Reactions of Cyclic Anhydrides XIV. Facile Syntheses of Fused Heterocycles via Anilic Acids Pyridobenzoxazinones,Isoquinolinobenzoxazinones and Isocoumarinoquinolines |
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| Authors: | V. Balasubramaniyan N. P. Argade |
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| Affiliation: | Science Research Centre , H.P.T. Arts and R.Y.K. Science College , Nashik, 422 005, India |
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| Abstract: | o-Carboxyhomomaleanilic acids (5) and o-carboxyhomophthalanilic acids (6) on treatment with sodium acetate-acetic anhydride furnished pyridobenzoxazinones (8) and isoquinolinobenzoxazinones (9) respectively in quantitative yields. Conversion of o-formylhomophthalanilic acid (7) to isocoumarinoquinoline (11) via 2-axo-3(o-carboxyphenyl)quinoline (10) is also described. |
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| Keywords: | Regioselective Epoxides Zinc thiolate Disulfides β-Hydroxy sulfides |
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