Sulfuryl chloride → (2R,6S)-2,6-dimethylmorpholine-4-sulfonyl chloride

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Reaction Steps

Sulfuryl dichloride (0.363 ml, 4.47 mmol) was added at room temperature to a solution of cis-2,6-dimethylmorpholine (0.500 ml, 4.06 mmol) and 4-dimethylaminopyridine (496 mg, 4.06 mmol) in CH2Cl2 (5 ml) and the whole was stirred at room temperature for 24 hours. The reaction mixture was quenched with H2O (10 ml) and extracted with ethyl acetate (20 ml×3). The combined organic layer was washed with brine (10 ml), dried over Na2SO4, filtered and concentrated in vacuo to give cis-2,6-dimethylmorpholine-4-sulfonyl chloride.

Provenance & Evidence