Synthesis of Novel Hexaazaisowurtzitane Cages to Access CL-20

被引:10
作者
Aravindu, Pampuram [1 ]
Rani, Karike Durga [1 ]
Shaik, Abdul Munaf [1 ]
Kommu, Nagarjuna [1 ]
Rao, Vepa Kameswara [1 ]
机构
[1] Univ Hyderabad, Adv Ctr Res High Energy Mat, Hyderabad 500046, India
关键词
cage compounds; hexabenzylhexaazaisowurtzitane; hexacyclopropylhexaazaisowurtzitane; nitration; CL-20; STRAINED-RING COMPOUNDS; OPTIMIZATION; CONDENSATION; MECHANISM; GLYOXAL; CARBON; KEY;
D O I
10.1002/ajoc.202100680
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A novel hexacyclopropylhexaazaisowurtzitane (HCPIW) and hexacyclobutylhexaazaisowurtzitane (HCBIW) cage compounds were synthesized using a straightforward method by reacting glyoxal with the corresponding cycloalkylamines such as cyclopropylamine and cyclobutylamine in the presence of a catalytic amount of an acid. The obtained compounds were characterized in detail by spectroscopic and X-ray diffraction analyses. HCPIW and HCBIW with 99% and 98% purity were obtained without column chromatography. Nitration of HCPIW with H2SO4/HNO3 in dichloromethane solvent successfully afforded CL-20, high energy propellant and explosive in 25% yield.
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页数:5
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