Process for preparing substituted phthalic anhydrides

Details Process for preparing substituted phthalic anhydrides Process for preparing substituted phthalic anhydrides

1984-12-20

1986-01-14

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549247, C07D30789

Patent

active

045646872

ABSTRACT:
A process for preparing substituted phthalic anhydrides, e.g. 4-methylphthalic anhydride, in which the Diels-Alder addition product of a conjugated diene, e.g. isoprene, and maleic anhydride is reacted with sulfuryl chloride in the presence of pyridine and an optional solvent, e.g. chlorobenzene.

REFERENCES:
patent: 2264429 (1941-12-01), Bergmann et al.
patent: 2391226 (1945-12-01), Clifford et al.

Affiliated with

Also associated with

Rating

Process for preparing substituted phthalic anhydrides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing substituted phthalic anhydrides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing substituted phthalic anhydrides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-431448