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三甲基乙炔基硅

英文名: Ethynyltrimethylsilane

CAS: 1066-54-2      分子式: C5H10Si

分子量: 98.21840

别名:


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描述

Trimethylsilylacetylene is an acetylene molecule protected on one end by the trimethylsilyl group. It is popularly used in alkynylations, e.g. the Sonogashira reaction. After desilylation (e.g. with TBAF), the ethynyl group is introduced. Using a protected alkyne, as opposed to acetylene gas, prevents further (undesired) coupling reactions and also has the benefit of being a liquid. This compound is commercially available. It may also be prepared in a manner similar to other silyl compounds: deprotonation of acetylene with a Grignard reagent, followed by reaction with trimethylsilyl chloride.

基本信息
英文名:
Ethynyltrimethylsilane
CAS号.:
1066-54-2
别名:
Ethynyltrimethylsilane TriMethylsilylacetylene ethynyl(trimethyl)silane (Trimethylsilyl)Acetylene
分子式:
C5H10Si
分子量:
98.21840
PSA:
LogP:
1.49700
物化属性
外观:
Transparent colorless liquid
密度:
0.695 g/mL at 25 °C(lit.)
熔点:
>0°C
沸点:
53 °C(lit.)
闪点:
<−30 °F
储存条件:
2-8ºC
安全信息
符号:
GHS02; GHS07
危害声明:
H225; H315; H319; H335
警示性声明:
P210; P261; P305 + P351 + P338
海关编码:
29310095
危险类别码:
R11; R36/37/38
安全说明:
S16-S26-S36
危险品标志:
F
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