Enantioselective synthesis of β-arylbutenolides via palladium(0) catalysed asymmetric coupling cyclisation reaction of racemic allenic carboxylic acids with aryl iodides
作者:Shengming Ma、Zhangjie Shi、Shulin Wu
DOI:10.1016/s0957-4166(01)00046-5
日期:2001.2
Bis(oxazoline) 2c was used as a chiral ligand in the Pd(0) catalysed enantioselective coupling cyclisation of 2.3-allenoic acids with aryl iodides affording butenolides: in reasonable fields and with e.e.s of up to 53%. (C) 2001 Elsevier Science Ltd. All rights reserved.