Pd-catalyzed reductive cleavage of N-N bond in dibenzyl-1-alkylhydrazine-1,2-dicarboxylates with PMHS: application to a formal enantioselective synthesis of (R)-sitagliptin

TitlePd-catalyzed reductive cleavage of N-N bond in dibenzyl-1-alkylhydrazine-1,2-dicarboxylates with PMHS: application to a formal enantioselective synthesis of (R)-sitagliptin
Publication TypeJournal Article
Year of Publication2016
AuthorsDey, S, Gadakh, SK, Ahuja, BBhushan, Kamble, SP, Sudalai, A
JournalTetrahedron Letters
Volume57
Issue6
Pagination684-687
Date PublishedFEB
ISSN0040-4039
Keywordsanti-Diabetic, Environmentally benign, Hydrazine, PMHS, Reductive cleavage
Abstract

An environmentally benign approach involving Pd-catalyzed reductive N-N bond cleavage in dibenzyl-1-alkylhydrazine-1,2-dicarboxylates leading to the synthesis of N-(tert-butoxy)carbamates under very mild conditions has been described. PMHS serves as an inexpensive source of hydride in MeOH/deionized H2O medium. This protocol has been successfully applied in the formal synthesis of (R)-sitagliptin, an anti-diabetic drug. (C) 2015 Elsevier Ltd. All rights reserved.

DOI10.1016/j.tetlet.2015.12.116
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)2.347
Divison category: 
Chemical Engineering & Process Development