One-pot stibine modified Co2(CO)8 catalyzed reductive N-alkylation of primary amides with carbonyl compounds
作者:Laura Rubio-Pérez、Pankaj Sharma、F. Javier Pérez-Flores、Luis Velasco、J. Luis. Arias、Armando Cabrera
DOI:10.1016/j.tet.2012.01.038
日期:2012.3
A one-pot stibine modified Co-2(CO)(8) homogeneous catalytic reductive N-alkylation of primary amides using aldehydes/ketones as alkylating agents, is reported. Good to excellent yields of a wide range of secondary amides are obtained (up to 97%) under relative mild conditions. (C) 2012 Elsevier Ltd. All rights reserved.
Direct Synthesis of Amides by Acceptorless Dehydrogenative Coupling of Benzyl Alcohols and Ammonia Catalyzed by a Manganese Pincer Complex: Unexpected Crucial Role of Base
Amide synthesis is one of the most important transformations in chemistry and biology. The direct use of ammonia for the incorporation of nitrogen functionalities in organic molecules is an attractive and environmentally benign method. We present here a new synthesis of amides by acceptorless dehydrogenativecoupling of benzyl alcohols and ammonia. The reaction is catalyzed by a pincercomplex of earth-abundant