5 research outputs found
Regioselective synthesis of new 5-methyl-5H-pyrimido[4′,5′:4,5][1,3]thiazino [3,2-a]perimidines
Synthesis of pyrimido[4′,5′:5,6][1,4]dithiepino[2,3-b]quinoxalines: Derivatives of a novel seven membered ring system
<p></p> <p>A convenient and efficient procedure for the synthesis of tetracyclic dithiepin derivatives is described through the condensation reaction of 2,4-dichloro-5-(chloromethyl)-6- methylpyrimidine and quinoxaline-2,3-dithiol followed by treatment with secondary amines.</p