phenyl-substituted and unsubstituted double bonds: the grossly different selectivity of the nitrenes for the two double bonds in each case has been interpreted in terms of a change in mechanism from non-concerted to concerted and has allowed a description of the likely transition state geometry in the latter case.
由N-
氨基化合物(6)和(7)氧化生成的腈被苯基取代的和未取代的双键竞争性地捕获:在每种情况下,对于两个双键,腈的选择性完全不同。机制从非一致转变为一致的术语,并允许描述后一种情况下可能的过渡态几何形状。