derivatives via insertion of carbene into hydroxyl groups. The distribution of the 2-, 3-, and 6-O-isomers indicates that the regioselectivity is moderate. The guest geometry is not as important as its size in determining the ratios of regioisomers. The origins of the regioselectivity are discussed.
                                    芳族重氮化合物与环
麦芽七糖(β-
环糊精)的固体配合物的热解可通过将卡宾插入羟基来产生两种衍
生物。2-,3-和6-O-异构体的分布表明区域选择性是中等的。在确定区域异构体的比例时,客体几何形状与其大小无关紧要。讨论了区域选择性的起源。