申请人:The United States of America as represented by the Secretary of the Navy
公开号:US05631406A1
公开(公告)日:1997-05-20
Dichloroformals of the formula (RCH.sub.2 O).sub.2 CCl.sub.2 wherein R is --C(NO.sub.2).sub.3, --CF(NO.sub.2).sub.2, --CF.sub.2 (NO.su), --CCl(NO.sub.2).sub.2, --C(NO.sub.2).sub.2 CH.sub.3, --CCl.sub.3, --CF.sub.3, or --CF.sub.2 CF.sub.3. These dichloroformals are prepared by reacting the corresponding thionocarbonate of the formula (RCH.sub.2 O).sub.2 C.dbd.S, wherein R is as defined above, with sulfuryl chloride in the presence of a Friedel-Craft catalyst (e.g., AlCl.sub.3 or TiCl.sub.4). Another method is to react the thionocarbonate with chlorine gas in the presence of a polar additive such as 2,2,2-trifluoroethanol or acetonitrile. These energetic dichloroformals are useful as explosive and propellant ingredients and as intermediates in the synthesis of other energetic explosive and propellant ingredients.
式为(RCH.sub.2 O).sub.2 CCl.sub.2的二氯甲醛,其中R为--C(NO.sub.2).sub.3,--CF(NO.sub.2).sub.2,--CF.sub.2 (NO.su),--CCl(NO.sub.2).sub.2,--C(NO.sub.2).sub.2 CH.sub.3,--CCl.sub.3,--CF.sub.3或--CF.sub.2 CF.sub.3。这些二氯甲醛通过在Friedel-Craft催化剂(例如AlCl.sub.3或TiCl.sub.4)存在下,将相应的硫代碳酸酯(RCH.sub.2 O).sub.2 C.dbd.S(其中R如上所定义)与亚磺酰氯反应制备而成。另一种方法是在极性添加剂(例如2,2,2-三氟乙醇或乙腈)存在下,将硫代碳酸酯与氯气反应。这些高能二氯甲醛可用作爆炸和推进剂成分,并用作合成其他高能爆炸和推进剂成分的中间体。