Sciencemadness Discussion Board

chlorination of ethylene glycol

Tengo - 3-4-2003 at 20:15

Could ethylene glycol be chlorinated with HCl and a lewis acid (catalyst: CaCl2 or ZnCl2), forming dichloroethane?

OH-CH2-CH2-OH + 2HCl => Cl-CH2-CH2-Cl + 2H2O

DDTea - 5-4-2003 at 23:05

I know that by reacting HCl gas with boiling Ethylene Glycol, then collecting the product in another flask, you are able to get Ethylene Chlorohydrin. But, that's as far as I can help you :D

[Edited on 4-6-03 by Samosa]

mysteriusbhoice - 22-12-2023 at 19:07

Quote: Originally posted by DDTea  
I know that by reacting HCl gas with boiling Ethylene Glycol, then collecting the product in another flask, you are able to get Ethylene Chlorohydrin. But, that's as far as I can help you :D

[Edited on 4-6-03 by Samosa]

I hope this works for 1,4 butanediol to make n bromo butanol either with HBr or Br2 and a reducing agent like Al or P.

Pumukli - 23-12-2023 at 08:03

You can't make dichloroethane this way. Maybe in traces but that's all.

mysteriusbhoice - 24-12-2023 at 00:33

I am really more interested in making ethyl chlorohydrin rather than dichloroethane because I can simply buy that directly.

dettoo456 - 24-12-2023 at 09:30

https://m.youtube.com/watch?v=bKiXxoRZ_VQ

It’s possible to chlorinate with HCl. Just dry it and the glycol first.