Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386402403> ?p ?o ?g. }
- W4386402403 abstract "Nickel PyBox catalysts promote nucleophilic cyclopropanation reactions using CH2 Cl2 as a methylene source and Mn as a stoichiometric reductant. The substrate scope includes a broad range of alkenes bearing electron-withdrawing substituents, including esters, amides, ketones, nitriles, sulfones, phosphonate esters, trifluoromethyl groups, and electron-deficient arenes. Enantioselective cyclopropanations of α,β-unsaturated esters have been developed using chiral PyBox ligands. Mechanistic studies suggest the intermediacy of a (PyBox)Ni=CH2 species, which adds to the alkene by a stepwise [2+2]-cycloaddition/C-C reductive elimination mechanism. DFT models provide a rationale for the nucleophilic character of the nickel carbene and the sense of enantioinduction." @default.
- W4386402403 created "2023-09-04" @default.
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- W4386402403 date "2023-09-13" @default.
- W4386402403 modified "2023-10-17" @default.
- W4386402403 title "Nucleophilic Carbenes Derived from Dichloromethane" @default.
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- W4386402403 doi "https://doi.org/10.1002/anie.202308913" @default.
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