1,3-Dipolar cycloadditions of different hydrophobic nitrones 1, 2, 3, 4 with acrylates 5 and 6 were studied in both homogenous organic solutions and aqueous suspensions. Reactions in water suspensions showed great rate accelerations over homogenous solutions. Small changes were also observed to the stereoselectivities of the reactions. Hydrophobic interactions are invoked for the observed behaviour.
不同疏
水性
硝基化合物1、2、3、4与
丙烯酸酯5和6的1,3-双极环加成反应在均相有机溶液和
水悬浮液中进行了研究。
水悬浮液中的反应显示出相对于均相溶液的显著速率加速。反应的立体选择性也观察到了一些小变化。观察到的行为被认为与疏
水相互作用有关。