摘要:
The invention relates to a process for the preparation of 2,2-dichlorophenylacetic acid esters by reaction of 2,2-dichlorophenylacetonitrile with water and a monovalent alcohol in the presence of a halogenhydracid.
摘要:
The invention relates to a process for the preparation of derivatives of dichloroacetic acid esters, by reaction of a glyoxylic acid ester having the general formula R 1 -CO-COOR 2 , wherein R, represents an optionally substituted aryl or heteroaryl group and R 2 an alkyl, cycloalkyl or aryl group, with phosphoruspentachloride in the presence of a dispersant suitable for distributing the phosphoruspentachloride.