Výsledky vyhledávání - "Bosco, Marcella"

Organocatalytic Asymmetric Friedel-Crafts Alkylation of Indoles with Simple α,β-Unsaturated Ketones

Autor: BARTOLI, GIUSEPPE, BOSCO, MARCELLA, CARLONE, ARMANDO, PESCIAIOLI, FABIO, SAMBRI, LETIZIA, MELCHIORRE, PAOLO

The first general and highly enantioselective organocatalytic Friedel-Crafts alkylation of indoles with simple unsaturated ketones has been accomplished. Central to these studies has been the identification of a new catalyst amine salt, in which both

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::22821d6432fe6633774f95ed3fb0e4da
http://hdl.handle.net/11585/47316

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Organocatalytic Asymmetric Hydrophosphination of α,β-Unsaturated Aldehydes

Autor: CARLONE, ARMANDO, BARTOLI, GIUSEPPE, BOSCO, MARCELLA, SAMBRI, LETIZIA, MELCHIORRE, PAOLO

The first organocatalytic asymmetric functionalization of aldehydes with a P-based compound has been successfully developed; the use of a simple chiral secondary amine has enabled the highly chemo- and enantioselective conjugate addition of diphenyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::4f89bf08a18b98b92d45b5b79aaf4944
http://hdl.handle.net/11585/47315

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Organocatalytic Asymmetric β -Hydroxylation of alfa ,beta -Unsaturated Ketones

Autor: CARLONE, ARMANDO, BARTOLI, GIUSEPPE, BOSCO, MARCELLA, PESCIAIOLI, FABIO, SAMBRI, LETIZIA, MELCHIORRE, PAOLO, P. Ricci

The highly enantioselective organocatalytic β-hydroxylation of α,β-unsaturated ketones has been accomplished using oximes as the oxygen-centered nucleophile. Optically active products are obtained with enantioselectivity up to 94%. Central to thes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::9184c5e3092d7490c4ed6a03070823da
http://hdl.handle.net/11585/56216

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A new Mild, General and Efficient Route to Aromatic Ethyl Carbonates in Solvent Free Conditions Promoted by Magnesium Perchlorate

Autor: BARTOLI, GIUSEPPE, BOSCO, MARCELLA, CARLONE, ARMANDO, LOCATELLI, MANUELA, MELCHIORRE, PAOLO, PALAZZI, PAOLO, SAMBRI, LETIZIA, E. Marcantoni

A new, general and mild method for the direct synthesis of aryl and alkyl ethyl carbonates promoted by a Lewis acid is reported. The reaction proceeds smoothly with diethyl dicarbonate in the presence of Mg(ClO4)2, a specific activator of 1,3-dicarbo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::266eaf01e8e13d388231c808d30e4b7a
http://hdl.handle.net/11585/34867

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RISOLUZIONE CINETICA AMINOLITICA (AKR) DI EPOSSIDI TERMINALI: UN NUOVO STRUMENTO PER LA SINTESI DI IMPORTANTI MOLECOLE ENANTIOPURE

Autor: MELCHIORRE, PAOLO, BARTOLI, GIUSEPPE, BOSCO, MARCELLA, CARLONE, ARMANDO, LOCATELLI, MANUELA, SAMBRI, LETIZIA

RISOLUZIONE CINETICA AMINOLITICA (AKR) DI EPOSSIDI TERMINALI: UN NUOVO STRUMENTO PER LA SINTESI DI IMPORTANTI MOLECOLE ENANTIOPURE P. Melchiorre, G. Bartoli, M. Bosco, A. Carlone, M. Locatelli, L. Sambri Dip. di Chimica Organica “A. Mangini” - Un

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::f0dc1a347d39535b86c6cc5f6eaaa6a0
http://hdl.handle.net/11585/23074

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APPLICATIONS OF PERCHLORATES IN ORGANIC SYNTHESIS. A NEW AND GENERAL ROUTE TO t-BUTYL ETHERS

Autor: BARTOLI, GIUSEPPE, BOSCO, MARCELLA, LOCATELLI, MANUELA, MELCHIORRE, PAOLO, SAMBRI, LETIZIA

APPLICATIONS OF PERCHLORATES IN ORGANIC SYNTHESIS. A NEW AND GENERAL ROUTE TO t-BUTYL ETHERS Giuseppe Bartoli, Marcella Bosco, Manuela Locatelli, Paolo Melchiorre and Letizia Sambri Dipartimento di Chimica Organica “A. Mangini”, v.le Risorgimento

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::2681b8de19f83cf2d77815e145e3bd63
http://hdl.handle.net/11585/22964

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Highly Efficient Solvent-free Condensation of Carboxylic Acids with Alcohols Catalysed by Zn(ClO4)2.6H2O

Autor: BARTOLI, GIUSEPPE, BOSCO, MARCELLA, LOCATELLI, MANUELA, MASSACCESI, MASSIMO, MELCHIORRE, PAOLO, SAMBRI, LETIZIA, J. Boeglin

Zinc perchlorate hexahydrate,Zn(ClO4 )2 · 6H2 O,efficiently catalyses the esterification be- tween nearly equimolar amounts of carboxylic acids and alcohols.The reaction works under solvent-free conditions at relatively low temperatures.Excellent re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::0bc16e4e37f561d278f8c65bba48ba52
http://hdl.handle.net/11585/8434

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Highly Stereoselective Reduction of β-Keto Amides. The First General and Efficient Approach to N-Mono- and Non-Substituted anti-α-Alkyl β-Hydroxy Amides

Autor: BARTOLI, GIUSEPPE, BOSCO, MARCELLA, MELCHIORRE, PAOLO, RINALDI, SAMUELE, SAMBRI, LETIZIA, E. Marcantoni

The first general protocol for the anti-selective reduction of α-alkyl-b-keto amides is described. This simple and efficient methodology based on an open-chain Felkin-Anh model pathway, allows the isolation of N-mono- and non-substituted anti-a-subs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::587a4c853f9efdfcd416cfed9527c937
http://hdl.handle.net/11585/6022

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Zn(ClO4)2·6H2O as Lewis Acid: New Applications in Organic Synthes

Autor: BARTOLI, GIUSEPPE, BOSCO, MARCELLA, LOCATELLI, MANUELA, MASSACCESI, MASSIMO, MELCHIORRE, PAOLO, SAMBRI, LETIZIA, E. Marcantoni

Zn(ClO4)2·6H2O as Lewis Acid: New Applications in Organic Synthesis Giuseppe Bartoli,a Marcella Bosco,a Manuela Locatelli,a Massimo Massaccesi,a Enrico Marcantoni,b Paolo Melchiorre,a Letizia Sambria a) Dipartimento di Chimica Organica “A. Mangini

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4094::0bc29b5fc4f355d9aaeea2535af38681
http://hdl.handle.net/11585/22969

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