Organocatalytic [4+1]-annulation approach for the synthesis of densely functionalized pyrazolidine carboxylates

TitleOrganocatalytic [4+1]-annulation approach for the synthesis of densely functionalized pyrazolidine carboxylates
Publication TypeJournal Article
Year of Publication2015
AuthorsLalwani, KG, Aher, RD, Sudalai, A
JournalRSC Advances
Volume5
Issue80
Pagination65554-65559
Date PublishedJUL
ISSN2046-2069
Abstract

A novel one-pot [4+1]-annulation process for the asymmetric synthesis of densely functionalized pyrazolidine carboxylates is described. The in situ generated gamma-hydrazino-alpha,beta-unsaturated ester obtained via proline catalysis acts as a four-atom component, and Corey's sulfur ylide or ethyl bromoacetate acts as a one-atom carbon source to construct pyrazolidine carboxylate units in a highly enantio- and diastereoselective fashion.

DOI10.1039/c5ra09583b
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)3.289
Divison category: 
Chemical Engineering & Process Development