4-Toluenesulfonyl chloride → HCID 13133792, compound

Participants

Reaction Steps

To a solution of 3,4-dimethoxyphenethanol (4.4 g) in methylene chloride (15 ml) containing triethylamine (2.7 g or 3.7 ml), was added gradually a solution of tosyl chloride (5.07 g) in methylene chloride (15 ml). The mixture was stirred at room temperature overnight. The mixture was diluted with chloroform and washed with water. The organic layer was separated, dried and evaporated to yield a crude product (11.7 g). The product was passed through a column of silica gel (250 g) and the eluates were evaporated to give 3,4-dimethoxyphenethyl tosylate (7.2 g): ir(CHCl3) 1600 and 1500 cm-1 ; and nmr(CDCl3) δ2.4 (s, 3H), 2.85 (m, 2H), 3.72 (s, 3H), 3.75 (s, 3H), 4.15 (t, 2H), 6.6 (m, 2H), 7.23 (m, 3H) and 7.64 (m, 2H).

Provenance & Evidence