and the use of a radical generator facilitated the oxygenation of these olefins. These oxidations afforded the corresponding epoxides or their derivatives in considerable yields as well as carbonyl compounds resulting from oxidative cleavage of the double bonds. The mechanisms for these oxidations are proposed to involve free-radical chain pathways and charge-transfer complexes between the olefins and
顺式-β-烷氧基
苯乙烯,例如顺式-β-甲氧基-、顺式-β-乙氧基-和顺式-β-异
丙氧基苯乙烯,即使在没有任何自由基产生剂的情况下,在黑暗中在室温下也能自动氧化为纯净物。紫外线照射和自由基发生器的使用促进了这些烯烃的氧化。这些氧化反应以相当大的产率提供相应的
环氧化物或其衍
生物,以及双键氧化裂解产生的羰基化合物。提出这些氧化的机制涉及自由基链途径和烯烃和氧之间的电荷转移复合物,它们在引发步骤中起重要作用。