Fuwei Li

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Chungu Xia20
Lijun Shi7
Pan Li7
Rui Lang6
Qi Xing6
20Chungu Xia
7Lijun Shi
7Pan Li
6Rui Lang
6Qi Xing

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2003
2017
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Solvent-promoted catalyst-free N-formylation of amines using carbon dioxide under ambient conditions.
An unprecedented catalyst-free formylation of amines using CO2 and hydrosilanes was developed. The solvent plays a vital role in promoting the interaction of amines with hydrosilanes and subsequent CO2 insertion, thus facilitating the simultaneous activation of N-H and Si-H bonds. Based on relevant mechanistic studies, a plausible mechanism involving a… (More)
Palladium-catalyzed direct phosphonation of azoles with dialkyl phosphites.
The first Pd-catalyzed direct phosphonation of azoles with dialkyl phosphites has been achieved without addition of base or acid. This method involves the oxidative cleavage of C-H and P(O)-H bonds and represents an atom-efficiency alternative to the classical phosphonation of Ar-X. A Pd(II)/Pd(IV) mechanism has been studied and proposed.
Alkali-Induced Ring-Opening of 2-Amidodihydrofuran and Manganese-Catalyzed Aerobic Dehydrogenation Annulation: Access to Functionalized Oxazole.
A novel and efficient synthesis of functionalized oxazoles from 2-amidodihydrofurans has been achieved by alkali-induced intramolecular C-O bond cleavage and formation using air as a green oxidant. Moreover, these functionalized oxazoles could be readily transformed into the corresponding oxazole-substituted pyrazoles and 2H-azirines.
Modular "Click" Preparation of Bifunctional Polymeric Heterometallic Catalysts.
Heterobimetallic molecular complexes or strictly alternating metallated polymers are obtained by a click reaction between mononuclear metal complexes (secondary building units, SBUs) bearing NHCs functionalized with either p-azidophenyl or p-ethynylphenyl wingtips. With a copper-NHC complex as SBU the formation of molecular or polymeric compounds did not… (More)
Iron-catalyzed aerobic oxidative cleavage of the C-C σ-bond using air as the oxidant: chemoselective synthesis of carbon chain-shortened aldehydes, ketones and 1,2-dicarbonyl compounds.
A simple iron-catalyzed aerobic oxidative C-C σ-bond cleavage of ketones has been developed. Readily available and environmentally benign air is used as the oxidant. This reaction avoids the use of noble metal catalysts or specialized oxidants, chemoselectively yielding carbon chain-shortened aldehydes, ketones and 1,2-dicarbonyl compounds without… (More)
Direct oxidative coupling of enamides and 1,3-dicarbonyl compounds: a facile and versatile approach to dihydrofurans, furans, pyrroles, and dicarbonyl enamides.
An efficient manganese(III)-mediated oxidative coupling reaction between α-aryl enamides and 1,3-dicarbonyl compounds has been developed. A series of dihydrofurans and dicarbonyl enamides were synthesized in moderate to good yields. Moreover, these dihydrofurans could be readily transformed into the corresponding furans and pyrroles via the Paal-Knorr… (More)
Facile Synthesis of Trisubstituted Carbazoles by Acid-Catalyzed Ring-Opening Annulation of 2-Amidodihydrofurans with Indoles.
A mild and convenient synthesis of carbazoles by TfOTMS (trimethylsilyl trifluoromethanesulfonate)-catalyzed ring-opening annulation of 2-amidodihydrofurans is presented with a high degree of chemoselectivity and regioselectivity. This procedure was also scaled up to a gram-scale synthesis. The reaction could involve an iminonium intermediate through a… (More)
Nickel-Catalyzed Alkynylation of a C(sp(2))-H Bond Directed by an 8-Aminoquinoline Moiety.
An efficient nickel catalyst system for the direct ortho C-H alkynylation of the amides has been successfully developed with the directing assistance of 8-aminoquinoline. It was found that the flexible bis(2-dimethylaminoethyl) ether (BDMAE) ligand was critical to achieve the optimized reactivity. This protocol showed good tolerance toward not only a wide… (More)
Intramolecular Cooperative C-C Bond Cleavage Reaction of 1,3-Dicarbonyl Compounds with 2-Iodoanilines to Give o-(N-Acylamino)aryl Ketones and Multisubstituted Indoles.
A copper-catalyzed C-C bond cleavage reaction of 1,3-dicarbonyl compounds with 2-iodoanilines was developed. In this process, the ortho effect played an important role in the reactivity and a new reaction pathway that involved a (2-aminophenyl)-bis-(1,3-dicarbonyl) copper species was clearly observed by a time-course HRMS analysis of the reaction mixture.… (More)