| abstract |
[PROBLEMS] To provide a safe and efficient method for producing [2- (arylsulfonyl) ethenyl] benzene derivatives. The corresponding general formula 1 Reaction of 2- (arylsulfonyl) ethanols with an acid anhydride in the presence of a base, Aromatic chlorine, bromine or iodide, the general formula 3 to act in the presence of P d catalyst and a base (R 1 to R 4 are the same or different and are hydrogen, fluorine, chlorine, lower alkyl, lower alkoxy, nitro, cyano, Represents an amino, lower alkylamino, di (lower alkyl) amino, acyl or alkoxycarbonyl group. Here, when R 3 and R 4 are adjacent to each other, they may form a ring together. [2- (arylsulfonyl) ethenyl] A method for producing a benzene derivative. |