Facile, efficient synthesis of polyfunctionalized 2-aminoimidazoles via vinyl azides and cyanamide
摘要:
A simple and direct synthesis of 2-aminoimidazoles from vinyl azides and cyanamide was developed. An attractive feature of this protocol is that the desired products are generated in a highly efficient and eco-friendly manner without the use of a catalyst. A plausible mechanism has been proposed. (C) 2014 Elsevier Ltd. All rights reserved.
Synthesis of Polysubstituted 2-Aminoimidazoles via Alkene-Diamination of Guanidine with Conjugated α-Bromoalkenones
作者:Sankar K. Guchhait、Neha Hura、Archana P. Shah
DOI:10.1021/acs.joc.6b03021
日期:2017.3.3
A step-economical access to polysubstituted aminoimidazoles has been accomplished via alkene vicinal C–N bonds formation of 2-bromo-2-alkenones with guanidine avoiding its NH-protection/derivatization prerequisite for electronic modulation. The approach has excellent substrate scope, is amenable to diverse guanidine-containing substrates, and introduces distinctive substitutions/functionalities into
A simple and direct synthesis of 2-aminoimidazoles from vinyl azides and cyanamide was developed. An attractive feature of this protocol is that the desired products are generated in a highly efficient and eco-friendly manner without the use of a catalyst. A plausible mechanism has been proposed. (C) 2014 Elsevier Ltd. All rights reserved.