CHEMICAL COMPOUNDS

Abstract

Dichloroformals of the formula (RCH.sub.2 O).sub.2 CCl.sub.2 wherein R is --C(NO2)3, --CF(NO2)2, --CF2 (NO.su), --CCl(NO2)2, --C(NO2)2 CH3, --CCl3, --CF3, or --CF2 CF3. These dichloroformals are prepared by reacting the corresponding thionocarbonate of the formula (RCH.sub.2 O).sub.2 C═S, wherein R is as defined above, with sulfuryl chloride in the presence of a Friedel-Craft catalyst (e.g., AlCl3 or TiCl4). 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.

Source: Google Patents

35 USC §181 Secrecy Order

Inventor

• 1WILLIAM H. GILLIGAN