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3 results on '"Mario Barberis"'

1. ChemInform Abstract: Enantiocontrol in the Intermolecular Cyclopropanation Reaction Catalyzed by Dirhodium(II) Complexes with ortho-Metalated Aryl Phosphine Ligands

Author

Pascual Lahuerta, Julia Pérez-Prieto, Mario Barberis, and Mercedes Sanau

Subjects
chemistry.chemical_compound, Ethyl diazoacetate, Chemistry, Cyclopropanation, Aryl, Intermolecular force, Enantioselective synthesis, General Medicine, Medicinal chemistry, Phosphine, Catalysis
Abstract

(P) and (M) dirhodium(II) complexes with ortho-metalated aryl phosphines are assessed as chiral catalysts in the enantioselective cyclopropanation of styrenes by ethyl diazoacetate; enantioselectivities up to 91% and up to 87%, respectively, for cis- and trans-2-arylcyclopropanecarboxylates are observed.

Published
2010

3. Synthesis of a Novel Series of 4,4-Disubstituted 2,3,4,7-Tetrahydroazepines

Author

Sehila Pleite, Mario Barberis, Juan Ramon Rodriguez, Pablo Garcia-Losada, José Francisco Soriano, and Javier Mendiola

Subjects
Series (mathematics), Stereochemistry, Chemistry, Organic Chemistry, General Medicine, Metathesis, Biochemistry, Combinatorial chemistry, chemistry.chemical_compound, Ring-closing metathesis, Simple (abstract algebra), Drug Discovery, Wittig reaction, Azepine
Abstract

A general, simple and straightforward strategy for the synthesis of a novel series of 4,4-disubstituted 2,3,4,7-tetrahydroazepines is described. This route involves a one-pot Wittig olefination/N-allylation process on a five-membered hemi-aminal followed by a final ring closing metathesis reaction.

Published
2005

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