作者:Aryeh A. Frimer、Paul D. Bartlett、Andre F. Boschung、John G. Jewett
DOI:10.1021/ja00466a033
日期:1977.11
yield both a dioxetane 2 and an allylic hydroperoxide 3, each of which is converted by heat into a single product stable under conditions of vapor chromatography. The product composition from 1 and from 1-4-d has been determined in benzene and in acetonitrile, the ratio 2/3 being 26 times greater in the latter solvent. The tritium kinetic isotope effects at the ..cap alpha..,..beta.., and ..gamma.. positions
4-甲基-1,3-二氢-..γ..-吡喃 (1) 与单线态分子氧反应生成二氧杂环丁烷 2 和烯丙基氢过氧化物 3,其中每一种都通过加热转化为稳定的单一产品气相色谱条件。1 和 1-4-d 的产物组成已在苯和乙腈中测定,2/3 的比率在后一种溶剂中高 26 倍。..cap alpha..、..beta.. 和..gamma.. 位置的氚动力学同位素效应表明,对于两种溶剂中的两种产物,过渡态的 HC/sup ..gamma../债券,加强的 HC/sup ..beta../ 债券,以及强度没有明显改变的 HC/sup ..cap alpha../ 债券。