Sciencemadness Discussion Board

mono chloro dimethoxy benzene preparation

ramarao - 9-9-2006 at 08:23

While chlorinating para dimethoxy benzene with sulphuryl chloride,the formation of dichloro content is becoming more after about 60% monochloro formation.
Could any one suggest methods/additives to avoid formation of dichloro and get pure 2-chloro-1,4-dimethoxy benzene without any dimethoxy benzene residue.

[Edited on 9-9-2006 by ramarao]

[Edited on 9-9-2006 by ramarao]

[Edited on 10-9-2006 by ramarao]

Nicodem - 10-9-2006 at 00:43

Such problems were the reason for chemists to invent vacuum distillation and distillation colums. So use them.

(WTF is this post doing in Biochemistry?)

ramarao - 10-9-2006 at 06:09

yes.by mistake it is posted in Biochemistry.It is nothing to do with Biochemistry.

Distillation of unreacted dimethoxy benzene is tried.It is working well.A commercial set up has been designed also. But I would like to avoid it. and looking for completing conversion to mono chloro without much dichlro formation and no residual DMB.