1,3,6-Trimethyl-6H-pyrano[4,3-b]carbazole-2-pyrylium Perchlorate. Synthesis and Mechanisms of Formation and Recyclization

Resumo

A method of synthesis is proposed and alternative mechanisms of formation of 1,3,6-trimethyl-6Hpyrano[ 4,3-b]carbazole-2-pyrylium perchlorate and its recyclization to 1,3,6-trimethyl-6H-pyrido[4,3-b]- carbazole, a close analog of the natural alkaloid ellipticine, are discussed.