Synthesis of imidazopyridine-fused indoles via one-pot sequential Knoevenagel condensation and cross dehydrogenative coupling

2018 ◽  
Vol 16 (33) ◽  
pp. 6123-6132 ◽  
Author(s):  
Vikki N. Shinde ◽  
Shiv Dhiman ◽  
Rangan Krishnan ◽  
Dalip Kumar ◽  
Anil Kumar
Keyword(s):  
Knoevenagel Condensation ◽  
Coupling Reaction ◽  
One Pot ◽  
Dehydrogenative Coupling ◽  
Palladium Catalyzed

Synthesis of imidazopyridine-fused indoles has been developed via one-pot sequential Knoevenagel condensation followed by palladium-catalyzed intramolecular cross-dehydrogenative coupling reaction.

scholarly journals One-pot synthesis of new $N$-(1-methylpyridin-4(1$H)$-ylidene)amine ligands for palladium-catalyzed Heck coupling reaction

2018 ◽  
Vol 42 ◽  
pp. 63-74 ◽  
Author(s):  
Muhammad ZAFAR ◽  
Sabeen ZAHRA ◽  
Muhammad TAHIR ◽  
Ehsan MUGHAL ◽  
Muhammad NAZAR ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Heck Coupling ◽  
One Pot ◽  
One Pot Synthesis ◽  
Palladium Catalyzed ◽  
Amine Ligands

scholarly journals Combustion-Synthesized Porous CuO-CeO2-SiO2 Composites as Solid Catalysts for the Alkenylation of C(sp3)-H Bonds Adjacent to a Heteroatom via Cross-Dehydrogenative Coupling

Catalysts ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1252
Author(s):  
Ha V. Le ◽  
Vy B. Nguyen ◽  
Hai H. Pham ◽  
Khoa D. Nguyen ◽  
Phuoc H. Ho ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
Coupling Reaction ◽  
Catalytic Performance ◽  
Composite Catalyst ◽  
High Porosity ◽  
One Pot ◽  
General Validity ◽  
Solid Catalysts ◽  
Surface Areas ◽  
Dehydrogenative Coupling

A series of mixed oxides of CuO, CeO2, and SiO2 were prepared by gel combustion and employed for the first time as efficient solid catalysts in a solvent-less liquid-phase cross-dehydrogenative coupling. The facile one-pot catalyst synthesis resulted in highly porous materials presenting large specific surface areas and strong metal–support interactions. The interaction with highly dispersed CeO2 enhanced the redox properties of the CuO species. The CuO-CeO2-SiO2 composites exhibited excellent catalytic performance for the selective coupling between 1,1-diphenylethylene and tetrahydrofuran with a yield up to 85% of 2-(2,2-diphenylvinyl)-tetrahydrofuran in the presence of di-tert-butyl peroxide (DTPB) and KI. Albeit both CuO and CeO2 species are proved to be responsible for the catalytic conversion, a great synergistic improvement in the catalytic activity was obtained by extended contact between the oxide phases by high porosity in comparison with the reactions using individual Cu or Ce catalysts. The activity of the composite catalyst was shown to be highly stable after five successive reaction cycles. Furthermore, the study scope was extended to the synthesis of different derivatives via composite-catalyzed coupling of C(sp2)-H with C(sp3-H) adjacent to a heteroatom. The good yields recorded proved the general validity of this composite for the cross-dehydrogenative coupling reaction rarely performed on solid catalysts.

Palladium-Catalyzed Dehydrogenative Coupling Reaction of Terminal Alkynes with Unactivated Alkenes

2017 ◽  
Vol 65 (1) ◽  
pp. 117-121 ◽  
Author(s):  
Akira Yada ◽  
Shoki Nishi ◽  
Yuta Sato ◽  
Sakina Ichinoseki ◽  
Masahiro Murakami
Keyword(s):  
Coupling Reaction ◽  
Terminal Alkynes ◽  
Dehydrogenative Coupling ◽  
Palladium Catalyzed

ChemInform Abstract: Palladium-Catalyzed Cross-Coupling Reaction of N-Alkoxyimidoyl Bromides and Its Application to One-Pot Synthesis of N-Arylamines.

ChemInform ◽  
2012 ◽  
Vol 43 (9) ◽  
pp. no-no
Author(s):  
Masafumi Ueda ◽  
Shoichi Sugita ◽  
Naoki Aoi ◽  
Aoi Sato ◽  
Yuki Ikeda ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
One Pot ◽  
One Pot Synthesis ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed

One-Pot Palladium-Catalyzed Cross-Coupling Reaction of Aryl Iodides with Stannylarsanes and Stannylstibanes

2003 ◽  
Vol 5 (15) ◽  
pp. 2731-2734 ◽  
Author(s):  
Mariana Bonaterra ◽  
Sandra E. Martín ◽  
Roberto A. Rossi
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
One Pot ◽  
Aryl Iodides ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed
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