申请人:The United States of America as represented by the Secretary of the Navy
公开号:US04449000A1
公开(公告)日:1984-05-15
A 1:1:2 mixed orthocarbonate of the formula ##STR1## wherein R and R" are each one of the following groups --CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3, --CH.sub.2 C(NO.sub.2).sub.3, --CH.sub.2 CF(NO.sub.2).sub.2, --CH.sub.2 CF.sub.2 (NO.sub.2), and --CH.sub.2 CF.sub.3, and R' is one of the following CH.sub.2 CF(NO.sub.2).sub.2, CH.sub.2 CF.sub.2 (NO.sub.2), and CH.sub.2 CF.sub.3, provided that R.noteq.R', R.noteq.R", and R'.noteq.R". These 1:1:2 orthoconates are produced by the following reaction sequence: ##STR2## wherein R, R', and R" are as defined above. By choosing R and R" to be the same and either --CH.sub.2 (NO.sub.2).sub.2 CH.sub.3 or --CH.sub.2 C(NO.sub.2).sub.3 in the above reaction, 1:3 mixed orthocarbonates of the formula ##STR3## wherein R.noteq.R', R".noteq.R', R=R", and R and R" are each CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3, CH.sub.2 C(NO.sub.2).sub.3, CH.sub.2 CF.sub.2 (NO.sub.2), or CH.sub.2 CF.sub.3, and R' is CH.sub.2 CF(NO.sub.2).sub.2, CH.sub.2 CF.sub.2 (NO.sub.2) or CH.sub.2 CF.sub.3 may be prepared.
公式为##STR1##的1:1:2混合正羟碳酸酯,其中R和R"分别是以下各组之一--CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3,--CH.sub.2 C(NO.sub.2).sub.3,--CH.sub.2 CF(NO.sub.2).sub.2,--CH.sub.2 CF.sub.2 (NO.sub.2),和--CH.sub.2 CF.sub.3,而R'是以下CH.sub.2 CF(NO.sub.2).sub.2,CH.sub.2 CF.sub.2 (NO.sub.2),和CH.sub.2 CF.sub.3之一,前提是R不等于R',R不等于R",且R'不等于R"。这些1:1:2正羟碳酸酯是通过以下反应序列产生的:##STR2##其中R,R'和R"如上定义。通过选择R和R"相同且在上述反应中为--CH.sub.2 (NO.sub.2).sub.2 CH.sub.3或--CH.sub.2 C(NO.sub.2).sub.3,可以制备公式为##STR3##的1:3混合正羟碳酸酯,其中R不等于R',R"不等于R',R=R",且R和R"分别是CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3,CH.sub.2 C(NO.sub.2).sub.3,CH.sub.2 CF.sub.2 (NO.sub.2),或CH.sub.2 CF.sub.3,而R'是CH.sub.2 CF(NO.sub.2).sub.2,CH.sub.2 CF.sub.2 (NO.sub.2)或CH.sub.2 CF.sub.3。