In a mechanistically-oriented study, O-α-allenyl esters have been evaluated as potential substrates for Pd-catalyzed carbopalladation/allylic alkylation domino sequences and decarboxylative allenylation reactions. The domino sequence turned out to be feasible only with electron-deficient aryl iodides, thereby showing a narrower potential than that previously observed with the malonamide-based series
在机械导向的研究中,O -α-烯丙基酯已被评估为Pd催化的碳链
钯/烯丙基烷基化多米诺序列和脱羧烯丙基化反应的潜在底物。事实证明,多米诺骨牌序列仅对于缺电子的芳基
碘才可行,从而显示出比以前基于丙二酰胺的系列更窄的电势。还测试了O -α-烯基酯的脱羧烯基化,并证明对于基于β-
酮酯的底物并使用特定的碱性条件是可行的。提出了合理的反应机理来解释所观察到的反应性。