Mechanistic Studies on Transition Metal-Catalyzed C-H Activation Reactions Using Combined Mass Spectrometry and Theoretical Methods, Softcover reprint of the original 1st ed. 2017 Springer Theses Series
Auteur : Cheng Gui-Juan
This thesis presents detailed mechanistic studies on a series of important C-H activation reactions using combined computational methods and mass spectrometry experiments. It also provides guidance on the design and improvement of catalysts and ligands. The reactions investigated include: (i) a nitrile-containing template-assisted meta-selective C-H activation, (ii) Pd/mono-N-protected amino acid (MPAA) catalyzed meta-selective C-H activation, (iii) Pd/MPAA catalyzed asymmetric C-H activation reactions, and (iv) Cu-catalyzed sp3 C-H cross-dehydrogenative-coupling reaction.
The book reports on a novel dimeric Pd-M (M = Pd or Ag) model for reaction (i), which successfully explains the meta-selectivity observed experimentally. For reaction (ii), with a combined DFT/MS method, the author successfully reveals the roles of MPAA ligands and a new C-H activation mechanism, which accounts for the improved reactivity and high meta-selectivity and opens new avenues for ligand design. She subsequently applies ion-mobility mass spectrometry to capture and separate the [Pd(MPAA)(substrate)] complex at different stages for the first time, providing support for the internal-base model for reaction (iii). Employing DFT studies, she then establishes a chirality relay model that can be widely applied to MPAA-assisted asymmetric C-H activation reactions. Lastly, for reaction (iv) the author conducts detailed computational studies on several plausible pathways for Cu/O2 and Cu/TBHP systems and finds a reliable method for calculating the single electron transfer (SET) process on the basis of benchmark studies.
Introduction.- Mechanistic Studies on meta-C-H Activation Reaction.- Mechanistic Studies on MPAA-assisted meta-C-H Activation Reaction.- Mechanistic Studies on MPAA-assisted Asymmetric C-H Activation Reaction.- Mechanistic Studies on Cu-catalyzed sp3 C-H Cross-Dehydrogenative-Coupling Reaction.- Conclusions and Outlook.
Nominated as an outstanding PhD thesis by Peking University
Combines ion mobility mass spectrometry and computational chemistry to investigate reaction mechanisms in catalysis
Provides mechanistic insights for a broad range of important C-H activation reactions
Establishes a universal chirality-relay model for Pd/mono-N-protected amino acid (MPAA)-catalyzed asymmetric C-H activation reactions
Includes supplementary material: sn.pub/extras
Date de parution : 12-2018
Ouvrage de 126 p.
15.5x23.5 cm
Disponible chez l'éditeur (délai d'approvisionnement : 15 jours).
Prix indicatif 105,49 €
Ajouter au panierDate de parution : 06-2017
Ouvrage de 126 p.
15.5x23.5 cm
Disponible chez l'éditeur (délai d'approvisionnement : 15 jours).
Prix indicatif 105,49 €
Ajouter au panier