A5026968368- Radical Photochemical Reactions
- Sulfur-Based Synthesis Techniques
- Fluorine in Organic Chemistry
- Chemical Synthesis and Reactions
- Process Optimization and Integration
- Ionic liquids properties and applications
- Oxidative Organic Chemistry Reactions
- Food Chemistry and Fat Analysis
- Catalytic Cross-Coupling Reactions
- Catalytic C–H Functionalization Methods
University of Science and Technology of China
2021-2023
Hefei University
2021
Under visible light irradiation, o-phosphinophenolate functions as an easily accessible photoredox catalyst to activate trifluoromethyl groups in trifluoroacetamides, trifluoroacetates, and (hetero)arenes deliver corresponding difluoromethyl radicals. It works relay with a thiol hydrogen atom transfer (HAT) enable selective defluoroalkylation hydrodefluorination. The reaction allows for the facile synthesis of broad scope difluoromethylene-incorporated carbonyl (hetero)aromatic compounds,...
Thiol is known to act as a hydrogen atom transfer catalyst working in synergy with photocatalyst photoredox catalysis, but we report herein that an arene thiolate appropriate substituent can be photoactivated under visible light function both strongly reducing electron-donating redox and HAT enable catalytic C–F activation of trifluoromethyl substrates for selective hydrodefluorination coupling various alkenes the presence formate salts. These reactions demonstrate promising utility...
o-Phosphinophenolate and o-phosphinothiophenolate are potent photocatalysts with strong reducing ability to activate aryl chlorides bromides under visible light for borylation, arylation, phosphorylation. Experimental theoretical studies revealed that the o-diphenylphosphino substituent results in a narrow optical gap facilitates intersystem crossing access triplet states, which promote phenolate thiophenolate function as effective visible-light-photoredox catalysts. The presented herein...
Under visible light, a catalytic amount of ammonium iodide promotes the decarboxylative alkylation silyl enol ether and enamide with aliphatic <italic>N</italic>-(acyloxy)phthalimide through photoactivation transiently assembled chromophore.
Abstract Under mild irradiation conditions using violet light-emitting diodes, a catalytic amount of thiolate N-(4-mercaptophenyl)pivalamide promotes monoselective defluoroalkylation trifluoroacetates with variety aliphatic alkenes in the presence formate salt. The reactions allow facile and low-cost synthesis valuable α,α-difluoro substituted carboxylate esters under conditions, demonstrate dual-functional role arenethiolates photocatalysis as both strong photoreductant redox cycle...
The strong electron-donating ability in the photoactivated state and structural flexibility of organic anions have led to a growing interest utilizing photoexcited as reductive photocatalysts activate inert chemical bonds. Phenolate thiolate been extensively studied utilized catalysts wide range photocatalytic transformations. In contrast, employing nitrogen for radical generation received less attention despite vast possibilities designing adjusting catalyst properties. this work, we...