作者:Kentaro Hojoh、Yoshinori Shido、Kazunori Nagao、Seiji Mori、Hirohisa Ohmiya、Masaya Sawamura
DOI:10.1016/j.tet.2015.05.048
日期:2015.9
We have presented full details of our work on alkylboranes, which we have introduced as new reagents for copper-catalyzed SN2′-type enantioselective allylic substitutions. The copper catalysis delivered enantioenriched chiral products containing tertiary or quaternary carbon stereogenic centers branched with functionalized sp3-alkyl groups. The wide availability of alkylboranes via the established
我们已经介绍了我们在烷基硼烷上的全部工作细节,我们已将其引入作为铜催化的S N 2'型对映选择性烯丙基取代的新试剂。铜催化递送了富含对映体的手性产物,该手性产物包含带有官能化的sp 3-烷基的叔碳或季碳立体异构中心。通过已建立的烯烃加氢硼化反应,烷基硼烷的广泛可用性是这些转化的吸引人的特征。基板中可以容忍各种官能团。提出了一种通过烯丙基氯底物加成-消除中性烷基铜(I)物种的反应途径。