Straightforward Access to the Nitric Oxide Donor Azasydnone Scaffold by Cascade Reactions of Amines
作者:Egor S. Zhilin、Dmitry M. Bystrov、Ivan V. Ananyev、Leonid L. Fershtat、Nina N. Makhova
DOI:10.1002/chem.201903526
日期:2019.11.13
construction strategy involves a diazotization/azo coupling/elimination/double rearrangement cascade sequence of readily available amines. The current protocol enables the generation of a diverse array of azasydnones, including previously hardly accessible heteroaryl substituted azasydnones (25 examples, 70-97 % yield) with a good functional group tolerance under very mild conditions. Preliminary NO-releasing