Halomethyl—metal compounds XXXVIII. Reactions of phenyl(trihalomethyl)mercury compounds with bis(trimethylsilyl)- and bis(trimethylgermyl)mercury☆☆☆

摘要: The reaction of phenyl(bromodichloromethyl)mercury-derived dichlorocarbene with bis(trimethylsilyl)mercury in benzene at 80° gave as principal products trimethyl(trichlorovinyl)silane, trimethylchlorosilane, metallic mercury and phenylmercuric bromide. An analogous bis(trimethylgermyl)mercury trimethyl(trichlorovinyl)germane trimethylchlorogermane. same reactions were found to occur between phenyl(dibromochloromethyl)- phenyl(tribromomethyl)mercury bis(trimethylsilyl)mercury, but the yields (trihalovinyl)silanes, Me3SiCClCClBr Me3SiCBrCBr2 respectively, much lower. Experimental evidence was gathered which indicated that these proceed via dihalocarbene insertion into Group IV element-to-mercury bond followed by another CX2 newly formed HgC Me3MCX2Hg intermediate subsequent β-elimination HgX from Me3MCX2CX2Hg species thus formed. Among presented finding PhHgCCl2Br-derived Me3SiCCl2Hg compounds gives Me3SiCClCCl2.