论文信息 - SYNTHESIS OF AZULENO[1,2-b]- AND AZULENO[1,2-c]THIOPHENES BY THE REACTIONS OF 2H-CYCLOHEPTA[b]FURAN-2-ONES WITH ENAMINES OF 3-OXOTETRAHYDROTHIOPHENES

SYNTHESIS OF AZULENO[1,2-b]- AND AZULENO[1,2-c]THIOPHENES BY THE REACTIONS OF 2H-CYCLOHEPTA[b]FURAN-2-ONES WITH ENAMINES OF 3-OXOTETRAHYDROTHIOPHENES

New heterocyclic compounds, azuleno[1,2-b]- and azuleno[1,2-c]thiophene, are synthesized by the reaction of 3-methoxycarbonyl-2H-cyclohepta[b]furan-2-one with morpholino enamines of 3-oxotetrahydrothiophene, followed by dehydrogenation of resulting dihydrocompounds with 2,3-dichloro-5,6-dicyano-p-benzoquinone.

K. Takase | K. Yamane | K. Fujimori | M. Yasunami | T. Fujita

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