to produce unisolable allylchromium species which add efficiently to aldehydes or ketones with high degree of stereo- and chemoselectivity. Particularly, high threo selectivity is observed in the reaction of aldehydes and 1-bromo-2-butene and is ascribed to a chair-like six-membered transition state. Simple reduction of allylic and benzylic halides produces biallyls and bibenzyls, while gem-dibromocyclopropanes
Allylcerium(III) compounds, powerful new synthetic reagents. A new stereocontrolled approach to olefins and methylene-interrupted polyenes
作者:Bao Shan Guo、Wendel Doubleday、Theodore Cohen
DOI:10.1021/ja00249a038
日期:1987.7
Synthese en particulier d'octadiene-1,5ol-3 et undecatriene-1,5,8ol-3 a partir de la reaction de sulfures allyliques avec des enaldehydes ou enones en presence d'allyl-cerium
合成这些 en particulier d'octadiene-1,5ol-3 和 undecatriene-1,5,8ol-3 a partir de la reaction desulfes allyliques avec des enaldehydes ou enones en存在 d'allyl-cerium
Reaction of Allylmanganese(II) Reagents with Aldehydes
作者:Yoonmo Ahn、Wendel W. Doubleday、Theodore Cohen
DOI:10.1080/00397919508010786
日期:1995.1
Abstract : The reaction of allylmanganese(II) reagents with aldehydes gives alcohols with high regioselectivity. The allylmanganese(II) reagents are prepared by transmetallation between manganese(II) chloride and allyllithium compounds which are generated from allyl phenyl sulfides by reductive lithiation.
摘要:烯丙基锰(II)试剂与醛反应生成具有高区域选择性的醇。烯丙基锰 (II) 试剂是通过氯化锰 (II) 与烯丙基锂化合物之间的金属转移反应制备的,烯丙基锂化合物是通过还原锂化由烯丙基苯基硫化物生成的。
Alder et al., Justus Liebigs Annalen der Chemie, 1957, vol. 609, p. 1,18
作者:Alder et al.
DOI:——
日期:——
Ahn Yoonmo, Doubleday Wendel W., Cohen Theodore, Synth. Commun, 25 (1995) N 1, S 33-41
作者:Ahn Yoonmo, Doubleday Wendel W., Cohen Theodore