scholarly journals Ultra-small palladium nano-particles synthesized using bulky S/Se and N donor ligands as a stabilizer: application as catalysts for Suzuki–Miyaura coupling

RSC Advances ◽  
2019 ◽  
Vol 9 (39) ◽  
pp. 22313-22319 ◽  
Author(s):  
Preeti Oswal ◽  
Aayushi Arora ◽  
Jolly Kaushal ◽  
Gyandshwar Kumar Rao ◽  
Sushil Kumar ◽  
...  
Keyword(s):  
Suzuki Coupling ◽  
Pd Nanoparticles ◽  
Nano Particles ◽  
Secondary Amines ◽  
Donor Ligands ◽  
Catalyst Loading ◽  
Aryl Chlorides ◽  
Low Catalyst Loading

Monodispersed ultrasmall Pd nanoparticles synthesized utilizing bulky organochalcogen secondary amines as stabilizers and application in Suzuki coupling of aryl chlorides at low catalyst loading.

Bis[N,N′-(2-indanolyl)]-1,5-diazacyclooctane as Unique Metal Ligand: Self-Assembly of Palladium Nanoparticles and Catalytic Reactivity on C–C Bond Formation

Synthesis ◽  
2017 ◽  
Vol 50 (05) ◽  
pp. 1097-1104 ◽  
Author(s):  
Katsunori Tanaka ◽  
Katsumasa Fujiki
Keyword(s):  
Heterogeneous Catalyst ◽  
Self Assembly ◽  
Palladium Nanoparticles ◽  
Bond Formation ◽  
Suzuki Coupling ◽  
Catalyst Loading ◽  
Loading Conditions ◽  
Catalytic Reactivity ◽  
Low Catalyst Loading ◽  
Metal Ligand

A previously unreported 1,5-diazacyclooctane-palladium(II) complex was synthesized using bis[N,N′-(2-indanolyl)]-1,5-diazacyclooctane, which was readily prepared via a novel [4+4] homocyclization of the unsaturated imine intermediate generated from acrolein and 1-amino-2-indanol. Interestingly, the 1,5-diazacyclooctane-palladium(II) complex self-assembled to form palladium nanoparticles. This approach readily provided palladium nanoparticles simply by heating a mixture of palladium(II) acetate and bis[N,N′-(2-indanolyl)]-1,4-diazacyclooctane in dichloroethane at mild temperatures. The 1,5-diazacyclooctane-derivative-palladium nanoparticles were successfully deployed in synthetic applications as a heterogeneous catalyst, facilitating Suzuki coupling and a challenging C–C bond formation via C(sp3)–H activation under low catalyst loading conditions.

ChemInform Abstract: A Recyclable “Boomerang” Linear Polystyrene-Stabilized Pd Nanoparticles for the Suzuki Coupling Reaction of Aryl Chlorides in Water.

ChemInform ◽  
2013 ◽  
Vol 45 (1) ◽  
pp. no-no
Author(s):  
Atsushi Ohtaka ◽  
Erina Sakaguchi ◽  
Tomohiro Yamaguchi ◽  
Go Hamasaka ◽  
Yasuhiro Uozumi ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Suzuki Coupling ◽  
Pd Nanoparticles ◽  
Suzuki Coupling Reaction ◽  
Aryl Chlorides

Iron-catalyzed C(sp2)–C(sp3) cross-coupling at low catalyst loading

2019 ◽  
Vol 9 (5) ◽  
pp. 1092-1097 ◽  
Author(s):  
Elwira Bisz ◽  
Marlena Kardela ◽  
Aleksandra Piontek ◽  
Michal Szostak
Keyword(s):  
Cross Coupling ◽  
Grignard Reagents ◽  
Catalyst Loading ◽  
Aryl Chlorides ◽  
Simple Protocol ◽  
Low Catalyst Loading

An operationally-simple protocol for the selective C(sp2)–C(sp3) iron-catalyzed cross-coupling of aryl chlorides with Grignard reagents at low catalyst loading is reported.

A Recyclable “Boomerang” Linear Polystyrene-Stabilized Pd Nanoparticles for the Suzuki Coupling Reaction of Aryl Chlorides in Water

ChemCatChem ◽  
2013 ◽  
Vol 5 (8) ◽  
pp. 2167-2169 ◽  
Author(s):  
Atsushi Ohtaka ◽  
Erina Sakaguchi ◽  
Tomohiro Yamaguchi ◽  
Go Hamasaka ◽  
Yasuhiro Uozumi ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Suzuki Coupling ◽  
Pd Nanoparticles ◽  
Suzuki Coupling Reaction ◽  
Aryl Chlorides

scholarly journals Microwave-Assisted Regioselective Suzuki Coupling of 2,4-Dichloropyrimidines with Aryl and Heteroaryl Boronic Acids

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 439
Author(s):  
Ana Dolšak ◽  
Kristjan Mrgole ◽  
Matej Sova
Keyword(s):  
Low Cost ◽  
Coupling Reaction ◽  
Suzuki Coupling ◽  
Boronic Acids ◽  
Catalyst Loading ◽  
Reaction Conditions ◽  
Suzuki Coupling Reaction ◽  
Microwave Assisted ◽  
Synthetic Procedure ◽  
Low Catalyst Loading

Suzuki coupling reaction has been often used for the preparation of a diverse set of substituted pyrimidines. In this study, the Suzuki coupling of 2,4-dichloropyrimidines with aryl and heteroaryl boronic acids was investigated. A thorough screening of reaction conditions and the use of microwave irradiation led to a very efficient and straightforward synthetic procedure providing C4-substituted pyrimidines in good to excellent yields. Short reaction time (15 min) and extremely low catalyst loading (0.5 mol%) are the main advantages of our tetrakis(triphenylphosphine)palladium(0) catalyzed microwave-assisted procedure, which could be used for quick and low-cost regioselective preparation of substituted pyrimidine rings.

Y(OTf)3-catalyzed Phosphorylation of 2H-Chromene Hemiacetals with P(O)-H compounds to 2-Phosphorylated 2H-Chromenes

2021 ◽  
Author(s):  
Long Chen ◽  
Shi-Lu Zheng ◽  
Yun-Xiang Zou ◽  
Zhong Wen ◽  
Jiafu Lin ◽  
...  
Keyword(s):  
Catalyst Loading ◽  
Facile Synthesis ◽  
Reaction Conditions ◽  
Low Catalyst Loading

Facile synthesis of 2-phosphorylated 2H-chromenes has been accomplished herein via a Y(OTf)3-catalyzed dehydrative coupling of 2H-chromene hemiacetals with P(O)-H compounds. This protocol features low catalyst loading, mild reaction conditions, broad...

Hydrosilylation and Mukaiyama Aldol-type Reactions of Imine and Quinoline Derivatives Catalyzed by a Mesoionic Carbene-Stabilized Borenium Ion

2021 ◽  
Author(s):  
Joshua J. Clarke ◽  
Karthik Devaraj ◽  
Brian Bestvater ◽  
Ryoto Kojima ◽  
Patrick Eisenberger ◽  
...  
Keyword(s):  
Room Temperature ◽  
Secondary Amines ◽  
Catalyst Loading ◽  
Quinoline Derivatives ◽  
Mukaiyama Aldol

Aldimines and ketimines containing electron-donating and electron-withdrawing groups can be hydrosilylated with borenium catalysts at as low as 1 mol% catalyst loading at room temperature, providing the corresponding secondary amines...

scholarly journals Enantioselective amination of 4-alkylisoquinoline-1,3(2H,4H)-dione derivatives

RSC Advances ◽  
2020 ◽  
Vol 10 (70) ◽  
pp. 42912-42915
Author(s):  
Cheng Cheng ◽  
Ying-Xian Li ◽  
Xue-Min Jia ◽  
Ji-Quan Zhang ◽  
Yong-Long Zhao ◽  
...  
Keyword(s):  
Catalyst Loading ◽  
Low Catalyst Loading

A mild and efficient enantioselective amination of 4-alkylisoquinoline-1,3(2H,4H)-dione derivatives was established and a broad range of amination products were prepared in excellent yields and ee values with low catalyst loading.

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