Experimental and theoretical study of the 1,3-dipolar cycloaddition between d-glyceraldehyde nitrones and acrylates. Diastereoselective approach to 4-hydroxy pyroglutamic acid derivatives
作者:Pedro Merino、Juan A. Mates、Julia Revuelta、Tomas Tejero、Ugo Chiacchio、Giovanni Romeo、Daniela Iannazzo、Roberto Romeo
DOI:10.1016/s0957-4166(02)00088-5
日期:2002.2
The 1,3-dipolar cycloaddition reactions of five d-glyceraldehyde nitrones with alkyl acrylates and Oppolzer'ssultam acrylamide have been studied in detail, the study including double chiral induction experiments. A complete theoretical study of the reaction has also been carried out using density functional methods (B3LYP/6-31G*) in which both ortho and meta channels leading to 3,5- and 3,4-disubstituted