| 摘要 |
The invention comprises a process for the production of alkyl and polyalkylene oxyalkylaryl and -alkyl-chlorides by the action of thionyl chloride on alcohols, including aromatic alcohols and polyalkylene oxy-alcohols, in presence of finely-divided carbon under anhydrous conditions. In examples, the following chlorides are prepared by the action of thionyl chloride in presence of 1-4 per cent of finelydivided carbon on the corresponding alcohols: <FORM:0764149/IV(b)/1> C12H25(OC2H4)3Cl, cetyl chloride, octadecyl chloride, octyl chloride, <FORM:0764149/IV(b)/2> <FORM:0764149/IV(b)/3> C8H17(OC2H4)3Cl, C16H33(OC2H4)3Cl. The carbon acts both as catalyst and as de-colorising agent. Other alcohols specified for conversion to chlorides are those where the hydrocarbon chain is of 8-18 carbons, and aromaticaliphatic alcohols with one or more alkyl groups of 6-15 carbon atoms and 1-18 ethoxy groups, with optionally one or two propoxy groups. |
