A method for the production of oxazoles by condensation of aromatic aldehydes with α - ketoximes to n - oxides and subsequent reaction with activated acid derivatives

摘要

The present invention relates to a process for the preparation of oxazoles by condensation of aldehydes with α - ketoximes to n - oxides in the form of their salts or as free bases and subsequent reaction with activated acid derivatives to oxazoles in the form of their salts or as free bases, in particular the condensation between aromatic aldehydes and α - ketoximes, followed by reaction with inorganic thionyl halogen identical or organic sulfonyl halides to chlorine methyl oxazoles.