Intermediates in the preparation of 4-phenylpyrrole derivatives
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 1, 1991
Issued Date -
N/A
app pub date -
Dec 22, 1988
filing date -
Sep 12, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a process for the preparation of 4-phenylpyrrole derivatives of the formula I ##STR1## wherein R.sub.n, R.sub.1 and R.sub.2 are as defined in claim 1, which comprises reacting a phenacylamine of formula II ##STR2## with a compound of formula III T--CH.dbd.CH--R.sub.1 (III) to give an intermediate of formula IV ##STR3## and cyclizing said intermediate, in the presence of a base, to give the compound I. Important intermediates and novel final products are also described.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully