Intramolecular Wittig Reactions. A New Synthesis of Coumarins and 2-Quinolones

o-Hydroxybenzaldehydes (1a-d) on reaction with chloroacetyl chloride in presence of pyridine followed by addition of triphenyl phosphine and base gave coumarins (2a-d). A similar sequence of reactions on o-aminoaceto-phenone/benzophenone (1e-f) and methyl anthranilate (1g) gave the corresponding 2-q...

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Bibliographic Details
Published in:Journal of chemical research 2003-10, Vol.2003 (10), p.628-629
Main Authors: Desai, Vidya G, Shet, Jyoti B, Tilve, Santosh G, Mali, Raghao S
Format: Article
Language:English
Subjects:
Chlorides
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Summary:o-Hydroxybenzaldehydes (1a-d) on reaction with chloroacetyl chloride in presence of pyridine followed by addition of triphenyl phosphine and base gave coumarins (2a-d). A similar sequence of reactions on o-aminoaceto-phenone/benzophenone (1e-f) and methyl anthranilate (1g) gave the corresponding 2-quinolones (2e-g).
ISSN:1747-5198
2047-6507
DOI:10.3184/030823403322655888