SYNTHESIS OF HETEROCYCLES BASED ON PRODUCTS OF ANION ARYLATION OF UNSATURATED COMPOUNDS. 5. REACTION OF 2-ARYL-1,4-BENZOQUINONES WITH THIOUREA
Keywords:
2-aryl-1,4-benzoquinones, thioureaAbstract
2-Aryl-1,4-benzoquinones, that can be obtained by arylation of quinone by arenediazonium salts, regioselectively react with thiourea in acid medium to form 7-aryl-5-hydroxy-1,3-benzoxathiol-2-ones. In the presence of excess arylquinones at room temperature, 2-amino-6-hydroxybenzothiazoles are formed in the same reaction.
How to Cite
Obushak, N. D.; Matiichuk, V. S.; Martyak, R. L. Chem. Heterocycl. Compd. 2001, 37, 909. [Khim. Geterotsikl. Soedin. 2001, 986.]
For this article in the English edition, see DOI https://doi.org/10.1023/A:1012420128922