Synthesis of 1, 5‐ and 1, 7‐dichloro‐9 H ‐thioxanthen‐9‐ones | Zendy

Okabayashi Ichizo | Zendy; Murakami Née Iwata Noriko | Zendy; Sekiya Kaoru | Zendy

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Synthesis of 1, 5‐ and 1, 7‐dichloro‐9 H ‐thioxanthen‐9‐ones

Author(s) -

Okabayashi Ichizo,

Murakami Née Iwata Noriko,

Sekiya Kaoru

Publication year - 1989

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570260323

Subject(s) - chemistry , chlorobenzene , benzoic acid , thio , sulfuric acid , condensation , medicinal chemistry , organic chemistry , catalysis , thermodynamics , physics

1, 5‐Dichloro‐9 H ‐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‐9 H ‐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.

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