A Facile and Expedient Route to Allyl and Propargyl Amines Using <b><i>N</i></b>-(α-Benzotriazolylalkyl)amines as Stabilized Iminium Salts
作者:Alan Katritzky、Satheesh Nair、Guofang Qiu
DOI:10.1055/s-2002-19801
日期:——
N-(α-Benzotriazolylalkyl)amines 1a-g serve as stabilized iminium salts for the preparation of allylamines 3a-i in 82-94% yield in two steps starting from benzotriazole, an amine, an aldehyde, and the corresponding vinyl Grignard. Propargylamines 7a-e were also prepared in good yields following the same approach using propargyl Grignard reagents.
Aminoalkylation of nitriles by iminium ions generated in situ
作者:Alan R. Katritzky、Ashraf A.A. Abdel-Fattah、Peter J. Steel
DOI:10.1016/j.tetlet.2005.12.059
日期:2006.2
Aminoalkylation of a series of primary and secondary nitriles with N-(alpha-aminoalkyl)benzotriazoles 1 (derived from a variety of secondary amines and aldehydes) proceeds smoothly providing the corresponding beta-aminoalkyl nitriles 5a-j in 66-97% yields. (c) 2005 Elsevier Ltd. All rights reserved.