Matches in SemOpenAlex for { <https://semopenalex.org/work/W2980612216> ?p ?o ?g. }
- W2980612216 endingPage "4260" @default.
- W2980612216 startingPage "4250" @default.
- W2980612216 abstract "The synthesis of the phosphine-arenesulfonate Pd(II) fluoride complex (PO-OMe)PdF(lut) (2, PO-OMe = P(2-OMe-Ph)2(2-SO3-5-Me-Ph), lut = 2,6-lutidine) and its reactions with electron-deficient olefins are described. The reaction of (PO-OMe)PdBr(lut) (1) with AgF affords 2 as an 82:18 mixture of cis-P,F and trans-P,F isomers. 2 isomerizes to a 1:2 cis-P,F:trans-P,F equilibrium mixture in CD2Cl2 solution at room temperature in ca. 3 days. 2 reacts with vinyl fluoride (VF) to afford (PO-OMe)Pd(CH2CHF2)(lut) (3), which exists as the cis-P,C isomer. 2 reacts with vinyl bromide (VBr) to yield 1 and VF by initial fluoropalladation to form (PO-OMe)Pd(CH2CHBrF)(lut) (4, not observed) followed by β-Br elimination. 2 reacts with vinyl acetate to yield (PO-OMe)Pd{CH2CHF(OAc)}(lut) (5), which reacts further to form the C-bound enolate complex (PO-OMe)Pd{CH2C(═O)H}(lut) (6) and acetyl fluoride. 2 reacts with vinyl benzoate in an analogous fashion. DFT analysis of the reaction of the model complexes cis-P,F- and trans-P,F-(PH2O)PdF(py) (C1 and C2, PH2O– = o-PH2C6H4SO3–) with VF supports a mechanism involving substitution of lutidine by VF followed by migratory insertion into the Pd–F bond. An alternative mechanism comprising substitution of fluoride by VF to generate (PO-OMe)Pd(VF)(lut)+ and F–, followed by exo attack of F– on the bound VF was found to be energetically prohibitive. DFT analysis of the reaction of the model complexes cis-P,F- and trans-P,F-(PH2O)PdF(VBr) (C10 and C13) supports an insertion/β-Br elimination mechanism." @default.
- W2980612216 created "2019-10-25" @default.
- W2980612216 creator A5001203502 @default.
- W2980612216 creator A5039876250 @default.
- W2980612216 creator A5058003131 @default.
- W2980612216 creator A5066453923 @default.
- W2980612216 date "2019-10-15" @default.
- W2980612216 modified "2023-10-17" @default.
- W2980612216 title "Olefin Insertion Reactivity of a (Phosphine-arenesulfonate)Palladium(II) Fluoride Complex" @default.
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