L'hydroboration des enamines et ses applications—III: Reduction des enamines pyrrolidiniques des ceto-3 steroides

作者: J.-J. Barieux , J. Gore

DOI: 10.1016/0040-4020(72)88036-0

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摘要: Resume Le traitement des enamines pyrrolidiniques ceto-3 steroides conduit aux amino-3 avec d'excellents rendements. mecanisme de cette reaction anormale est discute: l'aminoborane resultant l'attaque normale BH3 au niveau du carbone 2 instable a cause d'une interaction diaxiale-1,3 le methyle 19. Cette instabilite provoque une substitution interne groupe BH2 par un ion hydrure.

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