Triethylamine → HCID 57293789, compound

Participants

Reaction Steps

In dichloromethane (100 ml) are dissolved 1-hydroxy-1,2,3-benzotriazole (5.4 g) and triethylamine (5.6 ml). To the solution is added β-styrenesulfonyl chloride (8.0 g) with stirring at room temperature, and the mixture is stirred for 1 hour. The reaction mixture is washed twice with water (30 ml) and dried over anhydrous magnesium sulfate-charcoal. After drying, the solvent is distilled off. The residue is dissolved in ethyl acetate (20 ml) and thereto is added n-hexane (50 ml) to give needles of 1-(β-styrenesulfonyloxy)-1,2,3-benzotriazole (9.0 g). A part of the product is recrystallized from ethyl acetate-n-hexane to give a pure product, melting point: 102°-103° C.

Provenance & Evidence