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Ashis Kumar Das

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Related publications (5)

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Rh-catalyzed C-H Bond Heteroarylation with Hypervalent Iodine Reagents and Pd-Catalyzed Tethered Functionalizations of Carbon-Carbon Multiple Bonds

Ashis Kumar Das

Transition metal-catalyzed C-H activation is a powerful tool for the synthesis of organic building blocks, materials, and natural products. Over the last decade, directing-group-assisted metal-catalyzed C-H functionalization has attracted increasing intere ...

EPFL2022

Pd(II)-Catalyzed Aminoacetoxylation of Alkenes Via Tether Formation

Thomas Rossolini, Jérôme Waser, Stefano Nicolai, Ashis Kumar Das

A Pd-catalyzed method based on the use of a molecular tether is described for olefin difunctionalization. Enabled by an easily introduced trifluoroacetaldehyde-derived tether, a simultaneous introduction of oxygen and nitrogen heteroatoms across unsaturate ...

2022

Palladium-Catalyzed trans-Hydroalkoxylation: Counterintuitive Use of an Aryl Iodide Additive to Promote C-H Bond Formation

Jérôme Waser, Mikus Purins, Ashis Kumar Das, Luca Buzzetti

We report an enantioselective palladium-catalyzed trans-hydroalkoxylation of propargylic amines with a trifluoroacetaldehydederived tether to build chiral oxazolidines. Diastereoselective hydrogenation using a heterogeneous palladium catalyst then gave acc ...

2022

Pd-catalyzed functionalization of alkenes and alkynes using removable tethers

Jérôme Waser, Ashis Kumar Das

2022

Rhodium-catalyzed C–H functionalization of heteroarenes using indoleBX hypervalent iodine reagents

Jérôme Waser, Paola Caramenti, Ashis Kumar Das, Erwann Stefan Grenet

2018