[TsO]-[PyH]+酸性比TsOH弱,而TsOH-DMAP的酸性要比TsOH-Py还要弱。 偶老大呀啊 2楼: Originally posted by chlory at 2012-06-18 17:19:15 我理解起作用的是那个盐; -+为类似的的盐,可阅wikipedia: http://en.wikipedia.org/wiki/Pyridinium_p-toluenesulfonate 及J. Org. Chem. 42 (23): 3772–...