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Authors = Arianna Sinibaldi

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27 pages, 18290 KiB  
Review
Boron-Based Lewis Acid Catalysis: Challenges and Perspectives
by Valeria Nori, Fabio Pesciaioli, Arianna Sinibaldi, Giuliana Giorgianni and Armando Carlone
Catalysts 2022, 12(1), 5; https://doi.org/10.3390/catal12010005 - 22 Dec 2021
Cited by 55 | Viewed by 16590
Abstract
In the last two decades, boron-based catalysis has been gaining increasing traction in the field of organic synthesis. The use of halogenated triarylboranes as main group Lewis acid catalysts is an attractive strategy. It has been applied in a growing number of transformations [...] Read more.
In the last two decades, boron-based catalysis has been gaining increasing traction in the field of organic synthesis. The use of halogenated triarylboranes as main group Lewis acid catalysts is an attractive strategy. It has been applied in a growing number of transformations over the years, where they may perform comparably or even better than the gold standard catalysts. This review discusses methods of borane synthesis and cutting-edge boron-based Lewis acid catalysis, focusing especially on tris(pentafluorophenyl)-borane [B(C6F5)3], and other halogenated triarylboranes, highlighting how boron Lewis acids employed as catalysts can unlock a plethora of unprecedented chemical transformations or improve the efficiency of existing reactions. Full article
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35 pages, 9699 KiB  
Review
Organocatalysis and Beyond: Activating Reactions with Two Catalytic Species
by Arianna Sinibaldi, Valeria Nori, Andrea Baschieri, Francesco Fini, Antonio Arcadi and Armando Carlone
Catalysts 2019, 9(11), 928; https://doi.org/10.3390/catal9110928 - 6 Nov 2019
Cited by 35 | Viewed by 9227
Abstract
Since the beginning of the millennium, organocatalysis has been gaining a predominant role in asymmetric synthesis and it is, nowadays, a foundation of catalysis. Synergistic catalysis, combining two or more different catalytic cycles acting in concert, exploits the vast knowledge acquired in organocatalysis [...] Read more.
Since the beginning of the millennium, organocatalysis has been gaining a predominant role in asymmetric synthesis and it is, nowadays, a foundation of catalysis. Synergistic catalysis, combining two or more different catalytic cycles acting in concert, exploits the vast knowledge acquired in organocatalysis and other fields to perform reactions that would be otherwise impossible. Merging organocatalysis with photo-, metallo- and organocatalysis itself, researchers have ingeniously devised a range of activations. This feature review, focusing on selected synergistic catalytic approaches, aims to provide a flavor of the creativity and innovation in the area, showing ground-breaking examples of organocatalysts, such as proline derivatives, hydrogen bond-mediated, Cinchona alkaloids or phosphoric acids catalysts, which work cooperatively with different catalytic partners. Full article
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