STUDIES WITH POLYFUNCTIONALLY SUBSTITUTED HETEROAROMATICS: A NEW ROUTE TO POLYFUNCTIONALLY SUBSTITUTED ANNELATED MERCAPTOPHTHALAZINES
- 1 February 1993
- journal article
- research article
- Published by Taylor & Francis in Phosphorus, Sulfur, and Silicon and the Related Elements
- Vol. 82 (1-4) , 195-205
- https://doi.org/10.1080/10426509308047422
Abstract
The thieno[3,4-d]pyridazine derivatives 1a, b reacted with acrylonitrile to afford the mercaptophthalazine derivatives 6a, b. The latter products reacted with acrylonitrile again to afford 11a, b. With maleic anhydride and N-phenylmaleimide they afforded 13a-d respectively. Nitration and bromination of 6a, b gave 14a, b and 15a, b. Cycloaddition reactions of the latter products with acrylonitrile and maleimides were studied.Keywords
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