Ru-Centered coordination complexes as a new phase transfer catalyst for alkylation of enolates and Michael additions
作者:Dimitrios Tzalis、Paul Knochel
DOI:10.1016/s0040-4039(99)00587-0
日期:1999.5
A novel phasetransfercatalysis based on a Ru(II)-polypyridyl complex 1 allows the fast alkylation of enolates and Michael additions under very mild conditions.
Enantiomeric enrichment of α-amino acid derivatives: recrystallization of N-Fmoc α-amino acid tert-butyl esters
作者:Martin J O'Donnell、Francisca Delgado
DOI:10.1016/s0040-4020(01)00554-3
日期:2001.7
The optical purity of products derived from enantioselective reactions of the benzophenone imine of glycine tert-butyl esters can often be improved by conversion to the N-Fmoc alpha -amino acid tert-butyl esters followed by simple recrystallization. (C) 2001 Elsevier Science Ltd. All rights reserved.