Process for preparing benzopyran compounds

Details Process for preparing benzopyran compounds Process for preparing benzopyran compounds

1995-05-26

1997-01-21

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548252, C07D25704, C07D40704

Patent

active

055961037

ABSTRACT:
This invention comprises a process for preparing benzopyran derivatives represented by formula (I) ##STR1## in which, R.sup.1 is C.sub.1-20 alkyl, C.sub.2-20 alkenyl, C.sub.2-20 alkynyl, or a group of structure (i), (ii) or (iii). ##STR2##

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