

EFFICIENT ONE-STEP SYNTHESIS OF 3-ARYL-2-PYRIDONES FROM 6-ARYL-1,2,4-TRIAZIN-5-ONES

Abstract
An efficient method for the synthesis of substituted 2-pyridones based on the aza-Diels–Alder reaction of 1,2,4-triazin-5-ones and dienophiles, 2,5-norbornadiene and 4-(cyclopent-1-en-1-yl)morpholine, is proposed.
Keywords
2,2'-bipyridine; 2-pyridone; 1,2,4-triazin-5-one; autoclave; aza-Diels–Alder reaction; nucleophilic ipso-substitution.
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv