Carbon Monoxide Coupling Reactions via a Frustrated Lewis Pair-Derived η2-Formyl Borane

2021 ◽  
Vol 143 (37) ◽  
pp. 14992-14997
Author(s):  
Qiu Sun ◽  
Constantin G. Daniliuc ◽  
Klaus Bergander ◽  
Gerald Kehr ◽  
Gerhard Erker
2021 ◽  
Author(s):  
Clemens Krempner ◽  
Chamila Manankandayalage ◽  
Daniel K Unruh

Utilizing an intramolecular frustrated Lewis pair (FLP) decorated with a strongly donating guanidino moiety enabled the formation of a thermally remarkably stable FLP-CO adduct, which at 120°C underwent CO migration...


2020 ◽  
Vol 132 (30) ◽  
pp. 12577-12583
Author(s):  
Jun Li ◽  
Christian Mück‐Lichtenfeld ◽  
Constantin G. Daniliuc ◽  
Gerald Kehr ◽  
Gerhard Erker

2020 ◽  
Vol 34 (3) ◽  
Author(s):  
Samaresh Layek ◽  
Bhumika Agrahari ◽  
Rakesh Ganguly ◽  
Parthasarathi Das ◽  
Devendra D. Pathak

2016 ◽  
Vol 128 (32) ◽  
pp. 9362-9365 ◽  
Author(s):  
Ke‐Yin Ye ◽  
Gerald Kehr ◽  
Constantin G. Daniliuc ◽  
Lei Liu ◽  
Stefan Grimme ◽  
...  

Synlett ◽  
2018 ◽  
Vol 29 (06) ◽  
pp. 717-722 ◽  
Author(s):  
Teruyuki Kondo ◽  
Ryosuke Taniguchi ◽  
Yu Kimura

Ru3(CO)12-catalyzed divergent ring-opening coupling reactions of a cyclopropenone with methyl acrylate (an electron-deficient alkene) are developed. Under an argon atmosphere, a decarbonylative linear codimer is obtained, while cyclopentenones are obtained under carbon monoxide (20 atm) without decarbonylation. While ruthenium complexes show no catalytic activity for the ring-opening cocyclization of cyclopropenones with ethylene (20 atm) or bicyclo[2.2.1]hept-2-ene (2-norbornene), rhodium complexes, especially [RhCl(η4-1,5-cod)]2, show high catalytic activity for the desired cocyclization reactions to give the corresponding cyclopentenones in high yields and selectivities. In addition, [RhCl(η4-1,5-cod)]2 realizes the catalytic ring-opening co­cyclization of cyclopropenones with internal alkynes to give the corresponding cyclopentadienones. In all these reactions, ruthena- or rhodacyclobutenones are considered to be key intermediates, generated by strain-driven oxidative addition of a cyclopropenone C–C bond to an ­active ruthenium or rhodium species.


Author(s):  
Irshad A. Wani ◽  
Sapan K. Jain ◽  
Huma Khan ◽  
Abul Kalam ◽  
Tokeer Ahmad

Abstract: This review summarizes the utilization of gold nanoparticles as efficient catalysts for a variety of chemical transformations like oxidation, hydrogenation and coupling reactions as compared to the conventional catalytic materials. This review explores the gold nanoparticles based catalysts for the liquid phase chemo-selective organic transformations which are proving to be evergreen reactions and has importance for industrial applications. Apart from organic transformation reactions gold nanoparticles has been found to be applicable in removing the atmospheric contaminants and improving the efficiency of the fuel cells by removing the impurities of carbon monoxide.


Author(s):  
Takahide Fukuyama ◽  
Md Taifur Rahman ◽  
Naoya Kamata ◽  
Ilhyong Ryu

Radical-based carbonylation reactions of alkyl halides were conducted in a microflow reactor under pressurized carbon monoxide gas. Good to excellent yields of carbonylated products were obtained via radical formylation, carbonylative cyclization and three-component coupling reactions, using tributyltin hydride or TTMSS as a radical mediator.


Author(s):  
Xiongfei Zheng ◽  
Ili Zulkifly ◽  
Andreas Heilmann ◽  
Caitilín McManus ◽  
Simon Aldridge

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