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Palladium Catalysts 2018
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Palladium Catalysts 2018

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

Deadline for manuscript submissions: closed (30 September 2018) | Viewed by 8459

Special Issue Editors

Dr. Diego A. Alonso

E-Mail Website
Guest Editor
Department of Organic Chemistry and Institute of Organic Synthesis (ISO), University of Alicante, P.O. Box 99, 03080 Alicante, Spain
Interests: metal catalysis; asymmetric catalysis; organocatalysis; materials science; medicinal chemistry; carbocatalysis; green chemistry
Special Issues, Collections and Topics in MDPI journals
Dr. Isidro M. Pastor

E-Mail Website
Guest Editor
Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
Interests: application of organometallic compounds in organic synthesis; synthesis of heterocyclic derivatives and their application as ligands in homogeneous and heterogeneous (MOFs) catalysts
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Palladium-catalyzed reactions are of vital importance in organic synthesis. Palladium catalysts have played a fundamental role in the development of a wide variety of transformations due to its versatility and high functional group tolerance. Indeed, nowadays, palladium-catalyzed reactions are routinely employed as powerful synthetic tools, both in academia and industry. Particularly interesting are the recent advances in new catalyst development, which have enabled to perform difficult transformations with unactivated substrates using low catalyst loadings under mild and green reaction conditions.

After the 2014 and 2016 editions, this Special Issue on Palladium Catalysts is already becoming a tradition in Molecules and we are delighted to launch the 2018 edition. This Special Issue will mainly focus on the latest advances and novel trends in the field of palladium catalysts, ranging from basic research and characterization studies to the development of highly active catalysts and their application in different redox processes, cross-coupling, as well as C–H activation reactions.

Dr. Diego A. Alonso
Dr. Isidro M. Pastor
Guest Editors

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 submissions that pass pre-check are 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 2700 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

  • palladium
  • cross-coupling
  • organic chemistry
  • green chemistry
  • heterogeneous chemistry
  • C–H activation
  • water
  • redox processes

Published Papers (2 papers)

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Research

12 pages, 6931 KiB  
Article
Pd-Catalyzed, Highly Selective C(sp2)-Br Bond Coupling Reactions of o-(or m-, or p-) Chloromethyl Bromobenzene with Arylboronic Acids
by Ming-ming Pei, Ping Liu, Yan Liu, Xin-ming Lv, Xiao-wei Ma and Bin Dai
Molecules 2018, 23(2), 433; https://doi.org/10.3390/molecules23020433 - 15 Feb 2018
Cited by 3 | Viewed by 4292
Abstract
Highly selective C(sp2)–C(sp2) cross-coupling of dihalogenated hydrocarbons comprising C(sp2)–Br and C(sp3)–Cl bonds with arylboronic acids is reported. This highly selective coupling reaction of the C(sp2)–Br bond is successfully achieved using Pd(OAc)2 and [...] Read more.
Highly selective C(sp2)–C(sp2) cross-coupling of dihalogenated hydrocarbons comprising C(sp2)–Br and C(sp3)–Cl bonds with arylboronic acids is reported. This highly selective coupling reaction of the C(sp2)–Br bond is successfully achieved using Pd(OAc)2 and PCy3·HBF4 as the palladium source and ligand, respectively. A series of chloromethyl-1,1′-biphenyl compounds are obtained in moderate-to-excellent yields. Moreover, this protocol can be extended to the one-pot dual arylation of 1-bromo-4-(chloromethyl)benzene with two arylboronic acids, leading to diverse unsymmetrical 4-benzyl-1,1′-biphenyl derivatives. Full article
(This article belongs to the Special Issue Palladium Catalysts 2018)
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9 pages, 5005 KiB  
Article
Monitoring Reaction Paths Using Vibrational Spectroscopies: The Case of the Dehydrogenation of Propane toward Propylene on Pd-Doped Cu(111) Surface
by Wei Hu and Xinrui Cao
Molecules 2018, 23(1), 126; https://doi.org/10.3390/molecules23010126 - 10 Jan 2018
Cited by 7 | Viewed by 3689
Abstract
Monitoring reaction paths is not only a fundamental scientific issue but also helps us to understand and optimize the catalytic process. Infrared (IR) and Raman spectroscopies are powerful tools for detecting particular molecules or intermediate products as a result of their ability to [...] Read more.
Monitoring reaction paths is not only a fundamental scientific issue but also helps us to understand and optimize the catalytic process. Infrared (IR) and Raman spectroscopies are powerful tools for detecting particular molecules or intermediate products as a result of their ability to provide the molecular “finger-print”. However, theoretical modeling for the vibrational spectra of molecular adsorbates on metallic surfaces is a long-standing challenge, because accurate descriptions of the electronic structure for both the metallic substrates and adsorbates are required. In the present work, we applied a quasi-analytical IR and Raman simulation method to monitor the dehydrogenation of propane towards propylene on a Pd-doped Cu(111) surface in real-time. Different Pd ensembles were used to construct the single-atom catalyst (SAC). We found that the number of sublayer Pd atoms could only affect the intensity of the peak rather than the peak position on the vibrational spectra. However, with the dehydrogenation reaction proceeding, both IR and Raman spectra were changed greatly, which indicates that every reaction step can be distinguished from the point of view of vibrational spectroscopies. Additionally, we found that the catalytic process, which starts from different initial states, shows different spectral profiles. The present results suggest that the vibrational spectroscopies obtained by the high-precision simulations pave the way for identifying different catalytic reaction paths. Full article
(This article belongs to the Special Issue Palladium Catalysts 2018)
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