反应详情

4-Cyclohexylbenzoic acid (300 mg, 1.5 mmol) was heated at reflux with thionyl chloride (2 ml) and toluene (40 ml) for 2 h, and then evaporated to dryness under reduced pressure. 4-Methoxy-3-(4-methyl-1-piperazinyl)phenylamine (325 mg, 1.5 mmol) in dry dichloromethane (40 ml) was added with triethylamine (2 ml) and the mixture stirred for 1 h. The solution was partitioned between dichloromethane (40 ml) and saturated aqueous potassium carbonate (40 ml), the organic solution dried (sodium sulphate) and evaporated to dryness under reduced pressure to afford an oil, which was purified by flash column chromatography (silica, chloroform/methanol 5%) to afford the title compound (561 mg, 92%) which was crystallised from methanol/diethyl ether as the oxalate salt m.p. 117°-119° C.

1. customevaporated to dryness under reduced pressure
2. customThe solution was partitioned between dichloromethane (40 ml) and saturated aqueous potassium carbonate (40 ml)
3. dry with materialthe organic solution dried (sodium sulphate)
4. customevaporated to dryness under reduced pressure
5. customto afford an oil, which
6. customwas purified by flash column chromatography (silica, chloroform/methanol 5%)