Triethylamine → HCID 14551613, compound

Participants

Reaction Steps

Under a dry nitrogen atmosphere 0.84 ml (0.011 mole) of thiophosgene was added to a stirred solution of 2.8 g (0.011 mole) of 4-chloro-2-fluoro-5-(N-ethylsulfonylamino)aniline in 250 ml of chloroform. To this mixture was added dropwise 1.6 g (0.012 mole) of triethylamine. The resultant mixture was stirred at room temperature for approximately 18 hours. The solvent was removed from the mixture by evaporation under reduced pressure leaving an oily residue. This residue was purified by column chromatography on silica gel, eluting with methylene chloride/hexane (60/40) followed by methylene chloride, to yield 1.6 g of 4-chloro-5-(N-ethylsulfonylamino)-2-fluorophenyl isothiocyanate as a solid, m.p. 104°-105° C.

Provenance & Evidence