Acetic Acid → HCID 86738153, compound

Participants

Reaction Steps

25.5 g (0.1 mole) of 2-chlorocarboxymethylene-5-methyl-[2H]-benzothiophen-3-one (obtained in accordance with German Offenlegungsschrift No. 2 804 842) are suspended at 20° C. in 300 ml of anhydrous acetic acid and to this suspension are added 11 g (0.1 mole) of thiophenol. The reaction mixture is then heated for 11/2 hours to 50° C. After cooling, the orange red precipitate is collected by filtration, washed with anhydrous acetic acid and dried at 60° C./13000 Pa, affording 28 g (85.4% of theory) of 2-thiophenyl-carboxymethylene-4-methylbenzothiophen-3-one in the form of orange red crystals with a melting point of 164°-167° C. (decompos.).

Provenance & Evidence