Synthesis of Benzyl Amines via Copper-Catalyzed Enantioselective Aza-Friedel–Crafts Addition of Phenols to <i>N</i>-Sulfonyl Aldimines
作者:Jonathan M. Shikora、Sherry R. Chemler
DOI:10.1021/acs.orglett.8b00282
日期:2018.4.20
copper-catalyzed enantioselective aza-Freidel-Crafts reaction between phenols and N-sulfonyl aldimines that provides chiral secondary benzylamines in good to excellent yields and excellent enantioselectivities (up to 99% ee) is disclosed. In particular, excellent scope with alkylimines was observed for the first time. The synthetic utility of the products was demonstrated in the first enantioselective synthesis
公开了一种新的铜催化的酚与N-磺酰基醛亚胺之间的铜对映选择性氮杂-Freidel-Crafts反应,其提供手性仲苄胺,具有良好至优异的收率和优异的对映选择性(至多99%ee)。特别地,首次观察到烷基亚胺具有极好的范围。该产品的合成效用在双重orexin受体拮抗剂的首次对映选择性合成中得到了证明,该化合物是一种与双邻位官能化的芳烃相邻的含胺立体中心的化合物。