Chemistry of Heterocyclic Compounds p. 860 - 864 (1988)
Update date:2022-08-02
Topics:
Surikova, T. P.
Zakharova, V. D.
Mochalov, S. S.
Shabarov, Yu. S.
A number of cyclopropyl-substituted crotononitriles have been synthesized by a Knoevenagel condensation. Reaction of these compounds with sulfur in the presence of a base gives substituted 4-cyclopropyl- and 4-cyclopropylphenyl-2-aminothiophenes, while nitration of some acetylaminothiophenes with acetyl nitrate in acetic anhydride at low temperature gives the corresponding nitro derivatives.
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