Stereospecific syntheses and reactions of allyl- and allenyl-silanes
作者:Ian Fleming、Nicholas K. Terrett
DOI:10.1016/0022-328x(84)85136-0
日期:1984.3
The stereospecifically anti synthesis of allyl- and allenyl-silanes by the reaction of a silylcuprate reagent with allyl and propargyl acetates is described. The SE2′ reactions of these silanes with various electrophiles are shown to proceed with predominantly anti stereoselectivity, offset to a greater or lesser extent by other steric factors.
描述了通过甲硅烷基杯酸酯试剂与乙酸烯丙酯和炔丙基乙酸酯反应的烯丙基硅烷和烯丙基硅烷的立体有择抗合成。这些硅烷与各种亲电试剂的S E 2'反应显示出主要具有反立体选择性,但会被其他空间因素或多或少地抵消。
Palladium-catalyzed asymmetric synthesis of axially chiral molecules
作者:J.C. Fiaud、J.Y. Legros
DOI:10.1016/0022-328x(89)87300-0
日期:1989.7
The asymmetricsynthesis of chiral 3-alkylidene bicyclo[3.3.0]octane and 4-substituted 1-alkylidene cyclohexane systems has been carried out (in up to 40% ee) by the palladium-catalyzed reaction of allylic acetates with sodium dimethyl malonate or morpholine.
The stereochemistry of some SE2′ reactions of allyl- and allenylsilanes
作者:Ian Fleming、Nicholas K Terrett
DOI:10.1016/s0040-4039(00)88286-6
日期:1983.1
The SE2′ reactions of 1 and 2 with a range of electrophiles are predominantly anti in the allylsilane portion of the molecule, but this is offset, to a greater or lesser extent, by axial or equatorial preferences in the ring system.
1和2与一定范围的亲电试剂的S E 2'反应在分子的烯丙基硅烷部分中主要是抗反应的,但这在环系统中的轴向或赤道偏倚或多或少地被抵消了。