5,6-and 6,6-Membered Palladium(II) Pincer Complexes Based on Functionalized Carboxamides with Ancillary Sulfur and Nitrogen Donors

被引：14

作者：

Churusova, Svetlana G. ^{[1
]}

Aleksanyan, Diana V. ^{[1
]}

Vasil'ev, Andrei A. ^{[2
]}

Nelyubina, Yulia V. ^{[1
]}

Novikov, Valentin V. ^{[1
]}

Pavlov, Alexander A. ^{[1
]}

Denisov, Gleb L. ^{[1
,3
]}

Klemenkova, Zinaida S. ^{[1
]}

Kozlov, Vladimir A. ^{[1
]}

机构：

[1] Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, Ul Vavilova 28, Moscow 119991, Russia

[2] Russian Acad Sci, ND Zelinsky Inst Organ Chem, Leninskii Pr 47, Moscow 119991, Russia

[3] Russian Acad Sci, Higher Chem Coll, Miusskaya Pl 9, Moscow 125047, Russia

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2016年 / 33期

关键词：

Pincer ligands; Amides; Palladium; Cross-coupling; CROSS-COUPLING REACTION; HECK-TYPE REACTIONS; LIGANDS; CATALYSIS; PALLADACYCLES; COORDINATION; METALS; PD(II);

D O I：

10.1002/ejic.201601093

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

New multidentate ligands have been synthesized by the condensation of 2-(methylsulfanyl)benzoyl chloride with a range of amines bearing ancillary N or S donors. In reactions with PdCl2(NCPh)(2), the ligands smoothly underwent direct cyclopalladation to give pincer complexes with 5,6- or 6,6-membered fused metallocycles. The oxidation of the sulfide ligands with H2O2 afforded the corresponding sulfoxide derivatives, which readily formed analogous pincer complexes with the Pd-II ions. The realization of (3)-S,N,X coordination (X = N or S) was confirmed by multinuclear NMR and IR spectroscopic data and, in some cases, X-ray crystallography. An unusual dynamic behavior of the 6,6-membered S,N,S complex with an organophosphorus ligand was additionally studied by the ROESY technique. All of the palladocycles obtained were tested as precatalysts for the Suzuki cross-coupling of aryl bromides with arylboronic acids, which allowed us to evaluate the main structure-activity relationships.

引用

页码：5271 / 5280

页数：10

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