Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diamin

Details Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diamin Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diamin

1992-10-26

1994-04-19

Lone, Werren B.

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

Organic compounds

Oxygen containing

568712, 568713, C07C20526

Patent

active

RE0345890

ABSTRACT:
The displacement of halogen from a 1,2,3-trihalo-4,6-dinitroresorcinol can be carried out in an aqueous medium using alkali metal hydroxide to form 2-halo-4,6-dinitroresorcinol. The product is a useful intermediate in the synthesis of 4,6-diaminoresorcinol, which is a monomer for polybenzoxazole polymers. The process from part of a useful aqueous process for synthesizing 4,6-diaminoresorcinol.

REFERENCES:
patent: 3726929 (1973-04-01), Payne et al.
patent: 4001340 (1977-01-01), Smith et al.
patent: 4324914 (1982-04-01), Cordier
patent: 4418213 (1983-11-01), Cordier
patent: 4540832 (1985-09-01), Arndt et al.
patent: 4566876 (1986-01-01), Brown
patent: 4766244 (1988-08-01), Lysenko et al.
patent: 4835306 (1989-05-01), Lysenko
patent: 5001279 (1991-03-01), Yin
Nippon Kayaku KK, Japanese Kokai 60(85)-188,349 (Sep. 25, 1985) abstract.
Yokoi et al., Manufacturing Method for Chloropicrin, Japanese Kokoku No. A.40 S. 40 (1965)-4043.
Lysenko, Ser. No. 07/570,667 (filed Aug. 23, 1990) Abandoned.
Lysenko, Ser. No. 07/570,678 (filed Aug. 22, 1990).

Affiliated with

Also associated with

Rating

Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diamin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diamin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous synthesis of 2-halo-4,6-dinitroresorcinol and 4,6-diamin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-12778