I. Okabayashi, N. Murakami, Kaoru Sekiya
May 1, 1989
Citations
0
Influential Citations
6
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
1, 5-Dichloro-9H-thioxanthen-9-one (2) was prepared by cyclization of 2-chloro-6-[(2-chlorophenyl)thio]-benzoic acid (10) obtained from 2-chloro-6-iodobenzoic acid (9) and 2-chlorobenzenethiol. Similarly, 1, 7-di-chloro-9H-thioxanthen-9-one (6) was prepared from 9 via 2-chloro-6-[(4-chlorophenyl)thio]benzoic acid (11). Compound 6 was also obtained by condensation of 2-chloro-6-mercaptobenzoic acid (12) with chlorobenzene in the presence of sulfuric acid.