Synthesis of yellow couplers

Details Synthesis of yellow couplers Synthesis of yellow couplers

1997-06-04

1999-07-06

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

560147, 560180, 560171, C07C22900

Patent

active

059199695

ABSTRACT:
The invention provides a method of synthesis of a image-dye forming coupler of formula (I) ##STR1## wherein X is a substituent linked to the coupler by an atom of oxygen, sulfur or nitrogen R.sup.1 is an alkyl or aryl group, R.sup.2 is a hydrogen atom or an alkyl group; R.sup.3 to R.sup.7 are the same or different and selected from a hydrogen atom and substituent groups;
which method comprises the reaction of a compound of formula (II) ##STR2## wherein R and R.sup.1 are the same or different and are as defined above for R.sup.1 and X is as defined above with a compound of formula (III) ##STR3## wherein R.sup.2 to R.sup.7 are as defined above, in the presence of an inert organic solvent.

Affiliated with

Also associated with

Rating

Synthesis of yellow couplers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synthesis of yellow couplers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthesis of yellow couplers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-900424