Process for the production of 2-substituted chromones

Details Process for the production of 2-substituted chromones Process for the production of 2-substituted chromones

1978-03-31

1979-06-19

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424283, C07D31122

Patent

active

041586638

ABSTRACT:
This invention is concerned with a novel process for the production of 2-substituted chromones (I) from readily available 4-methoxycoumarins. ##STR1## These compounds are useful as antiallergy agents.

REFERENCES:
corey et al., JACS, 87, 1345 (1965).

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