2,6-Dimethylaniline → 2-(4-Amino-3,5-dimethylphenyl)-1,1,1,3,3,3-hexafluoropropan-2-ol

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Reaction Conditions

Reaction Steps

At room temperature, 24.4 g of 2,6-dimethylaniline and 50.0 g of hexafluoroacetone hydrate were mixed, and 0.5 g of p-toluenesulfonic acid monohydrate was added. The reaction solution was stirred and heated to 100° C. After the loss of the starting material was confirmed through TLC, ethyl acetate and an aqueous solution of 1N sodium hydroxide were added to the reaction solution, and phase separation was carried out. The organic layer was dried over anhydrous magnesium sulfate and filtered. The filtrate was concentrated under reduced pressure, and the residue was washed by addition of hexane. The suspension was filtered, and thus obtained filtered residue was dried under reduced pressure at room temperature to give 24.3 g (yield 69%) of the title compound as a powder form.

Provenance & Evidence