Matches in SemOpenAlex for { <https://semopenalex.org/work/W2313079737> ?p ?o ?g. }
- W2313079737 endingPage "17851" @default.
- W2313079737 startingPage "17844" @default.
- W2313079737 abstract "A Ni/N-heterocyclic carbene catalyst couples diynes to the C(α)-C(β) double bond of tropone, a type of reaction that is unprecedented for metal-catalyzed cycloadditions with aromatic tropone. Many different diynes were efficiently coupled to afford [5-6-7] fused tricyclic products, while [5-7-6] fused tricyclic compounds were obtained as minor byproducts in a few cases. The reaction has broad substrate scope and tolerates a wide range of functional groups, and excellent regioselectivity is found with unsymmetrical diynes. Theoretical calculations show that the apparent enone cycloaddition occurs through a distinctive 8π insertion of tropone. The initial intramolecular oxidative cyclization of diyne produces the nickelacyclopentadiene intermediate. This intermediate undergoes an 8π insertion of tropone, and subsequent reductive elimination generates the [5-6-7] fused tricyclic product. This initial product undergoes two competing isomerizations, leading to the observed [5-6-7] and [5-7-6] fused tricyclic products." @default.
- W2313079737 created "2016-06-24" @default.
- W2313079737 creator A5009790777 @default.
- W2313079737 creator A5033743247 @default.
- W2313079737 creator A5035380338 @default.
- W2313079737 creator A5042178740 @default.
- W2313079737 creator A5091831957 @default.
- W2313079737 date "2014-12-05" @default.
- W2313079737 modified "2023-10-14" @default.
- W2313079737 title "Ni(NHC)]-Catalyzed Cycloaddition of Diynes and Tropone: Apparent Enone Cycloaddition Involving an 8π Insertion" @default.
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