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Catalysts
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Catalytic Annulation Reactions
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Special Issue "Catalytic Annulation Reactions"

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalysis in Organic and Polymer Chemistry".

Deadline for manuscript submissions: 30 June 2023 | Viewed by 1819

Special Issue Editors

Dr. Lianghua Zou

E-Mail Website
Guest Editor
Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China
Interests: metal catalysis; heterocycle synthesis; annulation reactions; methodologies; medicinal chemistry
Dr. Xiaofeng Xia

E-Mail Website
Guest Editor
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
Interests: metal catalysis; heterocycle synthesis; annulation reactions; methodologies; photocatalysis

Special Issue Information

Dear Colleagues,

Annulation reactions represent a class of reactions that play an important role in the construction of structurally complex and valuable molecules. Dating back to more than one century ago, a lot of named annulation reactions have been found, such as Robinson annulation reaction, Nazarov annulation reaction, and Pschorr annulation reaction. Recently, significant efforts have focused on the development of annulation reactions. We believe that novel annulation reactions are of significant interest and must be explored further. Therefore, we would like to organize a Special Issue on catalytic annulation reactions.

We invite the scientific community to submit their contributions in the form of original research articles or review articles that describe novel catalytic and biocatalytic processes and green synthesis in the area of annulation reactions. In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Synthetic methodologies in annulation reactions;
  • Application of annulation reactions.

We look forward to receiving your contributions.

Dr. Lianghua Zou
Dr. Xiaofeng Xia
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. Catalysts is an international peer-reviewed open access monthly 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 2200 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

  • annulation reactions
  • quinolines
  • heterocycle synthesis
  • metal catalysis
  • methodologies

Published Papers (3 papers)

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Article
Transition Metal-Free Synthesis of 3-Acylquinolines through Formal [4+2] Annulation of Anthranils and Enaminones
by
Kai-Ling Zhang
,
Jia-Cheng Yang
,
Qin Guo
and
Liang-Hua Zou
Catalysts 2023, 13(4), 778; https://doi.org/10.3390/catal13040778 - 20 Apr 2023
Viewed by 630
Abstract
A transition metal-free protocol has been developed for the synthesis of 3-acyl quinolines through aza-Michael addition and intramolecular annulation of enaminones with anthranils. Both methanesulfonic acid (MSA) and NaI play an important role in the reaction. This ring-opening/reconstruction strategy features easy operation, high [...] Read more.
A transition metal-free protocol has been developed for the synthesis of 3-acyl quinolines through aza-Michael addition and intramolecular annulation of enaminones with anthranils. Both methanesulfonic acid (MSA) and NaI play an important role in the reaction. This ring-opening/reconstruction strategy features easy operation, high yields, broad substrate scope and excellent efficiency. Full article
(This article belongs to the Special Issue Catalytic Annulation Reactions)
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Article
One-Pot Synthesis of Benzoxazole/Benzothiazole-Substituted Esters by Michael Addition: A Selective Construction of C-N/C-S Bonds
by
Zhi-Ying Gong
,
Cheng-Li Yang
,
Dan Wang
,
Lang Huang
and
Zhi-Bing Dong
Catalysts 2023, 13(4), 658; https://doi.org/10.3390/catal13040658 - 27 Mar 2023
Cited by 1 | Viewed by 498
Abstract
An efficient and convenient synthesis of benzoxazole/benzothiazole-substituted esters in a one-pot strategy is reported. In this investigation, a selective construction of C-N and C-S bonds via simple addition is performed. Thus, using substituted 2-aminophenols/2-aminobenzenethiols, TMTD (tetramethylthiuram disulfide) and α,β-unsaturated esters [...] Read more.
An efficient and convenient synthesis of benzoxazole/benzothiazole-substituted esters in a one-pot strategy is reported. In this investigation, a selective construction of C-N and C-S bonds via simple addition is performed. Thus, using substituted 2-aminophenols/2-aminobenzenethiols, TMTD (tetramethylthiuram disulfide) and α,β-unsaturated esters as starting substrates, C-N and C-S bonds can be selectively constructed by means of the Michael addition reaction. This protocol features high selectivity, high atomic economy, mild conditions, good functional tolerance and good to excellent yields, showing the potential value for the preparation of some biologically and pharmaceutically active compounds. Full article
(This article belongs to the Special Issue Catalytic Annulation Reactions)
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Article
Four-Component Synthesis of 9H-Pyrimido[4,5-b]indoles Using Ammonium Iodide as the Nitrogen Source
by
Yufeng Chen
,
Ruitong Yang
,
Fuhong Xiao
,
Tong Li
,
Guojiang Mao
and
Guo-Jun Deng
Catalysts 2023, 13(3), 623; https://doi.org/10.3390/catal13030623 - 20 Mar 2023
Cited by 1 | Viewed by 420
Abstract
A four-component synthesis of 2-phenyl-9H-pyrimido[4,5-b]indoles was developed using indole-3-carboxaldehydes, aromatic aldehyde and ammonium iodide as the raw materials under transition-metal-free conditions. The pyrimidine ring was formed in one pot through [4 + 2] annulation reaction. Four C–N bonds were [...] Read more.
A four-component synthesis of 2-phenyl-9H-pyrimido[4,5-b]indoles was developed using indole-3-carboxaldehydes, aromatic aldehyde and ammonium iodide as the raw materials under transition-metal-free conditions. The pyrimidine ring was formed in one pot through [4 + 2] annulation reaction. Four C–N bonds were formed in one pot promoted by iodine and iodide additives. This work is highlighted by using two ammonium iodides as the sole nitrogen source. Full article
(This article belongs to the Special Issue Catalytic Annulation Reactions)
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