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1 INTRODUCTION Substituted 1,2,4-triazines represent an important class of nitrogen-containing heterocycles. The 1,2, 4-triazine core is a versatile synthetic platform to access a wide range of condensed heterocyclic ring systems via intramolecular Diels-Alder reactions with a vast array of dienophiles[1~5]. In addition, 1,2, 4-triazines have been associated with diverse activi- ties such as antihypertension and inhibition of pla- telets[6] and antiinflammatory[7], and been a key com- po… 相似文献
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Synthesis and Crystal Structure of 3-Phenyi- 6-(4-methylphenyi)-1,2,4-triazolo[4,3-b]-1,2,4-triazine
1 INTRODUCTION The fused heterocycles bearing 1,2,4-triazine have attracted considerable attention in recent years owing to their biological and pharmaceutical activi- ties[1~3]. The 1,2,4-triazine core is a versatile synthe- tic platform to access a wide range of condensed heterocyclic ring systems via inter- and intramolecu- lar Diels-Alder reaction with a vast array of dieno- philes[4~6]. IBD (iodobenzene diacetate) is commer- cially available and used as benign non-metallic oxidant… 相似文献
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