作者:John J. Eisch、Csaba A. Kovacs、Sue-Goo Rhee
DOI:10.1016/s0022-328x(00)82263-9
日期:1974.2
2-aryl shifts in the Wittig rearrangement of α-metallated benzyl aryl ethers has been investigated by a detailed examination of the behavior of the following ethers: benzyl phenyl ether, benzyl para-tert-butyl- and meta-tert-butyl-phenyl ethers, benzyl 2-bromo-4-tert-butylphenyl ether and dibenzo[b,d] pyran. The failure to trap any aldehyde intermediate, the ease of rearrangement for the pyran, the lack
已通过详细检查以下醚的行为研究了α-金属化的苄基芳基醚的Wittig重排中1,2-芳基移位的机理:苄基苯基醚,苄基对叔叔丁基和间叔叔胺-丁基-苯基醚,苄基2-溴-4-叔丁基苯基醚和二苯并[ b,d ]吡喃。未能捕获任何醛中间体,吡喃易于重排,缺乏具有苄基丁基醚的芳烃中间体的证据以及其他间接证据,导致提出了分子内途径生成自由基对的提议。崩解为同质的羰基化物。