A base-mediated procedure for the amidation of unactivated esters with aminoalcohols is reported. Optimization and exemplification of the catalytic process are described, furnishing products in 40–100% isolated yield.
Amidation of Esters with Amino Alcohols Using Organobase Catalysis
作者:Nicola Caldwell、Peter S. Campbell、Craig Jamieson、Frances Potjewyd、Iain Simpson、Allan J. B. Watson
DOI:10.1021/jo501929c
日期:2014.10.3
the base-mediated amidation of unactivated esters with amino alcohol derivatives is reported. Investigations into mechanistic aspects of the process indicate that the reaction involves an initial transesterification, followed by an intramolecular rearrangement. The reaction is highly general in nature and can be extended to include the synthesis of oxazolidinone systems through use of dimethyl carbonate
CARBOXYLIC ACID DERIVATIVES AND ADHESION MOLECULE INHIBITORS CONTAINING THE SAME AS THE ACTIVE INGREDIENT
申请人:TORAY INDUSTRIES, INC.
公开号:EP1209147A1
公开(公告)日:2002-05-29
Prevention or therapy of inflammatory diseases caused by invasion of leukocytes such as monocytes, lymphocytes and eosinophils, by providing a substance which inhibits cell adhesion via an adhesion molecule, especially adhesion molecule VLA-4, is disclosed. A group of carboxylic acid derivatives represented by, for example,
and adhesion molecule inhibitors comprising the same as an effective ingredient were provided.