反应详情

A solution of 3-benzyloxy-4-methoxy-benzoyl chloride (35.01 g, 0.127 mole), prepared as described in example 54, in CH2Cl2 (200 ml) was dropwise added at 5-10° C. with diethylamine (131 ml, 92.54 g, 1.27 mole) in CH2Cl2 (130 ml). The mixture was evaporated to dryness, dissolved in ethyl acetate, washed with water, 2% KHSO4, water again and NaHCO3, anhydrified over Na2SO4 and brought to dryness. The residue was taken up in petrolatum (250 ml) to give 37.65 g of the title compound (yield: 95%)

1. customThe mixture was evaporated to dryness
2. dissolutiondissolved in ethyl acetate
3. washwashed with water, 2% KHSO4, water again