Dimethylformamide → 4-tert.-Butyl-2,6-dimethyl-3-hydroxyphenylacetyl chloride

関与物質

反応手順

47.2 g (0.20 moles) of 4-t-butyl-2,6-dimethyl-3-hydroxyphenyl acetic acid, and 0.4 ml of dry N,N-dimethylformamide are dispersed in 325 ml of dry benzene. To this slurry was added dropwise with stirring under a nitrogen atmosphere 28.5 g (17.5 ml, 0.24 moles) of thionyl chloride at ambient temperature. The reaction mixture was allowed to stir for 16 hours, then evaporated under reduced pressure, yielding an orange-colored solid, which proved by analysis to be the desired acid chloride. The residue was dissolved in 500 ml of benzene, analyzed for chloride ion and used for subsequent reactions in solution.

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