h; | 99% |
Conditions | Yield |
---|---|
With triethylamine In toluene | 92.1% |
at 140 - 180℃; | |
With acetyl chloride |
diphenylsilyl dichloride
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
Conditions | Yield |
---|---|
With pyridine; sodium hydrogencarbonate In toluene at 20℃; for 3h; | A 30.3% B 67.2% |
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; | |
Multi-step reaction with 2 steps 1: H2O / water 2: diethyl ether View Scheme | |
Multi-step reaction with 3 steps 1: H2O / water 2: not given 3: diethyl ether View Scheme |
diphenylsilyl dichloride
rac-methylbenzylamine
octaphenylcyclotetrasiloxane
Conditions | Yield |
---|---|
With triethylamine In toluene for 48h; Reflux; | 47.3% |
diethoxydiphenylsilane
A
octaphenylcyclotetrasiloxane
B
1,1,1,5,5,5-hexamethyl-3,3-diphenyltrisiloxane
C
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
Conditions | Yield |
---|---|
With oxygen; tert-butylammonium hexafluorophosphate(V) In N,N-dimethyl-formamide at 45℃; Electrolysis; | A 5% B 5.2% C 23% |
dimethoxy(diphenyl)silane
A
octaphenylcyclotetrasiloxane
B
1,1,1,5,5,5-hexamethyl-3,3-diphenyltrisiloxane
C
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
Conditions | Yield |
---|---|
With oxygen; tert-butylammonium hexafluorophosphate(V) In N,N-dimethyl-formamide at 45℃; Electrolysis; | A 2% B 5% C 18% |
piperidine
diethyl ether
1,1,3,3-tetraphenyldisiloxane-1,3-diol
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
piperidine
diethyl ether
Hexaphenyltrisiloxan-1,5-diol
octaphenylcyclotetrasiloxane
Conditions | Yield |
---|---|
beim Erhitzen; | |
With piperidine | |
With acetyl chloride | |
Multi-step reaction with 2 steps 1: acetic acid; KOH-solution 2: acetyl chloride View Scheme | |
With CH3COCl In further solvent(s) evapn. of a soln. of tetraphenyl-1,3-dioxydisiloxane in CH3COCl;; |
1,1,3,3-tetraphenyldisiloxane-1,3-diol
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
Conditions | Yield |
---|---|
beim Erhitzen; | |
With hydrogenchloride In ethanol (C6H5)2(HO)SiOSi(OH)(C6H5)2 and alc. HCl at elevated temp.;; | |
With acetyl chloride In not given |
Conditions | Yield |
---|---|
With piperidine | |
Multi-step reaction with 3 steps 1: KOH / ethanol 3: CH3COCl / further solvent(s) View Scheme | |
Multi-step reaction with 3 steps 1: KOH / ethanol 2: not given 3: CH3COCl / further solvent(s) View Scheme | |
Multi-step reaction with 3 steps 1: KOH / ethanol 2: not given 3: neat (no solvent) View Scheme | |
With piperidine In diethyl ether |
Conditions | Yield |
---|---|
With piperidine at 90℃; |
1,1,3,3,5,5,7,7-octaphenyl-1,3,5,7-tetrasiloxane-1,7-diol
octaphenylcyclotetrasiloxane
Conditions | Yield |
---|---|
beim Erhitzen; | |
With sodium hydroxide; ethanol | |
With hydrogenchloride; ethanol | |
In neat (no solvent) decompn. at about 135°C;; | |
With NaOH In ethanol heating of octaphenyl-1,7-dioxy-tetrasiloxane in alc. in presence of traces of NaOH;; |
diphenylsilanediol
acetyl chloride
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
Conditions | Yield |
---|---|
With potassium hydroxide | |
Multi-step reaction with 2 steps 1: concentrated aqueous ammonia 2: acetyl chloride View Scheme | |
Multi-step reaction with 2 steps 1: tert-pentyl alcohol; toluene; water 2: ethanol; aq. NaOH solution View Scheme |
Conditions | Yield |
---|---|
With furan; cyclododecane; dimethyl sulfoxide Irradiation; |
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
D
tert-butyl alcohol
Conditions | Yield |
---|---|
In nonane at 160℃; Rate constant; Kinetics; Thermodynamic data; ΔE(excit.); |
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol for 3h; Heating; | 70 % Chromat. |
With potassium hydroxide In ethanol; toluene Ambient temperature; |
Conditions | Yield |
---|---|
With 1-methyl-1H-imidazole; water In hexane Yield given; |
diphenylsilyl dichloride
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
hydrogenchloride
ethanol
1,1,3,3,5,5,7,7-octaphenyl-1,3,5,7-tetrasiloxane-1,7-diol
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
ethanol
1,1,3,3,5,5,7,7-octaphenyl-1,3,5,7-tetrasiloxane-1,7-diol
A
octaphenylcyclotetrasiloxane
B
1,1,3,3,5,5-hexaphenylcyclotrisiloxane
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 93 percent / water / toluene; 2-methyl-butan-2-ol / 0.17 h / 10 - 12 °C 2: 88 percent Chromat. / 50percent aq. NaOH / ethanol / 0.5 h View Scheme |
octaphenylcyclotetrasiloxane
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diethyl ether; silicon tetrachloride 2: KOH-solution View Scheme | |
Multi-step reaction with 3 steps 1: diethyl ether; silicon tetrachloride 2: concentrated aqueous ammonia 3: acetyl chloride View Scheme | |
Multi-step reaction with 3 steps 1: diethyl ether; silicon tetrachloride 2: diluted KOH-solution 3: acetyl chloride View Scheme |
1,1,3,3-tetraphenyldisiloxane-1,3-diol
A
octaphenylcyclotetrasiloxane
B
Hexaphenyltrisiloxan-1,5-diol
Conditions | Yield |
---|---|
In neat (no solvent) on heating above 200°C;; |
diphenylsilyl dichloride
A
octaphenylcyclotetrasiloxane
B
Hexaphenyltrisiloxan-1,5-diol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2O / water 2: neat (no solvent) View Scheme | |
Multi-step reaction with 3 steps 1: H2O / water 2: not given 3: neat (no solvent) View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene; tert-Amyl alcohol 2: CH3COCl / further solvent(s) View Scheme |
octaphenylcyclotetrasiloxane
A
difluorodiphenylsilane
B
1,3-difluoro-1,1,3,3,-tetraphenyldisiloxane
Conditions | Yield |
---|---|
With sodium tetrafluoroborate at 200℃; for 1.5h; | A n/a B 35% |
octaphenylcyclotetrasiloxane
fullerene-C60
Conditions | Yield |
---|---|
In isopropyl alcohol; toluene for 672h; complex formation; | 19% |
ethanol
chloroform
octaphenylcyclotetrasiloxane
sodium ethanolate
1,1,3,3,5,5,7,7-octaphenyl-1,3,5,7-tetrasiloxane-1,7-diol
octaphenylcyclotetrasiloxane
1,1,3,3,5,5,7,7-octaphenyl-1,3,5,7-tetrasiloxane-1,7-diol
Conditions | Yield |
---|---|
With chloroform; sodium ethanolate | |
With C2H5ONa In ethanol; chloroform treatment of ((C6H5)2SiO)4 in CHCl3 with C2H5ONa in ethanol for a short time; acidifying with dild. CH3COOH;; |
octaphenylcyclotetrasiloxane
cyclohexanol
bis-cyclohexyloxy-diphenyl-silane
Conditions | Yield |
---|---|
With sodium hydroxide |
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