Exploiting a novel size exclusion phenomenon for enantioselective acid/base cascade catalysis
作者:Michael E. Muratore、Lei Shi、Adam W. Pilling、R. Ian Storer、Darren J. Dixon
DOI:10.1039/c2cc32258g
日期:——
A novel size exclusion phenomenon between PS-BEMP and sterically bulky BPAs, has been discovered and exploited in a one-pot base-catalysed Michael addition/acid-catalysed enantioselective N-acyliminium cyclisation cascade, allowing the preparation of structurally complex β-carbolines with moderate to good enantiocontrol.