

Pd/Cu-ASSISTED C–S ACTIVATION AND N–H INSERTION: HIGHLY VERSATILE SYNTHESIS OF 2-AMINOPYRIMIDINES FROM 3,4-DIHYDROPYRIMIDINE-2(1H)-THIONES

Abstract
A method for the synthesis of 2-aminopyrimidines from readily available 3,4-dihydropyrimidine-2(1H)-thiones via a palladium-assisted C–S activation and N–H insertion reaction is developed. The process provides an access to a variety of highly diverse 2-aryl(alkyl)aminopyrimidine adducts in good yields.
Keywords
2-aminopyrimidines; Biginelli reaction; C–S activation; N–H insertion
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv