Journal of Heterocyclic Chemistry p. 353 - 359 (1984)
Update date:2022-09-26
Topics:
Croisy
Mispelter
Lhoste
et al.
The synthesis of two benzonaphthothiophenes and of four benzophenanthrothiophenes through Elbs cyclodehydration of ortho-methylated aroylbenzo[b]thiophenes is described. The occurrence of a rearrangement of the thiophene ring in the course of the cyclization is discussed as well as the influence of the temperature on a concurrent cyclodehydration process. Several of these poly-condensed thiophenes were found to be carcinogenic in mice.
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