Skeletal diversity via Pd(0) catalysed three-component cascades of allene and halides or triflates with protected hydroxylamines and formamide
摘要:
The reactions of allene gas (1 atm) and of 1,1-dimethylallene with a range protected hydroxylamines and formamide with aryl/heteroaryl iodides, bromides and triflates under Pd(0) catalysis lead to a skeletally diverse range of products in good yield. The cascades tolerate both electron withdrawing and electron donating substrates and 1,1-dimethylallene reacts regioselectively in all cases. (C) 2012 Elsevier Ltd. All rights reserved.
Skeletal diversity via Pd(0) catalysed three-component cascades of allene and halides or triflates with protected hydroxylamines and formamide
作者:Elghareeb E. Elboray、Chuanjun Gao、Ronald Grigg
DOI:10.1016/j.tet.2012.01.099
日期:2012.4
The reactions of allene gas (1 atm) and of 1,1-dimethylallene with a range protected hydroxylamines and formamide with aryl/heteroaryl iodides, bromides and triflates under Pd(0) catalysis lead to a skeletally diverse range of products in good yield. The cascades tolerate both electron withdrawing and electron donating substrates and 1,1-dimethylallene reacts regioselectively in all cases. (C) 2012 Elsevier Ltd. All rights reserved.