Water → HCID 68906541, compound

Participants

Reaction Steps

p-Toluene sulfonic acid (0.76 g, 5.4 mmol) was added to a solution of a mixture (0.57 g, 2.7 mmol) of 2-chloro-5-(2-hydroxyethyl)-4-hydroxymethylbenzonitrile and 2-chloro-3-(2-hydroxyethyl)-4-hydroxymethylbenzonitrile in toluene (10 mL). The mixture was stirred while heating under reflux overnight. The reaction solution was cooled to room temperature, and water was added thereto. The mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure to give crude product. The resulting crude product was purified by silica gel column chromatography using n-hexane-ethyl acetate (mixing ratio=2:1), and dried under reduced pressure to give a 1:0.1 mixture (0.4 g, 79%) of the title compound and 5-chloroisochromane-6-carbonitrile.

Provenance & Evidence