Palladium-Catalyzed C3-Benzylation of Indoles
نویسندگان
چکیده
منابع مشابه
Palladium-catalyzed benzylation of heterocyclic aromatic compounds.
Broadly applicable palladium-catalyzed heteroarene benzylation reactions are described with a focus on the most challenging heterocyclic classes under traditional benzylation techniques such as sulfur-containing heterocycles and those bearing functional groups that would be incompatible with reactions requiring Lewis acids and/or strong bases.
متن کاملEfficient palladium-catalyzed N-arylation of indoles.
[equation--see text] The N-arylation of indoles, including a variety of substituted ones, has been carried out using bulky, electron-rich phosphines as the supporting ligand in combination with Pd(2)(dba)(3). Using this catalyst system, the efficient coupling of indole and a variety of substituted indoles with aryl iodides, bromides, chlorides, and triflates can be achieved.
متن کاملPalladium-Catalyzed Allylation/Benzylation of H-Phosphinate Esters with Alcohols.
The Pd-catalyzed direct alkylation of H-phosphinic acids and hypophosphorous acid with allylic/benzylic alcohols has been described previously. Here, the extension of this methodology to H-phosphinate esters is presented. The new reaction appears general, although its scope is narrower than with the acids, and its mechanism is likely different. Various alcohols are examined in their reaction wi...
متن کاملPalladium-catalyzed asymmetric benzylation of 3-aryl oxindoles.
Herein we report palladium-catalyzed asymmetric benzylic alkylation with 3-aryl oxindoles as prochiral nucleophiles. Proceeding analogously to asymmetric allylic alkylation, asymmetric benzylation occurs in high yield and enantioselectivity for a variety of unprotected 3-aryl oxindoles and benzylic methyl carbonates using chiral bisphosphine ligands. This methodology represents a novel asymmetr...
متن کاملPalladium-catalyzed direct arylation of indoles with arylsulfonyl hydrazides.
A novel method to synthesise 2-arylindoles is demonstrated via direct arylation of indoles with arylsulfonyl hydrazides. Under the optimized reaction conditions, the reaction well tolerates a wide variety of functional groups to afford structurally diverse 2-arylindoles in good to excellent yields at 70 °C.
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2011
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja2095393