Phosphinophenolate
WebJan 17, 2024 · Abstract and Figures Under visible light irradiation, o -phosphinophenolate functions as an easily accessible photoredox catalyst to activate trifluoromethyl groups in trifluoroacetamides,... WebJan 17, 2024 · In summary, o -phosphinophenolates were developed as efficient photocatalysts for the selective C–F activation of a wide range of trifluoromethyl groups in trifluoroacetamides, trifluoroacetates,...
Phosphinophenolate
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WebAbstract. The 2-phosphinophenolate nickel catalyzed oligo- or polymerization of ethylene in the presence of olefins usually leads to improved conversion or copolymerization. The … WebMay 1, 2005 · Abstract A novel linear trinuclear mu-O-bridging 2-phosphinophenolate nickel (II) complex with fac-tris (P (intersection)O- chelates) in the terminal positions and the …
Web2‐Dicyclohexyl‐ and 2‐diphenylphosphinophenol, CCHH and PPHH, react with Ni(1,5‐COD) 2 to form catalysts for polymerization of ethylene in or copolymerization with α‐olefins. The more P‐basic CCHH/Ni catalyst allows concentration‐dependent incorporation of olefins to give copolymers with isolated side groups and higher molecular weights, whereas the … WebNov 23, 2024 · Under visible light irradiation, o-phosphinophenolate functions as an easily accessible photoredox catalyst to activate trifluoromethyl groups in trifluoroacetamides, trifluoroacetates, and trifluoromethyl (hetero)arenes to …
WebMar 25, 2015 · P,O-Phosphinophenolate zinc(II) species: synthesis, structure and use in the ring-opening polymerization (ROP) of lactide, ε-caprolactone and trimethylene carbonate … WebSynthesis of hydroxyl-functionalized ligands and the corresponding metal complexes a Phosphinophenolate nickel. b Perfluorophenyl-substituted phosphinophenolate nickel. c Phenoxy-imine...
Web2-Dimethylamino-4-nitrophenyl dihydrogen phosphate (33; equation 24) in the presence of an acidic promotor such as acetic acid, trifluoroacetic acid, or BF 3 –etherate in pyridine, …
WebOct 28, 2024 · We show that phosphinophenolate-coordinated nickel complexes can catalyze nonalternating copolymerization of ethylene with carbon monoxide to … earlon wade smithWebshow that phosphinophenolate-coordinated nickel complexes can catalyze nonalternating copolymerization of ethylene with carbon monoxide to incorporate a low density of individual in-chain keto groups in polyethylene chains withhigh molecular weight while retaining desirable material properties. earlon mcwhorterWebThe world’s most abundantly manufactured plastic, polyethylene, consists of inert hydrocarbon chains. The introduction of reactive polar groups in these chains could help overcome problematic environmental persistence and enhance compatibility with other materials. We show that phosphinophenolate-coordinated nickel complexes can catalyze … earlon shumakerWebDownloadable! Under visible light irradiation, o-phosphinophenolate functions as an easily accessible photoredox catalyst to activate trifluoromethyl groups in trifluoroacetamides, trifluoroacetates, and trifluoromethyl (hetero)arenes to deliver corresponding difluoromethyl radicals. It works in relay with a thiol hydrogen atom transfer (HAT) catalyst to enable … earlon bartleyWebMay 21, 2024 · Photocatalytic coupling reactions have developed rapidly in the field of organic synthesis. However, highly efficient, broad-spectrum, low-cost, and energy-saving catalytic systems are urgently needed. Herein a desirable alternative combining NaI–PPh3 photoredox catalyst and Cu(I) catalyst was theoretically designed and evaluated from … earl olivier marchaisWebNov 24, 2008 · 2-Dicyclohexyl- and 2-diphenylphosphinophenol, CCHH and PPHH, react with Ni(1,5-COD) 2 to form catalysts for polymerization of ethylene in or copolymerization with α-olefins. The more P-basic CCHH/Ni catalyst allows concentration-dependent incorporation of olefins to give copolymers with isolated side groups and higher molecular weights, … earl on the beat drum kit redditWebMar 25, 2015 · The P,O-type phosphinophenol proligands (1∙H, 2-PPh2-4-Me-6-Me-C6H2OH; 2∙H, 2-PPh2-4-Me-6-tBu-C6H2OH) readily react with one equiv. of ZnEt2 to afford in high yields the corresponding Zn (II)-ethyl... earlonthebeat