α-Substituted Benzylic Complexes of Palladium(II) as Precursors of Palladium Hydrides
作者:Blanca Martín-Ruiz、Ignacio Pérez-Ortega、Ana C. Albéniz
DOI:10.1021/acs.organomet.8b00066
日期:2018.6.11
The adoption of a pseudoallylic (η3) form makes palladium benzylic derivatives a class of stabilized palladium alkyls that can undergo β-H elimination reactions in a more controlled way. α-(Pentafluorophenylmethyl)benzyl palladium complexes have been studied, and they decompose by β-H elimination to give palladium hydrides that, depending on the auxiliary ligands, can: (a) transmetalate to another
通过一个pseudoallylic的(η 3)形式使钯苄基衍生物成为一类稳定的钯烷基,可以以更可控的方式进行β-H消除反应。已经研究了α-(五氟苯基甲基)苄基钯配合物,它们通过β-H消除反应分解生成氢化钯,取决于辅助配体,氢化钯可以:(a)过渡金属化为另一个钯原子,并通过还原消除进行氢化产品; 对于桥接配体(即卤素)和低配位配体的组合,此方法是有利的。(b)用作氢化物源,并被二烯捕获,得到钯烯丙基衍生物。一氧化碳的存在不会引起β-H消除反应,仅观察到CO插入Pd-苄基键以生成酰基衍生物。