Iridium-Catalyzed Asymmetric Allylic Substitutions with Bulky Amines/Oxidative Double Bond Cleavage - Entry into the Reetz Synthesis of Amino Alcohols
作者:Kai Seehafer、Chandi C. Malakar、Markus Bender、Jianping Qu、Chen Liang、Günter Helmchen
DOI:10.1002/ejoc.201501333
日期:2016.1
Branched allylic amines were prepared by Ir-catalyzed enantioselective allylic aminations with the bulky N-nucleophiles HN(Boc)2 and HNBn2. The products were transformed into N-protected amino aldehydes, which were either reduced or coupled diastereoselectively with organometallic compounds to give vicinal amino alcohols. A formal synthesis of the neurokinin receptor antagonist (+)-L-733060 was carried
支链烯丙胺是通过 Ir 催化的对映选择性烯丙胺与庞大的 N-亲核试剂 HN(Boc)2 和 HNBn2 制备的。将产物转化为 N 保护的氨基醛,它们与有机金属化合物非对映选择性地还原或偶联,得到邻氨基醇。作为应用程序进行了神经激肽受体拮抗剂 (+)-L-733060 的正式合成。