Acylation of extended enolate ions from α-phenylthio (PhS-)crotonate esters
作者:John Durman、Stuart Warren
DOI:10.1016/s0040-4039(00)98865-8
日期:1985.1
C-Acylation, like alkylation, occurs at the α opposition of the title compounds to give unsaturated keto-esters from which the PhS group may be removed
Extended enolate ions from γ-phenylthio-crotonate esters
作者:Peter Brownbridge、Paul G. Hunt、Stuart Warren
DOI:10.1016/s0040-4039(00)86279-6
日期:1983.1
Substituted γ-phenylthio-crotonate esters (7) can be made by [1,2] and [1,3] PhS shifts: they form extended enolate anions which react with electrophiles at the carbon atom α to the carbonyl group and γ to sulphur.
The reactions of phenolic reagents with α-bromo Michael acceptors in the K2CO3-acetone system. A stereospecific AdSNE process.
作者:Vittorio Rosnati、Antonio Saba、Aldo Salimbeni
DOI:10.1016/0040-4039(81)80178-5
日期:1981.1
α-bromo Michael acceptors undergo ipso-substitution by phenol or benzenethiol in the K2CO3-acetone system, the reaction originating the (Z) isomers, via a stereospecific AdSNE process.
α-溴Michael受体在K 2 CO 3-丙酮体系中通过苯酚或苯硫酚进行ipso取代,该反应通过立体特异性Ad SN E过程引发(Z)异构体。