4,5-DIHYDRO-1,2,4-TRIAZIN-6(1H)-ONES

Abstract

The present microreview highlights key strategies for the synthesis of 4,5-dihydro-1,2,4-triazin-6(1H)-ones reported up to date. The discussed methods cover (4+2) condensations of both 1,2- and 1,4-binucleophiles, (3+3) and (5+1) annulations, and miscellaneous methods.