Tin(II)-mediated allylation. Asymmetric induction with a chiral tin(II) alkoxide
作者:Jacques Augé、Guy Bourleaux
DOI:10.1016/0022-328x(89)80081-6
日期:1989.11
In a study of tin-mediated allylation some tin(II) species including tin(II) halides, amides, acetonates, and alkoxides, have been shown to undergo oxidative addition of allyl halide in the presence of benzaldehyde to give the corresponding homoallyl alcohol. The first preparation of a chiral tin(II) alkoxide, tin(II) diethyltartrate is described; its 119Sn NMR spectrum exhibits two signals at high
在锡介导的烯丙基化的研究中,一些锡(II)物质,包括锡(II)卤化物、酰胺、丙酮化物和醇盐,已被证明在苯甲醛存在下会发生烯丙基卤化物的氧化加成,生成相应的高烯丙醇。描述了手性醇锡(II)二乙基酒石酸锡(II)的第一种制备方法;其119 Sn NMR 谱在高场显示出两个信号,与反式二聚体结构一致。这种新试剂在苯甲醛存在下与 1,3-氯碘丙烯发生氧化加成反应,得到具有光学活性的苯基乙烯基环氧乙烷;这代表了首次从醛对映选择性制备顺式和反式乙烯基环氧乙烷。
Indium-Mediated Reductive Elimination of Halohydrins
作者:Sangwon Cho、Soyeon Kang、Gyochang Keum、Soon Bang Kang、So-Yeop Han、Youseung Kim
DOI:10.1021/jo0262964
日期:2003.1.1
Olefin formation has been successfully carried out by reductive elimination reactions of halohydrins with Pd(PPh3)(4)/In/InCl3 in aqueous media.