2-Naphthol as a powerful chromophore for the configurational assignment of carboxylic acid groups via the CD exciton chirality method
作者:Michaela Hartl、Hans-Ulrich Humpf
DOI:10.1016/s0957-4166(00)00116-6
日期:2000.5
A novel approach for the stereochemical assignment of carboxylic acid groups via the circular dichroism (CD) exciton chirality method using the 2-naphthyl chromophore is described. Direct esterification of carboxyl groups with 2-naphthol was effectively achieved with the employment of N,N-bis[2-oxo-3-oxazolidinyl]phosphorodiamidic chloride as the activating reagent. The method was tested with several model compounds, including both cyclic and acyclic dicarboxylic acids, and also applied to the natural product abietic acid. (C) 2000 Elsevier Science Ltd. All rights reserved.