CHLOROTRIBENZYLSILANE
- CAS No.
- 18740-59-5
- Chemical Name:
- CHLOROTRIBENZYLSILANE
- Synonyms
- CHLOROTRIBENZYLSILANE;TRIBENZYL CHLOROSILANE;TRIBENZYLSILYL CHLORIDE;tribenzylchlorosilicane;Tribenzylchlorosilane 97%;chlorotris(phenylmethyl)-silan;Chlorotris(phenylmethyl)silane;Tribenzylchlorosilane, Tribenzylsilyl chloride;Benzene, 1,1',1''-[(chlorosilylidyne)tris(methylene)]tris-
- CBNumber:
- CB1337305
- Molecular Formula:
- C21H21ClSi
- Molecular Weight:
- 336.93
- MOL File:
- 18740-59-5.mol
- MSDS File:
- SDS
- Modify Date:
- 2022/12/21 16:56:50
| Melting point | 139-142 °C(lit.) |
|---|---|
| Boiling point | 437.9±14.0 °C(Predicted) |
| Density | 1.096±0.06 g/cm3(Predicted) |
| solubility | sparingly sol cold petroleum ether; moderately sol hot petroleum ether; sol ether. |
| EPA Substance Registry System | Silane, chlorotris(phenylmethyl)- (18740-59-5) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|---|---|
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P280-P305+P351+P338-P310 |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3261 8/PG 2 |
| WGK Germany | 3 |
| F | 10-21 |
| HazardClass | 8 |
| PackingGroup | II |
CHLOROTRIBENZYLSILANE Chemical Properties,Uses,Production
Physical properties
mp 141–142 °C;1,2 a somewhat higher value (143–145 °C) is cited in the Aldrich catalog.
Uses
Tribenzylchlorosilane is widely used as reagent for alcohol protection.
Preparation
It is prepared by reaction of benzylmagnesium chloride with SiCl4 in ether; separation from mono- and dibenzylated chlorosilane byproducts is then accomplished by fractional distillation (boiling range 300–360 °C/100 mmHg). Other preparations involve the chlorination of tribenzylsilane using Cl2 or an acyl chloride. No yields are reported for any of the above preparative procedures.
Purification Methods
It is recrystallised three times from pet ether (in slender colourless needles, m 141o). It is sparingly soluble in pet ether but is soluble in Et2O. It does not fume in moist air but is decomposed by H2O to give tribenzyl silanol m 106o (from pet ether). [Robinson & Kipping J Chem Soc 93 439 1908, Jenkins & Post J Org Chem 15 556 1950, Beilstein 16 H 906, 16 IV 1498.]
CHLOROTRIBENZYLSILANE Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | China | 16221 | 58 | Inquiry |
| Henan Alfa Chemical Co., Ltd | +8618339805032 | China | 13036 | 58 | Inquiry |
| LEAP CHEM CO., LTD. | +86-852-30606658 | China | 24738 | 58 | Inquiry |
| ShenZhen Trendseen Biological Technology Co.,Ltd. | 13417589054 | China | 11681 | 58 | Inquiry |
| Aladdin Scientific | +1-+1(833)-552-7181 | United States | 52927 | 58 | Inquiry |
| Shanghai Aladdin Biochemical Technology Co.,Ltd. | +86-18521732826 | China | 48467 | 58 | Inquiry |
| Shanghai Qiming New Material Co. LTD | 021-36010885 13661599081 | China | 1506 | 58 | Inquiry |
| Shaanxi Dideu Newmaterial Co., Ltd. | 029-63373950 15353716720 | China | 10011 | 58 | Inquiry |
| Alfa Chemistry | 1-516-6625404 | United States | 9171 | 60 | Inquiry |
| Henan Alfachem Co.,Ltd. | 0371-0371-55051623 18137891487 | China | 9828 | 58 | Inquiry |
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