Process for the preparation of monoesters or diesters of-9,10-en

Details Process for the preparation of monoesters or diesters of-9,10-en Process for the preparation of monoesters or diesters of-9,10-en

1988-03-01

1990-06-05

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

549513, 549557, 549265, 549562, 558365, 558406, 560 80, 560193, 560197, 560198, 560201, 562488, C07C 67343

Patent

active

049315846

ABSTRACT:
The invention relates to novel monoesters and diesters of 9,10-endoethano-9,10-dihydroanthracene-11,11-dicarboxylic acid.
These novel monoesters and diesters correspond to the following structural chemical formula (II): ##STR1## in which R.sup.1 and R.sup.2 are identical or different and can represent H, an alkali metal or alkaline earth metal atom, a linear or branched alkyl group having from 1 to 6 carbon atoms, an alicyclic group having from 3 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, defined in their cis or trans variety, or an alkynyl group having from 2 to 6 carbon atoms, the said groups optionally being substituted by one or more functional groups such as ether, epoxide, halogeno, cyano, ester, aldehyde, ketone, aryl etc., where R.sup.1 and R.sup.2 cannot be H or ethyl simultaneously. These addition products constitute valuable intermediates for the preparation of methylidenemalonates in high yields and with a high purity.

REFERENCES:
patent: 2212506 (1940-08-01), Bachman

Affiliated with

Also associated with

Rating

Process for the preparation of monoesters or diesters of-9,10-en 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 the preparation of monoesters or diesters of-9,10-en, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of monoesters or diesters of-9,10-en will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-492509