Hydrochloric Acid → HCID 11607306, compound

Participants

Reaction Steps

54 mg (0.48 mmol) of potassium-tert.-butanolate were added in portions to 200 mg (0.38 mmol) of the intermediate product 2c in 5 ml water-free dimethylformamide and everything was stirred for approximately 60 minutes. Then 113 mg (0.48 mmol) 2,4 dimethoxybenzene sulfonic acid chloride were rapidly added by drops at 0° C. This was then stirred for 16 h at room temperature. The reaction solution was subsequently poured on to 1 M NaOH, wherein a precipitate formed that was isolated. This precipitate was dissolved in 1 ml methanol and charged with 1 ml ethereal HCl. This solution was kept overnight at 0° C., wherein a precipitate resulted that was isolated. 213 mg of the product were obtained as dihydrochloride.

Provenance & Evidence