Reaction of carbon monoxide with N-lithioketimines derived by the addition of alkyllithium to ortho-substituted benzonitriles. Diverse courses of cyclization via carbonyl anions
作者:Hidetomo Kai、Masakazu Yamauchi、Shinji Murai
DOI:10.1016/s0040-4039(97)10412-9
日期:1997.12
situ from 2-substituted benzonitriles and t-BuLi, reacted with carbon monoxide to afford five-, six- or seven-membered cyclic products, involving participation by the ortho substituents. The reactions represent new selective transformations of carbonyllithium intermediate which previously were observed to lead to complicated reactions.
由2-取代的苄腈和t-BuLi原位生成的N-硫代酮亚胺与一氧化碳反应生成五元,六元或七元环状产物,涉及邻位取代基的参与。该反应代表了羰基锂中间体的新的选择性转化,其先前被观察到会导致复杂的反应。