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2 results on '"Carlo Punta"'

1. Free-Radical Addition to Ketimines Generated In Situ. New One-Pot Synthesis of Quaternary α-Aminoamides Promoted by a H2O2/TiCl4−Zn/HCONH2 System.

Author

Nadia Pastori, Cosimina Greco, Angelo Clerici, Carlo Punta, and Ombretta Porta

Subjects
*ASYMMETRIC synthesis, *AMINO acids, *KETONES, *HYDROGEN peroxide, *HYDROGEN content of titanium, *FREE radicals, *ADDITION reactions, *AMIDES
Abstract

A free radical multicomponent reaction mediated by an acidic TiCl4−Zn/H2O2system allows the assembly of an amine, a ketone, and formamide in one pot, affording instant access to quaternary α-amino acid derivatives. [ABSTRACT FROM AUTHOR]

Published
2010
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2. A New One-Pot, Four-Component Synthesis of 1,2-Amino Alcohols: TiCl3/t-BuOOH-Mediated Radical Hydroxymethylation of Imines.

Author

Angelo Clerici, Alessandra Ghilardi, Nadia Pastori, Carlo Punta, and Ombretta Porta

Subjects
*AMINO alcohols, *ORGANIC synthesis, *METHYLATION, *CHLORIDES, *TITANIUM compounds, *IMINES, *FREE radicals
Abstract

An amine, an aldehyde, and methanol can be readily assembled in one pot under very mild conditions through a free-radical multicomponent reaction by using an aqueous acidic TiCl 3/ t-BuOOH system to afford 1,2-amino alcohols in fair to excellent yields. [ABSTRACT FROM AUTHOR]

Published
2008
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