Room-Temperature Carbon-Sulfur Bond Activation by a Reactive (dippe)Pd Fragment

被引：16

作者：

Munjanja, Lloyd ^{[1
]}

Brennessel, William W. ^{[1
]}

Jones, William D. ^{[1
]}

机构：

[1] Univ Rochester, Dept Chem, Rochester, NY 14627 USA

来源：

ORGANOMETALLICS | 2015年 / 34卷 / 09期

基金：

美国国家科学基金会;

关键词：

PD-C BOND; MODEL SYSTEMS; COMPLEXES; HYDROGENATION; INSERTION; ALKYNES; TRIS(TRIETHYLPHOSPHINE)PLATINUM(0); DIBENZOTHIOPHENE; DESULFURIZATION; BENZOTHIOPHENE;

D O I：

10.1021/acs.organomet.5b00194

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reactivity of [Pd(dippe)(mu-H)](2) (1) and [(mu-dippe)Pd](2) (2) (dippe = 1,2-bis(diisopropylphosphino)ethane) toward C-S bonds in thiophene derivatives and thioethers was investigated, which led to C-S bond activation products. The thiapalladacycles derived from thiophenic substrates were fully characterized by H-1, P-31, and C-13 NMR spectroscopy, elemental analysis, and X-ray diffraction. The stability of the C-S insertion products was probed by performing competition experiments which follow the thermodynamic stability order (dippe)Pd(kappa C-2,S-benzothiophene) (6) > (dippe)Pd(kappa C-2,S-dibenzothiophene) (8) > (dippe)Pd(kappa C-2,S-thiophene) (3). The reactivity of the thiapalladacycles with small molecules such as H-2, CO, and alkynes was investigated.

引用

页码：1716 / 1724

页数：9

共 33 条

[1] Monoinsertion of but-2-ynedioic acid dimethyl ester into palladium-carbon σ bonds of cyclopalladated compounds derived from biphenyl-2-ylamine:: X-ray molecular structure of biphenyl-2-yl-(2,4,6-trimethoxy-benzylidene)-amine [J].