Chemistry of silyl thioketones. Part 10. Synthesis and reactivity of α-silyl vinyl sulfides
摘要:
Aliphatic silyl thioketones containing an alpha-hydrogen atom undergo enethiolization to Z-alpha-silyl enethiols 2. Compounds 2 react with a variety of halides R(3)X to give open-chain alpha-silyl vinyl sulfides 3. Protiodesilylation of 3 was achieved upon treatment with fluoride ion to give vinyl sulfides 4. Reaction of 3 with Grignard reagents, in the presence of an appropriate nickel catalyst, results in a series of vinylsilanes 5 with a specific geometry.
Fleming, Ian; Mwaniki, Joseph M., Journal of the Chemical Society. Perkin transactions I, 1998, # 7, p. 1237 - 1247
作者:Fleming, Ian、Mwaniki, Joseph M.
DOI:——
日期:——
SATO, SUSUMU;MATSUDA, ISAMU;IZUMI, YUSUKE, J. ORGANOMET. CHEM., 344,(1988) N 1, 71-88
作者:SATO, SUSUMU、MATSUDA, ISAMU、IZUMI, YUSUKE
DOI:——
日期:——
A regiodefined synthesis of α-trimethylsilyl ketones catalyzed by rhodium(I) hydride complex
作者:Susumu Sato、Isamu Matsuda、Yusuke Izumi
DOI:10.1016/0022-328x(88)80214-6
日期:1988.4
Regiodefined synthesis of α-trimethylsilyl ketones is attained by one of three different routes: isomerization of β-trimethylsilyl allyl alcohols (route A), isomerization of β′-trimethylsilyl allyl alcohols (route B), and dehydrogenation of β-trimethylsilyl alcohols via transfer hydrogenation to α,β-enones (route C). All of these procedures are catalyzed efficiently by HRh(PPh3)4 at about 100 °C. Route
Aliphatic silyl thioketones containing an alpha-hydrogen atom undergo enethiolization to Z-alpha-silyl enethiols 2. Compounds 2 react with a variety of halides R(3)X to give open-chain alpha-silyl vinyl sulfides 3. Protiodesilylation of 3 was achieved upon treatment with fluoride ion to give vinyl sulfides 4. Reaction of 3 with Grignard reagents, in the presence of an appropriate nickel catalyst, results in a series of vinylsilanes 5 with a specific geometry.