Regiospecific Synthesis of α-Diones, α,α-Dialkoxyketones and α-Alkoxy-α-sulfenylated Ketones
作者:Kourosch Abbaspour Tehrani、Marc Boeykens、Vladimir I. Tyvorskii、Oleg Kulinkovich、Norbert De Kimpe
DOI:10.1016/s0040-4020(00)00604-9
日期:2000.8
A convenient synthesis of α-diones and their monoprotected acetals, i.e. α-ketoacetals, was developed by mercury induced solvolysis of regiospecifically formed α-chloro-α-(alkylthio)ketones. Analogously, α-alkoxy-α-sulfenylated ketones were formed when reacting α-chloro-α-sulfenylated ketones with an alkaline alcoholic medium. α-Alkoxy-α-sulfenylated ketones themselves could be transformed into α-diones
Abstract Efficient access to thermodynamically favoured silyl enol ethers deriving from α,α′-dienolizable ketones was produced via easy-made NEt3HCl-mediated isomerization of a regioisomeric mixture of O-silylated products. † deceased on 7 may 1997 § Present adress: Laboratoire de Synthese Organique, associe au CNRS, Universite du Maine, Avenue Olivier Messiaen, B.P. 9 F-72085 Le Mans (France)
摘要 通过易于制备的 NEt3HCl 介导的 O-硅烷化产物的区域异构混合物的异构化,可以有效地获得源自 α,α'-可二烯醇化酮的热力学有利的甲硅烷基烯醇醚。† 1997 年 5 月 7 日逝世 § 现地址:Laboratoire de Synthese Organique, associe au CNRS, Universite du Maine, Avenue Olivier Messiaen, BP 9 F-72085 Le Mans (France)
Kimmelma, Reijo; Taskinen, Esko, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1987, vol. 41, # 4, p. 271 - 277
作者:Kimmelma, Reijo、Taskinen, Esko
DOI:——
日期:——
Thiel et al., Justus Liebigs Annalen der Chemie, 1958, vol. 613, p. 128,134