Highly efficient chemoselective N-tert butoxycarbonylation of aliphatic/aromatic/heterocyclic amines using diphenylglycoluril as organocatalyst

TitleHighly efficient chemoselective N-tert butoxycarbonylation of aliphatic/aromatic/heterocyclic amines using diphenylglycoluril as organocatalyst
Publication TypeJournal Article
Year of Publication2020
AuthorsAwasthi, A, Mukherjee, A, Singh, M, Rathee, G, Vanka, K, Chandra, R
JournalTetrahedron
Volume76
Issue23
Pagination131223
Date PublishedJUN
Type of ArticleArticle
ISSN0040-4020
KeywordsDFT studies, Diphenylglycouril, N-tert butoxycarbonylation, organocatalyst, Proton shuttle mechanism
Abstract

An efficient approach for the Chemoselective N-tert-butoxycarbonylation of a variety of amines using diphenylglycoluril as organocatalyst has been described. For the first time, a plausible mechanism for the N-tert-butoxycarbonylation has been proposed using density functional theory (DFT) calculations supported by NMR studies. The reusability of the organocatalyst and observation of the desired N-Boc protected amines being formed without the formation of side products like urea, oxazolidinone, isocyanate, and N, N-di-Boc derivatives makes the present protocol desirable. (C) 2020 Elsevier Ltd. All rights reserved.

DOI10.1016/j.tet.2020.131223
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

2.233

Divison category: 
Physical and Materials Chemistry

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