通过三个步骤完成反式环烷基胺的非对映和对映选择性合成:(1)通过动态动力学拆分HCO 2 H / Et 3 N作为双环和单环α-取代的酮进行不对称转移氢化。氢源和基于TsDPEN -钌(II)催化剂,(2)的亲核的羟基向所得的叠氮取代的顺式改性Mitsunobu条件下使用-cycloalkanols二苯基磷叠氮化物,和(3)还原的反式-叠氮化物中间体与的LiAlH 4的PPh 3 / H 2 O达到所需目标。
Phase transfer catalysis and homogeneous reactions with β-oxyalkyl radicals from organomercurials
作者:José Barluenga、Joaquín López-Prado、Pedro J. Campos、Gregorio Asensio
DOI:10.1016/s0040-4020(01)82459-5
日期:1983.1
β-hydroxyalkyl radicals generated by sodium borohydride reduction of oxymercurials react with electron deficient olefins to give addition compounds in an homogeneous process. Heterogeneous reactions are also successful in the presence of catalytic amounts of surfactants and provide a superior method for the “one pot” reductive alkylation of oxymercurials.