| abstract |
PURPOSE: To obtain the titled substance useful as an intermediate for 3,4'- diaminodiphenyl ether, etc., which are medicines and highly functional high polymer materials, etc., by reacting sodium salt of p-chlorophenol with m- chlorobenzene in the presence of a copper catalyst in an organic polar medium. n CONSTITUTION: Sodium salt of p-chlorophenol is reacted with m-dichlorobenzene in an equivalent amount of preferably large excess such as 5W50 times based on the sodium salt of the p-chlorophenol in the presence of a copper catalyst, e.g. CuO, CuCl, etc., in an organic polar solvent, e.g. N,N-dimethylformamide, etc., preferably in an inert gas to afford the aimed 3,4'-dichlorodiphenyl ether. n EFFECT: Gives high yield. n COPYRIGHT: (C)1987,JPO&Japio |