A one pot selective mono N-alkylation of primary amides, thioamides, carbam
ates and ureas has been developed using aromatic and aliphatic aldehydes as
alkylating agents and trifluoroacetic acid I triethylsilane as reagents. A
pplication to an efficient synthesis of a primary amine from the correspond
ing aldehyde via the carbamate intermediate is presented. (C) 1999 Elsevier
Science Ltd. All rights reserved.