Claims
- 1. In an improved process of making (1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane) by the nitrolysis of 1,3,5,7-tetraacetyl-1,3,5,7-tetraazacyclooctane (TAT) with nitric acid and dinitrogen pentoxide or phosphorous pentoxide, the improvement consisting essentially of using between 5 to 10 g nitric acid per gram TAT, at a temperature between about 20.degree. C. and about 45.degree. C. for a time period between about 4 Hr. and about 16 Hr. to produce a quantitative yield of about 99% and a purity of 99% or more.
- 2. The process of claim 1 wherein the temperature is about 20.degree. C. and the reaction time is about 16 Hr.
- 3. The process of claim 1 wherein the temperature is about 35.degree. C. and the reaction time is about 10 Hr.
- 4. The process of claim 1 wherein the temperature is about 45.degree. C. and the reaction time is about 5 Hr.
- 5. The process of claim 1 wherein the total amount of phosphorous pentoxide is less than 3 mole equivalents per mole of TAT.
GOVERNMENTAL INTEREST
The Government has rights in this invention pursuant to Contract No. DAAA86-C-0171 awarded by Department of the Army.
The invention described herein was made in the course of or under a contract or subcontract thereunder with the Government and may be manufactured, used and licensed by or for the Government for Governmental purposes without the payment to us of any royalties thereon.
US Referenced Citations (6)