作者:R. Ian Fryer、Julia C. Pinto、Ravindra B. Upasani
DOI:10.1002/jhet.5570300417
日期:1993.7
amide proton. This observation would exclude the accepted mechanism for Wittig-Horner type reactions (four membered spiro ring intermediate), and an alternate mechanism, that involves cleavage of the anion prior to addition of the reagent to substrate is proposed.
用Wittig-Horner试剂处理1,4-苯并二氮杂pin酮衍生物,以合理的收率在酰胺羰基碳原子上形成了所需的碳碳键。对该反应的检查表明,只能使用仲酰胺,表明该过程需要酰胺质子。该观察结果排除了Wittig-Horner型反应(四元螺环中间体)的公认机理,并提出了另一种机理,该机理涉及在将试剂添加至底物之前裂解阴离子。