首页>
外国专利>
METHOD OF SYNTHESIS OF 1,5-DINITRO-3,7-ENDO-METHYLENE-1,3,5,7- TETRAZACYCLOOCTANE
METHOD OF SYNTHESIS OF 1,5-DINITRO-3,7-ENDO-METHYLENE-1,3,5,7- TETRAZACYCLOOCTANE
展开▼
机译:1,5-二硝基-3,7-内-亚甲基-1,3,5,7-四环辛烷的合成方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to method of synthesis of cyclic nitroamines. Invention describes method of synthesis of 1,5-dinitro-endomethylene-1,3,5,7-tetrazacyclooctane. Method involves interaction of urea derivatives with methylolating agent, their decarboxylation followed by neutralization with aqueous ammonia and isolation of the end substance. Urea is used as the parent substance for synthesis of its derivatives and urea is treated with a mixture of sulfuric and nitric acids taken in the mass ratio = 1:(5- 10) at temperature 20 C - 20 C followed by successive mixing the prepared reactive mass with water at temperature 20 C, not above, with methylolating agent at temperature 0=60 C and ammonia at temperature 0-25 C. Formaldehyde or urotropin is used as a methylolating agent. Invention provides synthesis of the end substance based on available raw. EFFECT: improved method of synthesis, increased yield. 3 tbl
展开▼