摘要:
The present invention relates to a process for the preparation of pure 2-chloro-5 -chloromethylthiazole by distillation in the presence of oligomeric polyethers.
摘要:
Improved working up of the waste from an isomerization reaction of dichlorobutene by precipitating the copper catalyst used in said process by adding a polar solvent and removing the resulting precipitate by filtration.