Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2

Details Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2 Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2

1990-02-28

1991-11-19

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549345, 549387, 549401, C07D31178

Patent

active

050668161

ABSTRACT:
The present invention provides an industrially valuable method for preparing an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compound which is useful as a starting material for an optically active benzopyran compound with antihypertensive, coronary blood flow-increasing activities and the like, and also provides a diastereomeric ester compound with a 3-halo-4-hydroxy-2H-1-benzopyran compound which is useful as an intermediate for said epoxy compound.

REFERENCES:
patent: 4062870 (1977-12-01), Watts
patent: 4446113 (1984-04-01), Evans et al.

Affiliated with

Also associated with

Rating

Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2 does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1371760