Bulky α-diimine palladium complexes: highly efficient for direct C–H bond arylation of heteroarenes under aerobic conditions

2016 ◽  
Vol 45 (38) ◽  
pp. 14919-14927 ◽  
Author(s):  
Jia-Sheng Ouyang ◽  
Yan-Fang Li ◽  
Dong-Sheng Shen ◽  
Zhuofeng Ke ◽  
Feng-Shou Liu
Keyword(s):  
Palladium Complex ◽  
Palladium Complexes ◽  
Aerobic Conditions ◽  
Highly Efficient

Through the strategy to enhance the bulkiness on both the backbone and the N-aryl moieties, we designed and synthesized a type of bulky α-diimine palladium complex (i.e., {[Ar–NC(R)–C(R)N–Ar]PdCl2, (Ar = 2-benzhydryl-4,6-dimethylphenyl)}, C1, R = H; C2, R = An; C3, R = Ph).

scholarly journals Friedel–Crafts-Type Alkylation of Indoles in Water Using Amphiphilic Resin-Supported 1,10-Phenanthroline–Palladium Complex under Aerobic Conditions

Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 193
Author(s):  
Toshimasa Suzuka ◽  
Yuto Ooshiro ◽  
Kazuhito Ogihara
Keyword(s):  
High Selectivity ◽  
Palladium Complex ◽  
Palladium Complexes ◽  
High Yield ◽  
Alkylation Reaction ◽  
Poly Ethylene Glycol ◽  
Aerobic Conditions ◽  
Palladium Catalyzed ◽  
Poly Ethylene ◽  
Polymeric Catalyst

The palladium-catalyzed Friedel-Crafts-type alkylation of indoles in water has been achieved using amphiphilic polystyrene-poly(ethylene glycol) (PS-PEG) resin-supported phenanthroline-palladium complexes in water under aerobic conditions, affording the corresponding products with good-to-high yield. The polymeric catalyst was also found to promote the C3-alkylation reaction to give a thermodynamic alkylation product with high selectivity. The polymeric catalyst was recovered and reused several times without any loss of catalytic activity.

Unsymmetrical phthalocyanines with cyclopalladated azo functions

2012 ◽  
Vol 16 (02) ◽  
pp. 192-199 ◽  
Author(s):  
H. Yasemin Yenilmez Akkurt ◽  
Ali ihsan Okur ◽  
Ahmet Gül
Keyword(s):  
Organic Solvents ◽  
Column Chromatography ◽  
Spectroscopic Analysis ◽  
Palladium Complex ◽  
Palladium Complexes ◽  
High Solubility ◽  
Synthetic Procedure ◽  
Different Types ◽  
New Compounds ◽  
Very High

In this study, a synthetic procedure for unsymmetrical metallophthalocyanines of the form M[Pc(AB3)], where A and B refer to two different types of peripheral functionality, has been developed and the new compounds have been converted to monomeric and dimeric palladium complexes. Asymmetrically substituted phthalocyanines were synthesized with the well-known statistical condensation method, by using two differently substituted precursors, namely 4-(2-ethoxyethoxy)-1-2-dicyanobenzene (1) and 4-{4-[Z/E]-phenylazo]-1-naphthyl}oxy-1,2-dicyanobenzene (2). Consequently, electron-donating 2-ethoxyethoxy groups and electron-withdrawing palladium complex are present in the same structure. Cyclopalladation was performed with [Pd(PhCN)2Cl2] to yield the bis-μ-chloro-bridged dimers and subsequently, the corresponding monomers were obtained by refluxing with three equivalents of potassium acetylacetonate. The resulting products were purified by column chromatography and characterized by several chemical and spectroscopic analysis methods. All compounds have very high solubility in organic solvents due to the presence of 2-ethoxyethoxy moiety.

ChemInform Abstract: Palladium Complexes Containing Multidentate Phenoxy-Pyridyl-Amidate Ligands: Highly Efficient Catalyst for Heck Coupling of Deactivated Aryl Halides.

ChemInform ◽  
2013 ◽  
Vol 44 (23) ◽  
pp. no-no
Author(s):  
M. Lakshmi Kantam ◽  
Manne Annapurna ◽  
Pravin R. Likhar ◽  
P. Srinivas ◽  
Nedaossadat Mirzadeh ◽  
...  
Keyword(s):  
Palladium Complexes ◽  
Aryl Halides ◽  
Heck Coupling ◽  
Efficient Catalyst ◽  
Highly Efficient

Vis/NIR light driven mild and clean synthesis of disulfides in the presence of Cu2(OH)PO4 under aerobic conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 45416-45419 ◽  
Author(s):  
Sk. Sheriff Shah ◽  
S. Karthik ◽  
N. D. Pradeep Singh
Keyword(s):  
One Pot ◽  
Aerobic Conditions ◽  
Highly Efficient ◽  
Nir Light ◽  
Clean Synthesis

A highly efficient one-pot strategy has been developed for the synthesis of disulfide in the presence of air under the irradiation of Vis/NIR light.

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