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Trityl Isocyanide as a Mechanistic Probe in Multicomponent Chemistry: Walking the Line between Ugi- and Strecker-type Reactions.

Authors :
Cioc RC
Preschel HD
van der Heijden G
Ruijter E
Orru RV
Source :
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2016 Jun 01; Vol. 22 (23), pp. 7837-42. Date of Electronic Publication: 2016 Apr 26.
Publication Year :
2016

Abstract

Herein, we describe the versatile application of triphenylmethyl (trityl) isocyanide in multicomponent chemistry. This reagent can be employed as a cyanide source in the Strecker reaction and as convertible isocyanide in the preparation of N-acyl amino acids by Ugi 4CR/detritylation and free imidazo[1,2-a]pyridin-3-amines by a Groebke-Blackburn-Bienaymé 3CR condensation/deprotection protocol. The mechanisms of these three classical MCRs intersect at the common N-trityl nitrilium ion intermediate, whose predictable reactivity can be exploited towards chemoselective transformations.<br /> (© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Details

Language :
English
ISSN :
1521-3765
Volume :
22
Issue :
23
Database :
MEDLINE
Journal :
Chemistry (Weinheim an der Bergstrasse, Germany)
Publication Type :
Academic Journal
Accession number :
27112103
Full Text :
https://doi.org/10.1002/chem.201600285