Organotin monohydrides were brought into reaction with a variety of mono- and disubstituted ethynes. The identity of the resulting products was established by means of elementary analysis, infrared absorption spectroscopy and proton magnetic resonance spectroscopy.
New functional allylic lithium reagents: gem-dialkoxyallyllithium reagents: a useful route to β-silyl- and β-stannylpropionate esters
作者:Dietmar Seyferth、Robert E. Mammarella、Helmut A. Klein
DOI:10.1016/s0022-328x(00)90330-9
日期:1980.7
-95°C results in formation of gem-dialkoxyallyllithium reagents, Li[CH2CHC(OR)2]. These react with organosilicon and organotin chlorides to give ketene acetals, R3SiCH2CHC(OR)2 and R3SnCH2CHC(OR)2. The acid hydrolysis of these products produces β-substituted propionic acid esters, R3SiCH2CH2CO2R and R3SnCH2CH2CO2R. Reactions of these lithium reagents with allyl bromide gave esters of 5-hexonoic acid,
仲丁基锂与反应丙烯醛二烷基缩醛的THF或THF / ET 2 O /戊烷在-95℃下导致形成的宝石-dialkoxyallyllithium试剂,锂[CH 2 CHC(OR)2 ]。这些反应用有机硅和有机锡氯化物,得到烯酮缩醛,R 3 SICH 2 CHC(OR)2和R 3 SNCH 2 CHC(OR)2。这些产物的酸水解产生β-取代的丙酸酯,R 3 SiCH 2 CH 2 CO 2 R和R 3 SnCH 2 CH 2CO 2这些锂试剂与烯丙基溴反应R.得到5- hexonoic酸的酯,CH 2 CH(CH 2)3 CO 2 R(R = ME等)。
Tetrasubstituted organotin compounds
申请人:Uniroyal, Inc.
公开号:US04260552A1
公开(公告)日:1981-04-07
Tetrasubstituted organotin compounds, which are useful for controlling insects and other pests and which also exhibit herbicidal activity, are disclosed. Many of these organotin compounds are new compounds.