Recent Advances in Ni-Catalyzed Allylic Substitution Reactions
نویسندگان
چکیده
منابع مشابه
Transition metal-catalyzed allylic substitution reactions with unactivated allylic substrates.
The transition metal-catalyzed allylic substitution of unactivated allylic substrates (allylic alcohols, allylic ethers and allylic amines) is rapidly becoming an important area of research. There are several advantages to using these substrates in allylic substitution reactions: the use of unactivated alcohols minimizes the production of waste by-products and reaction steps; and allylic ethers...
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Enantiomerically pure alkoxypyrrolinones have been shown to be facile building blocks for a variety of stereoselective syntheses involving Diels-Alder cycloadditions , 1,3dipolar reactions, conjugate additions, and acyliminium ion intermediates. In particular the application in the asymmetric synthesis of alkaloids based on N-acyliminium ion chemistry is of current interest. For example, (R)-1-...
متن کاملNickel-catalyzed allylic substitution of simple alkenes.
Nickel-catalyzed intermolecular allylic substitution of simple alkenes (ethylene and alpha olefins) is described. This method is the first catalytic intermolecular process for direct allylation of nonconjugated, nonstrained simple alkenes. Catalyst loadings as low as 2.5 mol % Ni afford the desired product in high yield in both gram-scale and smaller scale coupling reactions.
متن کاملRecent advances in copper-catalyzed asymmetric coupling reactions
Copper-catalyzed (or -mediated) asymmetric coupling reactions have received significant attention over the past few years. Especially the coupling reactions of aryl or alkyl halides with nucleophiles became a very powerful tool for the formation of C-C, C-N, C-O and other carbon-heteroatom bonds as well as for the construction of heteroatom-containing ring systems. This review summarizes the re...
متن کاملPalladium-catalyzed asymmetric allylic substitution reactions using new chiral phosphinooxathiane ligands.
The development of the new chiral ligands for use in asymmetric catalytic reactions has drawn considerable interest in the last 10 years. In this area, palladiumcatalyzed allylic substitution reactions have been shown to be effective tools for the construction of carbon-carbon and carbon-heteroatom bond1 formation, and several efficient enantioselective catalysts such as C2and C1symmetric biden...
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ژورنال
عنوان ژورنال: Chinese Journal of Organic Chemistry
سال: 2019
ISSN: 0253-2786
DOI: 10.6023/cjoc201809037