作者:Jason E. Camp、Dmitrii A. Shabalin、Jay J. Dunsford、Simbarashe Ngwerume、Alexandra R. Saunders、Duncan M. Gill
DOI:10.1055/s-0039-1690832
日期:2020.5
microwave-assisted protocol for the synthesis of disubstituted NH-imidazoles via nucleophilic catalysis is described. The substituted imidazoles are accessed via the intramolecular addition of a variety of amidoxime substrates to activated alkynes followed by a thermally induced rearrangement of the in situ generated O-vinylamidoxime species. The unprotected imidazoles contain an aryl group at the 2-position
描述了一种通过亲核催化合成双取代 NH-咪唑的聚合微波辅助协议。取代的咪唑是通过将各种胺肟底物分子内加成到活化的炔烃上,然后对原位生成的 O-乙烯基胺肟物质进行热诱导重排来获得的。未保护的咪唑在 2 位包含芳基,在 4 位包含酯部分。