Production of hexanitrostilbene (HNS)

Details Production of hexanitrostilbene (HNS) Production of hexanitrostilbene (HNS)

1984-07-19

1986-12-02

Lechert, Jr., Stephen J.

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

Organic compounds

Oxygen containing

260688, 568928, C07C 7910

Patent

active

046266062

ABSTRACT:
A process for the manufacture of 2,2', 4,4', 6,6-hexanitrostilbene (HNS) from dipicrylethane (DPE) or trinitrotoluene (TNT) which consists of oxidizing DPE or TNE substrate in the presence of an aprotic solvent and a basic salt of a carboxylic acid. The acid preferably consists of an ammonium or an alkali metal salt of a monocarboxylic or a dicarboxylic acid. The reaction step consists of heating the substrate and salt dissolved in the solvent to between 15.degree. and 50.degree. C., and contacting the reaction mixture with dry air or oxygen for up to 2 hours. The HNS product is precipitated out by quenching the reaction mixture in acidified water, and is optionally purified by washing first in methanol and then in acetone.

REFERENCES:
patent: 2965681 (1960-12-01), Stansbury
patent: 3505413 (1970-04-01), Shipp
patent: 3636168 (1972-01-01), Josephson
patent: 3716590 (1973-02-01), Caraculacu et al.
patent: 3895055 (1975-07-01), Itatani et al.
patent: 3941853 (1976-03-01), Shipp et al.
patent: 4085152 (1978-04-01), Salter et al.
patent: 4199532 (1980-04-01), Angres
patent: 4221745 (1980-09-01), Gilbert
patent: 4221746 (1980-09-01), Gilbert
patent: 4238420 (1980-12-01), Bird et al.
patent: 4238421 (1980-12-01), Bird et al.
patent: 4243614 (1981-01-01), Gilbert
patent: 4255358 (1981-03-01), Jones et al.
patent: 4268696 (1981-05-01), Sollott et al.
patent: 4270012 (1981-05-01), Gilbert
patent: 4294976 (1981-10-01), Itatani et al.
patent: 4307258 (1981-12-01), Sollott
Propellants and Explosives, vol. 3, No. 1, Apr. 2, 1978, pp. 115-120, P. Golding et al., "Studies on the Synthesis of 2,2', 4,4', 4,7'-Hexanitrostilbene".

Affiliated with

Also associated with

Rating

Production of hexanitrostilbene (HNS) does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of hexanitrostilbene (HNS), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of hexanitrostilbene (HNS) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2293437