Amido PNP pincer complexes of palladium(II) and platinum(II): Synthesis, structure, and reactivity
作者:Mei‐Hui Huang、Wei‐Ying Lee、Xue‐Ru Zou、Chia‐Chin Lee、Sheng‐Bo Hong、Lan‐Chang Liang
DOI:10.1002/aoc.6128
日期:2021.3
The synthesis of a series of divalent palladium and platinum complexes containing amido PNP pincer ligands of the type [N(o‐C6H4PR2)2]− (R = Ph (1a), iPr (1b)) is reported. Metathetical reactions of [1a–b]PdCl or [1a–b]PtCl with a variety of alkyl Grignard reagents or LiHBEt3 in ethereal or arene solutions generate their corresponding alkyl or hydride complexes [1a]PdR1 (R1 = Me, Et, nBu), [1b]PdR1
报道了一系列含有[N(o- C 6 H 4 PR 2)2 ] -(R = Ph(1a),i Pr(1b))型酰胺基PNP钳形配体的二价钯和铂配合物的合成。[ 1a–b ] PdCl或[ 1a–b ] PtCl与多种烷基格氏试剂或LiHBEt 3在醚或芳烃溶液中的易位反应生成其相应的烷基或氢化物络合物[ 1a ] PdR 1(R 1 = Me,Et ,n Bu),[ 1b ] PdR1(R 1 =甲基,乙基,H),[ 1A ] PTR 1(R 1 =甲基,乙基,Ñ卜,Ñ己基,1H),和[ 1B ] PTR 1(R 1 = Me中的H)。尽管这些有机金属配合物都是热稳定的,包括即使在高温下也包含β-氢原子的那些,但化合物[ 1a ] PdH和[ 1b ] PtR 1(R 1 = Et,n Bu,n Hexyl)由于易分离而无法分离。分解。讨论了这些配合物的稳定性和反应性。氯[ 1a在Kumada偶联剂中,]