摘要:
t-Butyl N,N-dibromocarbamate, easily obtained by bromination of t-butyl carbamate in aqueous potassium carbonate, reacts smoothly with a variety of terminal alkenes to afford the corresponding beta -bromo-N-Boc-amines upon reduction with aqueous sodium sulphite. Immediate deprotection of N-Boc-amines with gaseous HCl yields beta -bromoamine hydrochlorides in good yields. (C) 2001 Elsevier Science Ltd. All rights reserved.