E-Mail Alert

Add your e-mail address to receive forthcoming issues of this journal:

Journal Browser

Journal Browser

Special Issue "New Insights in Photoredox Catalysis"

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Organic Chemistry".

Deadline for manuscript submissions: 30 July 2019

Special Issue Editor

Guest Editor
Prof. Yasuharu Yoshimi

University of Fukui, Graduate School of Engineering, Department of Applied Chemistry and Biotechnology, Fukui, Japan
Website | E-Mail
Interests: Photoredox Reaction; Photoinduced Electron Transfer; Organic Photoredox Catalyst; Photoinduced Decaroxylation; Radical Reaction; Peptide Chemistry

Special Issue Information

Dear Colleagues,

Photoredox catalysis is currently one of the most significant research topics in chemistry, because photoinduced electron transfer (PET) with organic substrates can provide unique processes for organic synthesis, polymer synthesis, modification of materials, fluorescence sensors, etc. In addition, the photochemical method represents a less toxic and milder process than conventional methods, because light is a clean and traceless reagent. Therefore, this Special Issue aims to illustrate the recent developments in the uses of photoinduced redox processes with organic molecules. The contributions will focus on a broad range of organic reactions by effective homogeneous and heterogeneous photoredox catalysts, as well as on their involvement in the polymer synthesis or modification of materials or fluorescence sensors.

Communications, full papers and reviews on the abovementioned topics are particularly welcome.

Prof. Yasuharu Yoshimi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Photoredox Catalysis
  • Photoredox Reaction
  • Photoredox Catalyst
  • Photoinduced Electron Transfer
  • Photoinduced Reaction
  • Photoinduced Oxidation
  • Photoinduced Reduction
  • Photochemical Reaction
  • Photoinduced Polymerization
  • Fluorescence Sensor

Published Papers (1 paper)

View options order results:
result details:
Displaying articles 1-1
Export citation of selected articles as:

Review

Open AccessReview TiO2 Photocatalysis for Transfer Hydrogenation
Molecules 2019, 24(2), 330; https://doi.org/10.3390/molecules24020330
Received: 15 December 2018 / Revised: 11 January 2019 / Accepted: 15 January 2019 / Published: 17 January 2019
PDF Full-text (9721 KB) | HTML Full-text | XML Full-text
Abstract
Catalytic transfer hydrogenation reactions, based on hydrogen sources other than gaseous H2, are important processes that are preferential in both laboratories and factories. However, harsh conditions, such as high temperature, are usually required for most transition-metal catalytic and organocatalytic systems. Moreover, [...] Read more.
Catalytic transfer hydrogenation reactions, based on hydrogen sources other than gaseous H2, are important processes that are preferential in both laboratories and factories. However, harsh conditions, such as high temperature, are usually required for most transition-metal catalytic and organocatalytic systems. Moreover, non-volatile hydrogen donors such as dihydropyridinedicarboxylate and formic acid are often required in these processes which increase the difficulty in separating products and lowered the whole atom economy. Recently, TiO2 photocatalysis provides mild and facile access for transfer hydrogenation of C=C, C=O, N=O and C-X bonds by using volatile alcohols and amines as hydrogen sources. Upon light excitation, TiO2 photo-induced holes have the ability to oxidatively take two hydrogen atoms off alcohols and amines under room temperature. Simultaneously, photo-induced conduction band electrons would combine with these two hydrogen atoms and smoothly hydrogenate multiple bonds and/or C-X bonds. It is heartening that practices and principles in the transfer hydrogenations of substrates containing C=C, C=O, N=O and C-X bond based on TiO2 photocatalysis have overcome a lot of the traditional thermocatalysis’ limitations and flaws which usually originate from high temperature operations. In this review, we will introduce the recent paragon examples of TiO2 photocatalytic transfer hydrogenations used in (1) C=C and C≡C (2) C=O and C=N (3) N=O substrates and in-depth discuss basic principle, status, challenges and future directions of transfer hydrogenation mediated by TiO2 photocatalysis. Full article
(This article belongs to the Special Issue New Insights in Photoredox Catalysis)
Figures

Scheme 1

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top