CAS号:1066-54-2
品名:三甲基乙炔基硅Ethynyltrimethylsilane
中文别名:三甲硅基乙炔;三甲基硅乙炔;三甲基硅基乙炔;乙炔基三甲基硅烷;(三甲基硅烷基)乙炔;(三甲基甲硅烷基)乙炔;
英文别名:TriMethylsilylacetylene;ethynyl(trimethyl)silane;(Trimethylsilyl)Acetylene;
分子式:C5H10Si
分子量:98.2184
精确质量:98.0552
Psa:0.0
BRN号:906752
EINECS号:213-919-9
MDL号:MFCD00008569
外观与性状:透明无色液体
密度:0.695g/mLat 25°C(lit.)
沸点:53°C(lit.)
熔点:&>0°C
闪点:&<−30°F
折射率:n20/D 1.388(lit.)
稳定性:Materials containing similar functional groups can decompose at elevated temperatures. Has not been fully evaluated.
储存条件:2-8ºC
蒸汽压:273mmHg at 25°C
安全说明:S16-S26-S36
危险类别码:R11; R36/37/38
WGK Germany:-
海关编码:29310095
危险品运输编码:UN 1993 3/PG 2
危险类别:3
包装等级:II
危险品标志:F
信号词:Danger
危险性防范说明:P210; P261; P305 + P351 + P338
危险标志:GHS02, GHS07
危险性描述:H225; H315; H319; H335
简介:Trimethylsilylacetyleneisanacetylenemoleculeprotectedononeendbythetrimethylsilylgroup.Itispopularlyusedinalkynylations,e.g.theSonogashirareaction.Afterdesilylation(e.g.withTBAF),theethynylgroupisintroduced.Usingaprotectedalkyne,asopposedtoacetylenegas,preventsfurther(undesired)couplingreactionsandalsohasthebenefitofbeingaliquid.
用途:硅基保护基,用于通过对乙炔二氮化合物的1,3-两极环加成合成吡唑,镍催化饿和苄腈偶联反应的底物。
有机砌块