Process for preparing diketopyrrolopyrrole derivatives

Details Process for preparing diketopyrrolopyrrole derivatives Process for preparing diketopyrrolopyrrole derivatives

1998-07-21

1999-07-06

McKane, Joseph K.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544296, 544333, 546256, 5462767, C07D48704, C07D51900

Patent

active

059199458

ABSTRACT:
This disclosure relates to a process for preparing bis(hydroxymethyl)pyrrolopyrrole compounds of the formula wherein A.sub.1 and A.sub.2 are aryl radicals, by reacting a 1,4-diketopyrrolopyrrole with formaldehyde. The compound of formula (II) can be isolated or further reacted in a one pot synthesis to yield a compound of the formula ##STR1## wherein B.sub.1 and B.sub.2 are organic radicals.

REFERENCES:
patent: 4585878 (1986-04-01), Jost et al.
patent: 4791204 (1988-12-01), Jost et al.
patent: 4931566 (1990-06-01), Surber et al.
patent: 5646299 (1997-07-01), Hao et al.

Affiliated with

Also associated with

Rating

Process for preparing diketopyrrolopyrrole derivatives 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 diketopyrrolopyrrole derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing diketopyrrolopyrrole derivatives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-900194