Syntheses and reactions of some 2,3‐disubstituted pyrazine monoxides | Zendy

Ohta Akihiro | Zendy; Masano Sawako | Zendy; Iwakura Sachiko | Zendy; Tamura Akiko | Zendy; Watahiki Hiroko | Zendy; Tsutsui Mayumi | Zendy; Akita Yasuo | Zendy; Watanabe Tokuhiro | Zendy; Kurihara Teruo | Zendy

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Syntheses and reactions of some 2,3‐disubstituted pyrazine monoxides

Author(s) -

Ohta Akihiro,

Masano Sawako,

Iwakura Sachiko,

Tamura Akiko,

Watahiki Hiroko,

Tsutsui Mayumi,

Akita Yasuo,

Watanabe Tokuhiro,

Kurihara Teruo

Publication year - 1982

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.5570190304

Subject(s) - pyrazine , chemistry , acetic anhydride , organic chemistry , chloride , benzoyl chloride , medicinal chemistry , acetic acid , phosphoryl chloride , catalysis

The reactions of 2,3‐dimethyl‐ ( 4 ), 2,3‐diphenyl‐ ( 6 ), and 2‐methyl‐3‐phenyl‐pyrazine monoxides ( 8 and 9 ) with phosphoryl chloride and acetic anhydride resulted in giving monochloro‐ and monacetoxy‐pyrazines in almost all cases. However, the reaction of 6 with acetic anhydride afforded exceptionally a diacetoxydihydro‐pyrazine. These products were converted further to hydroxy or dichloro derivatives.

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