Convenient synthesis of 6‐substituted‐2‐chloro‐5,12‐dihydro‐5‐oxobenzoxazolo[3,2‐ a ]quinolines and  N ‐acylated‐3‐chlorodibenz[ b,e ][1,4]oxazepin‐11(5 H )‐ones | Zendy

Chung Sang J. | Zendy; Joo Keum Chan | Zendy; Kim Dong H. | Zendy

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Convenient synthesis of 6‐substituted‐2‐chloro‐5,12‐dihydro‐5‐oxobenzoxazolo[3,2‐ a ]quinolines and N ‐acylated‐3‐chlorodibenz[ b,e ][1,4]oxazepin‐11(5 H )‐ones

Author(s) -

Chung Sang J.,

Joo Keum Chan,

Kim Dong H.

Publication year - 1997

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.5570340221

Subject(s) - chemistry , acetic anhydride , yield (engineering) , acylation , anthranilic acid , sodium salt , salt (chemistry) , medicinal chemistry , organic chemistry , sodium , catalysis , inorganic chemistry , materials science , metallurgy

Convenient synthesis of variously substituted 2‐chloro‐5,12‐dihydro‐5‐oxobenzoxazolo[3,2‐ a ]quinolines at the 6‐position and N ‐acylated‐3‐chlorodibenz[ b,e ][1,4]oxazepin‐11(5 H )‐ones are reported. The former compounds were obtained in 65–93% yield by simply heating N ‐acyl‐4‐chloro‐ N ‐(2‐hydroxyphenyl)‐anthranilic acids in acetic anhydride for 4 hours, and the latter by heating sodium salt of N ‐acyl‐4‐chloro‐ N ‐(2‐hydroxyphenyl)anthranilic acids with acetic anhydride.

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