Chemistry of Heterocyclic Compounds p. 1010 - 1013 (1981)
Update date:2022-08-11
Topics:
Dulenko, V. I.
Tolkunov, S. V.
Alekseev, N. N.
Benzothieno<2,3-c>pyrylium perchlorates were obtained in high yields in the acylation of benzothien-3-ylacetone with aliphatic acid anhydrides in the presence of 70percent perchloric acid.Treatment of the products with ammonia converts them to benzothieno<2,3-c>pyridines (in yields higher than 90percent), whereas hydroxy and dialkylamino derivatives of dibenzothiophene were obtained in up to 50percent yields by treatment of the products with alkalis or secondary amines, respectively.
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Doi:10.1016/j.carres.2015.04.018
(2015)Doi:10.1039/c4ob01472c
(2014)Doi:10.1002/anie.200906699
(2010)Doi:10.1039/DT9820001631
(1982)Doi:10.1021/ja01499a072
(1960)Doi:10.1021/jo01116a003
(1956)
