Epoxybenzopyrans

Details Epoxybenzopyrans Epoxybenzopyrans

1989-12-06

1991-12-24

Kilby Scalzo, Catherine S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549387, C07D49300, C07D31196

Patent

active

050754602

ABSTRACT:
A compound of the formula ##STR1## wherein: one of R.sub.1 and R.sub.2 is hydrogen or C.sub.1-4 alkyl and the other is C.sub.1-4 alkyl or R.sub.1 and R.sub.2 together are C.sub.2-5 polymethylene; and R'.sub.4 is ethyl, isopropyl, t-butyl or cyclopentyl.

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