羰基化合物亲核加成的活性大小顺序
问题描述:
羰基化合物亲核加成的活性大小顺序
CF3--CHO CH3COCH3 CH3CH=CHCHO CH3COCH=CH2
答
羰基碳的正电性排序为:CF3-CHO>CH3COCH3 > CH3CH=CHCHO>CH3COCH=CH2
羰基化合物亲核加成的活性大小顺序
CF3--CHO CH3COCH3 CH3CH=CHCHO CH3COCH=CH2
羰基碳的正电性排序为:CF3-CHO>CH3COCH3 > CH3CH=CHCHO>CH3COCH=CH2