Group 10B metal chlorides and chalcogenide derivatives of 2-(N-(diphenylphosphino)amino)-4-methylpyridine: Application of Pd(ΙΙ) derivative as pre-catalyst in the Suzuki cross-coupling reaction

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2024-08-08 DOI:10.1016/j.poly.2024.117171

Harbi Tomah Al-Masri , Ziad Moussa , Akram Ali Almejled

引用次数: 0

Abstract

Oxidation of 2-(N-(diphenylphosphino)amino)-4-methylpyridine (1) with elemental sulfur or gray selenium afforded the corresponding sulfide and selenide (4-CH₃)C₆H₃N-2-NH(P(E)Ph₂) [E=S(2), Se(3)], respectively. The reaction of 1 with group-10B metal chlorides afforded cis-MCl₂[1-κ²P,N^py][M=Pd(4), Pt(5)], and the side product trans-PdCl₂[(4-CH₃)C₆H₃N-2-NH(P(O)Ph₂)-κN^py]₂ (6), respectively. Compounds 1–5 have been isolated and characterized by multinuclear NMR spectroscopy (¹H, ¹³C, ³¹P NMR), infrared, and elemental analysis. Crystal-structure determinations were performed on 2, 5, and 6. The role of 4 as a pre-catalyst in the Suzuki cross-coupling reaction was additionally studied.

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2-(N-(二苯基膦)氨基)-4-甲基吡啶的 10B 族金属氯化物和卤化物衍生物：Pd(ΙΙ)衍生物作为前催化剂在铃木交叉偶联反应中的应用

用元素硫或灰硒氧化 2-(N-(二苯基膦)氨基)-4-甲基吡啶(1)，可分别得到相应的硫化物和硒化物(4-CH3)C6H3N-2-NH(P(E)Ph2) [E=S(2)，Se(3)]。1 与第 10B 族金属氯化物反应，分别得到顺式-MCl2[1-κ2P,Npy][M=Pd(4), Pt(5)]和副产物反式-PdCl2[(4-CH3)C6H3N-2-NH(P(O)Ph2)-κNpy]2 (6)。化合物 1-5 已经分离出来，并通过多核核磁共振光谱（1H、13C、31P NMR）、红外线和元素分析进行了表征。对 2、5 和 6 进行了晶体结构测定。此外，还研究了 4 在铃木交叉偶联反应中作为前催化剂的作用。

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

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