Visible Light-induced C–C Bond Cleavage in a Multicomponent Reaction Cascade Allowing Acylations of Sulfoximines with Ketones

2021 ◽  
Author(s):  
Yongliang Tu ◽  
Duo Zhang ◽  
Peng Shi ◽  
Chenyang Wang ◽  
Ding Ma ◽  
...  
Keyword(s):  
Visible Light ◽  
Ambient Temperature ◽  
Multicomponent Reaction ◽  
Bond Cleavage ◽  
Photo Catalyst ◽  
Cleavage Reactions

Visible light induces C–C-bond cleavage reactions of ketones, which can be utilized for N-acylations of sulfoximines. No (photo)catalyst is required, and the reactions occur at ambient temperature in air. The...

ChemInform Abstract: Oxygen Switch in Visible-Light Photoredox Catalysis: Radical Additions and Cyclizations and Unexpected C-C-Bond Cleavage Reactions.

ChemInform ◽  
2013 ◽  
Vol 44 (29) ◽  
pp. no-no
Author(s):  
Shaoqun Zhu ◽  
Arindam Das ◽  
Lan Bui ◽  
Hanjun Zhou ◽  
Dennis P. Curran ◽  
...  
Keyword(s):  
Visible Light ◽  
Bond Cleavage ◽  
Photoredox Catalysis ◽  
Cleavage Reactions

Oxygen Switch in Visible-Light Photoredox Catalysis: Radical Additions and Cyclizations and Unexpected C–C-Bond Cleavage Reactions

2013 ◽  
Vol 135 (5) ◽  
pp. 1823-1829 ◽  
Author(s):  
Shaoqun Zhu ◽  
Arindam Das ◽  
Lan Bui ◽  
Hanjun Zhou ◽  
Dennis P. Curran ◽  
...  
Keyword(s):  
Visible Light ◽  
Bond Cleavage ◽  
Photoredox Catalysis ◽  
Cleavage Reactions

Hydrogenation-dehydrogenation and cleavage functions of hydrorefining catalysts studied by the reaction of tetrahydrothiophene

1986 ◽  
Vol 51 (12) ◽  
pp. 2770-2780 ◽  
Author(s):  
Alexandra Drahorádová ◽  
Miroslav Zdražil
Keyword(s):  
Activated Carbon ◽  
Catalyst Surface ◽  
Bond Cleavage ◽  
Unsaturated Hydrocarbons ◽  
Cleavage Reactions

The reaction of tetrahydrothiophene in a stream of nitrogen was used to study the relations between dehydrogenation and C-S cleavage reactions on sulphided Co-Mo/Al2O3 catalysts. The course of the reaction was compared for Co-Mo catalysts supported on alumina and activated carbon, for alumina alone as well as for a Pt/C catalyst. The effect of substitution of nitrogen for hydrogen, of the addition of water to the feed, of pre-sulphidation of catalysts and their deactivation by coking on the rate and selectivity of the reaction were also investigated. The results showed that hydrogenation-dehydrogenation and dehydrosulphurization activity of the sulphide catalysts have the same origin. Hydrogen accelerates dehydrosulphurization on the sulphide catalysts by removing sulphur and unsaturated hydrocarbons formed on catalyst surface by C-S bond cleavage reactions.

Photosensitizer-Free Synthesis of β-Keto Sulfones via Visible-Light-Induced Oxysulfonylation of Alkenes with Sulfonic Acids

2021 ◽  
Author(s):  
Zhen Peng ◽  
Yun-Yun Hong ◽  
Sha Peng ◽  
Xiang-Qin Xu ◽  
Shan-Shan Tang ◽  
...  
Keyword(s):  
Visible Light ◽  
Ambient Temperature ◽  
Sulfonic Acids ◽  
Environment Friendly

An practical and environment-friendly methodology for the construction of β-ketosulfones through visible-light induced direct oxysulfonylation of alkenes with sulfonic acids at ambient temperature under open-air conditions was developed. Most importantly,...

Reactions of 1,8-bis(diphenylphosphino)naphthalene with ruthenium cluster carbonyls: C–H and C–P bond cleavage reactions

2004 ◽  
Vol 357 (6) ◽  
pp. 1805-1812 ◽  
Author(s):  
Michael I. Bruce ◽  
Paul A. Humphrey ◽  
Sakir Okucu ◽  
Reinhard Schmutzler ◽  
Brian W. Skelton ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
Ruthenium Cluster ◽  
Cleavage Reactions
Sign in / Sign up

Export Citation Format

Share Document