Copper nitrate-catalyzed oxidative coupling of unactivated C(sp3)–H bonds of ethers and alkanes with N-hydroxyphthalimide: synthesis of N-hydroxyimide esters

2017 ◽  
Vol 15 (46) ◽  
pp. 9875-9879 ◽  
Author(s):  
Xiaohe Xu ◽  
Jian Sun ◽  
Yuyan Lin ◽  
Jingya Cheng ◽  
Pingping Li ◽  
...  
Keyword(s):  
Catalytic System ◽  
Oxidative Coupling ◽  
Copper Nitrate ◽  
Dehydrogenative Coupling

A novel oxygenative cross dehydrogenative coupling of ethers and alkanes with NHPI under a copper nitrate/oxygen catalytic system is described.

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.

scholarly journals Direct Dehydrogenative Coupling of Alcohols with Hydrosilanes Promoted by Sodium tri(sec-butyl)borohydride

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 618 ◽  
Author(s):  
Maciej Skrodzki ◽  
Maciej Zaranek ◽  
Samanta Witomska ◽  
Piotr Pawluc
Keyword(s):  
Organic Synthesis ◽  
Catalytic System ◽  
Mild Conditions ◽  
Dehydrogenative Coupling ◽  
Stoichiometric Reaction ◽  
Work Up

Alkoxysilanes find application in many areas of chemistry ranging from research-scale organic synthesis to multi-ton production of materials. Classically, they are obtained in stoichiometric reaction of alcoholysis of chlorosilanes, however, recent years brought development in the field of direct dehydrogenative coupling of hydrosilanes with alcohols, which is a more atom-economic and benign alternative to the former process. In this paper, we report the use of sodium tri(sec-butyl)borohydride as a convenient promoter of this reaction. Exemplary syntheses carried out under mild conditions and without additional solvents, followed by very easy work-up procedure, show excellent potential for application of so devised catalytic system.

The regioselective coupling of 2-arylquinazolinone C–H with aldehydes and benzyl alcohols under oxidative conditions

2020 ◽  
Vol 44 (39) ◽  
pp. 16697-16701
Author(s):  
Umesh A. Kshirsagar ◽  
Deepali S. Waghmare ◽  
Shrikant D. Tambe
Keyword(s):  
Benzyl Alcohol ◽  
Oxidative Coupling ◽  
Benzyl Alcohols ◽  
Dehydrogenative Coupling ◽  
Palladium Catalyzed ◽  
Directing Group

Palladium catalyzed direct and regioselective cross dehydrogenative coupling (CDC) of 2-arylquinazoline-4-one endowed with a quinazolinone nucleus as an inherent directing group with aldehyde and oxidative coupling with benzyl alcohol was developed.

[Bmim]PF6/RuCl3·xH2O: a novel and recyclable catalytic system for the oxidative coupling of β-naphthols

2003 ◽  
Vol 27 (12) ◽  
pp. 1684-1686 ◽  
Author(s):  
Jhillu S. Yadav ◽  
Basi V. S. Reddy ◽  
Kamakolanu Uma Gayathri ◽  
Attaluri R. Prasad
Keyword(s):  
Catalytic System ◽  
Oxidative Coupling

scholarly journals Rhodium-Catalyzed Oxidative Annulation of 2- or 7-Arylindoles with Alkenes/Alkynes Using Molecular Oxygen as the Sole Oxidant Enabled by Quaternary Ammonium Salt

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5329
Author(s):  
Weihui Zhuang ◽  
Jiaqi Zhang ◽  
Yanping Zheng ◽  
Qiufeng Huang
Keyword(s):  
Molecular Oxygen ◽  
Ammonium Salt ◽  
Catalytic System ◽  
Quaternary Ammonium ◽  
Atmospheric Pressure ◽  
Quaternary Ammonium Salt ◽  
Michael Reaction ◽  
Mechanistic Studies ◽  
Dehydrogenative Coupling

Developing an efficient catalytic system using molecular oxygen as the oxidant for rhodium-catalyzed cross-dehydrogenative coupling remains highly desirable. Herein, rhodium-catalyzed oxidative annulation of 2- or 7-phenyl-1H-indoles with alkenes or alkynes to assemble valuable 6H-isoindolo[2,1-a]indoles, pyrrolo[3,2,1-de]phenanthridines, or indolo[2,1-a]isoquinolines using the atmospheric pressure of air as the sole oxidant enabled by quaternary ammonium salt has been accomplished. Mechanistic studies provided evidence for the fast intramolecular aza-Michael reaction and aerobic reoxidation of Rh(I)/Rh(III), facilitated by the addition of quaternary ammonium salt.

Feasibility study of the Mn–Na2WO4/SiO2 catalytic system for the oxidative coupling of methane in a fluidized-bed reactor

2015 ◽  
Vol 5 (2) ◽  
pp. 942-952 ◽  
Author(s):  
S. Sadjadi ◽  
S. Jašo ◽  
H. R. Godini ◽  
S. Arndt ◽  
M. Wollgarten ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Feasibility Study ◽  
Catalytic System ◽  
Oxidative Coupling ◽  
Fluidized Bed Reactor ◽  
Oxidative Coupling Of Methane

The catalytic system Mn–Na2WO4/SiO2, was studied in a miniplant fluidized-bed reactor for oxidative coupling of methane.

Iron(ii)-catalyzed C-2 cyanomethylation of indoles and pyrroles via direct oxidative cross-dehydrogenative coupling with acetonitrile derivatives

2018 ◽  
Vol 5 (7) ◽  
pp. 1129-1134 ◽  
Author(s):  
Kai Qiao ◽  
Dong Zhang ◽  
Kai Zhang ◽  
Xin Yuan ◽  
Ming-Wei Zheng ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Efficient Approach ◽  
Dehydrogenative Coupling

A novel and efficient approach for the C(sp2)–H/C(sp3)–H oxidative coupling of indoles and pyrroles with acetonitrile derivatives was reported by using the Fe(ii) complex.

Sign in / Sign up

Export Citation Format

Share Document