Copper-catalyzed oxidative dehydrogenative N–N bond formation for the synthesis of N,N′-diarylindazol-3-ones

2017 ◽  
Vol 4 (2) ◽  
pp. 229-231 ◽  
Author(s):  
Guo Dai ◽  
Luo Yang ◽  
Wang Zhou
Keyword(s):  
Catalytic System ◽  
Bond Formation ◽  
Efficient Synthesis ◽  
Dehydrogenative Coupling

A general copper/air catalytic system for efficient synthesis of N,N′-diarylindazol-3-ones via oxidative dehydrogenative coupling was developed.

Nickel-catalyzed regioselective C–H acylation of chelating arenes: a new catalytic system for C–C bond formation via a radical process and its mechanistic explorations

2019 ◽  
Vol 43 (30) ◽  
pp. 12152-12158 ◽  
Author(s):  
Ze-lin Li ◽  
Peng-yu Wu ◽  
Kang-kang Sun ◽  
Chun Cai
Keyword(s):  
Catalytic System ◽  
Bond Formation ◽  
Radical Process ◽  
Dehydrogenative Coupling ◽  
Coupling Strategy

An unprecedented acylation at the ortho C–H bond of chelating arenes via the Ni(ii)-catalyzed cross dehydrogenative coupling strategy has been developed here.

scholarly journals C–C (alkynylation) vs C–O (ether) bond formation under Pd/C–Cu catalysis: synthesis and pharmacological evaluation of 4-alkynylthieno[2,3-d]pyrimidines

2011 ◽  
Vol 7 ◽  
pp. 338-345 ◽  
Author(s):  
Dhilli Rao Gorja ◽  
K Shiva Kumar ◽  
K Mukkanti ◽  
Manojit Pal
Keyword(s):  
Cytotoxic Activity ◽  
Catalytic System ◽  
High Selectivity ◽  
Bond Formation ◽  
Terminal Alkynes ◽  
Ether Bond ◽  
Pharmacological Evaluation

The Pd/C–CuI–PPh3 catalytic system facilitated C–C bond formation between 4-chlorothieno[2,3-d]pyrimidines and terminal alkynes in methanol with high selectivity without generating any significant side products arising from C–O bond formation between the chloro compounds and methanol. A variety of novel 4-alkynylthieno[2,3- d]pyrimidines were prepared via alkynylation of 4-chlorothieno[2,3-d]pyrimidines in good to excellent yields. Some of the compounds synthesized were tested for cytotoxic activity in vitro.

scholarly journals Nitrosonium ion catalysis: aerobic, metal-free cross-dehydrogenative carbon–heteroatom bond formation

2018 ◽  
Vol 54 (92) ◽  
pp. 13022-13025 ◽  
Author(s):  
Luis Bering ◽  
Laura D’Ottavio ◽  
Giedre Sirvinskaite ◽  
Andrey P. Antonchick
Keyword(s):  
Bond Formation ◽  
Environmentally Benign ◽  
Reaction Conditions ◽  
Metal Free ◽  
Dehydrogenative Coupling ◽  
Nitrosonium Ion

Catalytic cross-dehydrogenative coupling of heteroarenes with thiophenols and phenothiazines has been developed under mild and environmentally benign reaction conditions.

Highly dispersed Ni2P nanoparticles on N,P-codoped carbon for efficient cross-dehydrogenative coupling to access alkynyl thioethers

2020 ◽  
Vol 22 (3) ◽  
pp. 651-656 ◽  
Author(s):  
Tao Song ◽  
Peng Ren ◽  
Jianliang Xiao ◽  
Youzhu Yuan ◽  
Yong Yang
Keyword(s):  
Carbon Material ◽  
Efficient Synthesis ◽  
Dehydrogenative Coupling ◽  
Ligand Free ◽  
Highly Dispersed

A Ni2P nanoparticle dispersed on N,P-codoped carbon material was developed for efficient synthesis of alkynyl thioethers via a cross-dehydrogenative coupling (CDC) strategy under base- and ligand-free conditions using air as the oxidant.

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