Js. Lee et al., Benzotriazol-1-yl alkyl carbonate, a new convenient and inexpensive coupling agent to prepare an active ester for the synthesis of amide, SYN COMMUN, 29(14), 1999, pp. 2547-2557
Benzotriazol-1-yl alkyl carbonate 1 has been found to be a new convenient a
nd inexpensive coupling agent to prepare an active ester 2 for the synthesi
s of an amide 3 in good yield and with high purity.