| Abstract: | Preparation and Properties of Trifluoromethylmercaptothiophosphoryldichloride The reaction of CF3SP(O)Cl2 with SPCl3 leads to a CF3S-chlorine exchange and gives CF3SP(S)Cl2 in 50% yield. A controlled hydrolysis of CF3SP(O)Cl2 affords CF3SP(O)(OH)2, that cannot be isolated as such, but it condenses to CF3SP(O)(OH)O? [P(SCF3)(O)? O]nP(O)(OH)SCF3. On the other hand, CF3SP(S)Cl2 reacts with water to yield H3PO4, CF3SH, S8, and HCl. CF3SP(X)Cl2 reacts with alcohols to give CF3SP(X)(OR)2 [R = CH3, C2H5, n-C3H7, CH(CH3)2, n-C4H9 and for X = O, R = C6H5, too]. The formation of semi-esters CF3SP(X)Cl(OR′) could be proven for X = O, R′ = CH3, C6H5 and for X = S, R′ = R. While CF3SP(O)(OC2H5)2 rapidly decomposes into SCF2 and FP(O)(OC2H5)2, the other compounds and primarily CF3SP(O)(OCH3)2 and CF3SP(S)(OR)2 ar stable. The reaction between CF3SCl and CH3SPCl2 results in CF3SCH2SPCl2 and that between CF3SP(O)Cl2 and AlCl3 gives [CF3SP(O)Cl]+[AlCl4]?. Physical and spectroscopical data are given for the newly formed compounds. |
