1
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Fu W, Zhu L, Tan S, Zhao Z, Yu X, Wang L. Copper/Nitroxyl-Catalyzed Synthesis of Pyrroles by Oxidative Coupling of Diols and Primary Amines at Room Temperature. J Org Chem 2022; 87:13389-13395. [PMID: 36130051 DOI: 10.1021/acs.joc.2c01646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Cu/ABNO-catalyzed aerobic oxidative coupling of diols and primary amines to access N-substituted pyrroles is highlighted (ABNO = 9-azabicyclo[3.3.1]nonane N-oxyl). The reaction proceeds at room temperature with an O2 balloon as the oxidant using commercially available materials as the substrates and catalysts. The catalyst system is characterized by a broad range of substrates and a good tolerance to sensitive functional groups. The gram-scale experiment proves this system's practicability.
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Affiliation(s)
- Weiru Fu
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, Liaoning 116029, China
| | - Lina Zhu
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, Liaoning 116029, China
| | - Shangzhi Tan
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, Liaoning 116029, China
| | - Zhengjia Zhao
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, Liaoning 116029, China
| | - Xiangzhu Yu
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, Liaoning 116029, China
| | - Lianyue Wang
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, Liaoning 116029, China
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2
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Fu A, Sun M, Jiang S, Xu H, Xu G. Green Catalytic Synthesis of the Pyrroles by N and P Functionalized Activated Carbon supported Ir. ChemistrySelect 2022. [DOI: 10.1002/slct.202201268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aixiao Fu
- CAS Key Laboratory of Bio-based Materials Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Shandong 266101 China
- Technical University of Denmark Søltoft Plads 229 2800 Kgs. Lyngby Denmark
| | - Mengqing Sun
- CAS Key Laboratory of Bio-based Materials Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Shandong 266101 China
| | - Shifeng Jiang
- CAS Key Laboratory of Bio-based Materials Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Shandong 266101 China
| | - Huanfei Xu
- College of Chemical Engineering Qingdao University of Science and technology Qingdao Shandong 266042 China
| | - Guoqiang Xu
- CAS Key Laboratory of Bio-based Materials Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Shandong 266101 China
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3
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Guin AK, Mondal R, Chakraborty G, Pal S, Paul ND. Ruthenium-Catalyzed Dehydrogenative Functionalization of Alcohols to Pyrroles: A Comparison between Metal-Ligand Cooperative and Non-cooperative Approaches. J Org Chem 2022; 87:7106-7123. [PMID: 35583483 DOI: 10.1021/acs.joc.2c00311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Herein, we report the synthesis and characterization of two ruthenium-based pincer-type catalysts, [1]X (X = Cl, PF6) and 2, containing two different tridentate pincer ligands, 2-pyrazolyl-(1,10-phenanthroline) (L1) and 2-arylazo-(1,10-phenanthroline) (L2a/2b, L2a = 2-(phenyldiazenyl)-1,10-phenanthroline; L2b = 2-((4-chlorophenyl)diazenyl)-1,10-phenanthroline), and their application in the synthesis of substituted pyrroles via dehydrogenative alcohol functionalization reactions. In catalyst [1]X (X = Cl, PF6), the tridentate scaffold 2-pyrazolyl-(1,10-phenanthroline) (L1) is apparently redox innocent, and all the redox events occur at the metal center, and the coordinated ligands remain as spectators. In contrast, in catalysts 2a and 2b, the coordinated azo-aromatic scaffolds are highly redox-active and known to participate actively during the dehydrogenation of alcohols. A comparison between the catalytic activities of these two catalysts was made, starting from the simple dehydrogenation of alcohols to further dehydrogenative functionalization of alcohols to various substituted pyrroles to understand the advantages/disadvantages of the metal-ligand cooperative approach. Various substituted pyrroles were prepared via dehydrogenative coupling of secondary alcohols and amino alcohols, and the N-substituted pyrroles were synthesized via dehydrogenative coupling of aromatic amines with cis-2-butene-1,4-diol and 2-butyne-1,4-diol, respectively. Several control reactions and spectroscopic experiments were performed to characterize the catalysts and establish the reaction mechanism.
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Affiliation(s)
- Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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4
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Abstract
Nitrogen-containing heterocycles are important scaffolds for a large number of compounds with biological, pharmaceutical, industrial and optoelectronic applications. A wide range of different methodologies for the preparation of N-heterocycles are based on metal-catalyzed cyclization of suitable substrates. Due to the growing interest in Green Chemistry criteria over the past two decades, the use of supported metal catalysts in the preparation of N-heterocycles has become a central topic in Organic Chemistry. Here we will give a critical overview of all the solid supported metal catalysts applied in the synthesis of N-heterocycles, following a systematic approach as a function of the type of support: (i) metal catalysts supported on inorganic matrices; (ii) metal catalysts supported on organic matrices; (iii) metal catalysts supported on hybrid inorganic-organic matrices. In particular, we will try to emphasize the effective heterogeneity and recyclability of the described metal catalysts, specifying which studies were carried out in order to evaluate these aspects.
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5
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Poly SS, Hashiguchi Y, Nakamura I, Fujitani T, Siddiki SMAH. Direct synthesis of triazines from alcohols and amidines using supported Pt nanoparticle catalysts via the acceptorless dehydrogenative methodology. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00426g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a cost-effective, green, and acceptorless dehydrogenative one-pot synthesis of triazines from primary alcohols and amidines using an alumina-supported Pt nanoparticle catalyst (Pt/Al2O3).
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Affiliation(s)
- Sharmin Sultana Poly
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, Japan
| | - Yuta Hashiguchi
- Research Association of High-Throughput Design and Development for Advanced Functional Materials, Tsukuba, Ibaraki, 305-8565, Japan
| | - Isao Nakamura
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, Japan
| | - Tadahiro Fujitani
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, Japan
| | - S. M. A. Hakim Siddiki
- Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
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6
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Sun K, Shan H, Lu GP, Cai C, Beller M. Synthesis of N-Heterocycles via Oxidant-Free Dehydrocyclization of Alcohols Using Heterogeneous Catalysts. Angew Chem Int Ed Engl 2021; 60:25188-25202. [PMID: 34138507 PMCID: PMC9292538 DOI: 10.1002/anie.202104979] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Indexed: 01/15/2023]
Abstract
N-Heterocycles, such as pyrroles, pyrimidines, quinazolines, and quinoxalines, are important building blocks for organic chemistry and the fine-chemical industry. For their synthesis, catalytic borrowing hydrogen and acceptorless dehydrogenative coupling reactions of alcohols as sustainable reagents have received significant attention in recent years. To overcome the problems of product separation and catalyst reusability, several metal-based heterogeneous catalysts have been reported to achieve these transformations with good yields and selectivity. In this Minireview, we summarize recent developments using both noble and non-noble metal-based heterogeneous catalysts to synthesize N-heterocycles from alcohols and N-nucleophiles via acceptorless dehydrogenation or borrowing hydrogen methodologies. Furthermore, this Minireview introduces strategies for the preparation and functionalization of the corresponding heterogeneous catalysts, discusses the reaction mechanisms and the roles of metal electronic states, and the influence of support Lewis acid-base properties on these reactions.
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Affiliation(s)
- Kangkang Sun
- School of Chemical Engineering, Nanjing University of Science & Technology, Xiaolingwei 200, Nanjing, 210094, P. R. China.,Applied Homogeneous Catalysis, Leibniz-Institut für Katalyse e.V, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Hongbin Shan
- School of Chemical Engineering, Nanjing University of Science & Technology, Xiaolingwei 200, Nanjing, 210094, P. R. China
| | - Guo-Ping Lu
- School of Chemical Engineering, Nanjing University of Science & Technology, Xiaolingwei 200, Nanjing, 210094, P. R. China
| | - Chun Cai
- School of Chemical Engineering, Nanjing University of Science & Technology, Xiaolingwei 200, Nanjing, 210094, P. R. China
| | - Matthias Beller
- Applied Homogeneous Catalysis, Leibniz-Institut für Katalyse e.V, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
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7
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Sun K, Shan H, Lu G, Cai C, Beller M. Synthesis of
N
‐Heterocycles via Oxidant‐Free Dehydrocyclization of Alcohols Using Heterogeneous Catalysts. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Kangkang Sun
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
- Applied Homogeneous Catalysis Leibniz-Institut für Katalyse e.V Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Hongbin Shan
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
| | - Guo‐Ping Lu
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
| | - Chun Cai
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
| | - Matthias Beller
- Applied Homogeneous Catalysis Leibniz-Institut für Katalyse e.V Albert-Einstein-Straße 29a 18059 Rostock Germany
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8
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Zhou XY, Chen X. ZnCl2 Catalyzed Ring-Opening Reaction of Symmetrical Epoxides with Aromatic Amines for the Synthesis of 1,2-Amino Alcohols. ORG PREP PROCED INT 2021. [DOI: 10.1080/00304948.2021.1994289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xiao-Yu Zhou
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
| | - Xia Chen
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, China
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9
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Philkhana SC, Badmus FO, Dos Reis IC, Kartika R. Recent Advancements in Pyrrole Synthesis. SYNTHESIS-STUTTGART 2021; 53:1531-1555. [PMID: 34366491 PMCID: PMC8340853 DOI: 10.1055/s-0040-1706713] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This review article features selected examples on the synthesis of functionalized pyrroles that were reported between 2014 and 2019. Pyrrole is an important nitrogen-containing aromatic heterocycle that can be found in numerous compounds of biological and material significance. Given its vast importance, pyrrole continues to be an attractive target for the development of new synthetic reactions. The contents of this article are organized by the starting materials, which can be broadly classified into four different types: substrates bearing π-systems, substrates bearing carbonyl and other polar groups, and substrates bearing heterocyclic motifs. Brief discussions on plausible reaction mechanisms for most transformations are also presented.
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Affiliation(s)
- Satish Chandra Philkhana
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Fatimat O Badmus
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Isaac C Dos Reis
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Rendy Kartika
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
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10
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Mamedov VA, Khafizova EA, Algaeva NE, Latypov SK, Sinyashin OG. Acid-Catalyzed Multicomponent Rearrangements via 2-((Quinoxalin-3(4 H)-on-2-yl)(aryl)methylene)malononitriles, Generated In Situ, for Divergent Synthesis of Pyrroles with Different Substitution Patterns. J Org Chem 2020; 85:9887-9904. [PMID: 32588636 DOI: 10.1021/acs.joc.0c01180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New three-component domino reactions, providing divergent approaches to multifunctionalized pyrroles with different substitution patterns, have been established (47 examples). In this work, a new rearrangement of quinoxalinones with the participation of the in situ-generated 2-en-1-imine moiety of the substituent at C3 makes it possible to construct two new heterocyclic systems, namely, a benzimidazolone and a pyrrole, simultaneously under one-pot reaction conditions. The reaction is easy to perform simply by mixing three common reactants of acetic acid with heating. Secondary amines or primary alcohols as the third component of the reaction, along with quinoxalin-3(4H)-ones and malononitrile, not only initiate the rearrangement but also are responsible for the nature of substituents at position 5 of the pyrrole ring in the newly formed new biheterocyclic system. The reaction proceeds smoothly and can be finished within 7 h, which makes workup convenient to give up to 97% chemical yields.
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Affiliation(s)
- Vakhid A Mamedov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, RFC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Elena A Khafizova
- A.E. Arbuzov Institute of Organic and Physical Chemistry, RFC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Nataliya E Algaeva
- A.E. Arbuzov Institute of Organic and Physical Chemistry, RFC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Shamil K Latypov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, RFC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Oleg G Sinyashin
- A.E. Arbuzov Institute of Organic and Physical Chemistry, RFC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
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11
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Abstract
:
Pyrrole derivatives are nitrogen-containing heterocyclic compounds and widely
distributed in a large number of natural and non-natural compounds. These compounds
possess a broad spectrum of biological activities such as anti-infammatory, antiviral, antitumor,
antifungal, and antibacterial activities. Besides their biological activity, pyrrole derivatives
have also been applied in various areas such as dyes, conducting polymers, organic
semiconductors.
:
Due to such a wide range of applicability, access to this class of compounds has attracted
intensive research interest. Various established synthetic methods such as Paal-Knorr,
Huisgen, and Hantzsch have been modified and improved. In addition, numerous novel
methods for pyrrole synthesis have been discovered. This review will focus on considerable
studies on the synthesis of pyrroles, which date back from 2014.
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Affiliation(s)
- Duc Dau Xuan
- Department of Chemistry, Natural Science Education Institute, Vinh University, Vinh City, Vietnam
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12
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Paul B, Maji M, Chakrabarti K, Kundu S. Tandem transformations and multicomponent reactions utilizing alcohols following dehydrogenation strategy. Org Biomol Chem 2020; 18:2193-2214. [DOI: 10.1039/c9ob02760b] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this review, the progress of tandem transformation of nitro, nitrile and azide functionalities is summarised to develop new C–C and C–N bonds as well as multi-component reactions using alcohols.
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Affiliation(s)
- Bhaskar Paul
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Milan Maji
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Kaushik Chakrabarti
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Sabuj Kundu
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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13
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Leng J, Xu H, Meng J, Luo X, Deng WP. Transition-metal-free synthesis of polysubstituted pyrrole derivatives via [4 + 1] annulation of β-keto acids (C1 synthon) and α,β-unsaturated imines. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Zhang J, An Z, Zhu Y, Shu X, Song H, Jiang Y, Wang W, Xiang X, Xu L, He J. Ni0/Niδ+ Synergistic Catalysis on a Nanosized Ni Surface for Simultaneous Formation of C–C and C–N Bonds. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03245] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jian Zhang
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhe An
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yanru Zhu
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xin Shu
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongyan Song
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yitao Jiang
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wenlong Wang
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xu Xiang
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Linlin Xu
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jing He
- State Key Laboratory of Chemical Resource Engineering & Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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15
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Alanthadka A, Bera S, Vellakkaran M, Banerjee D. Nickel-Catalyzed Double Dehydrogenative Coupling of Secondary Alcohols and β-Amino Alcohols To Access Substituted Pyrroles. J Org Chem 2019; 84:13557-13564. [DOI: 10.1021/acs.joc.9b01819] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Anitha Alanthadka
- Laboratory of Catalysis and Organic Synthesis, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Sourajit Bera
- Laboratory of Catalysis and Organic Synthesis, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Mari Vellakkaran
- Laboratory of Catalysis and Organic Synthesis, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Debasis Banerjee
- Laboratory of Catalysis and Organic Synthesis, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
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16
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González‐Soria MJ, Alonso F. Substrate‐Controlled Divergent Synthesis of Enaminones and Pyrroles from Indolizines and Nitroso Compounds. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- María José González‐Soria
- Instituto de Síntesis Orgánica (ISO) and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Alicante Apdo. 99 03080 Alicante Spain
| | - Francisco Alonso
- Instituto de Síntesis Orgánica (ISO) and Departamento de Química Orgánica, Facultad de CienciasUniversidad de Alicante Apdo. 99 03080 Alicante Spain
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17
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Abstract
Novel synthetic routes to the commonly encountered indole motif are highly sought after. Tetrahydro-1H-indoles were synthesized for the first time from secondary alcohols and 2aminocyclohexanol in the presence of a well-established iridium catalyst using a modified synthetic procedure recently developed for the synthesis of hydrocarbazoles. The catalyst is stabilized by an inexpensive and easy-to-synthesize triazine based PN5P pincer ligand. The reaction proceeds through acceptorless dehydrogenative condensation (ADC) and yields the title compound, dihydrogen, and water and can thus be classified as sustainable synthesis. Overall, five examples, three of which were previously unknown compounds, were prepared. The propitious isolated yields and the mild reaction conditions show the synthetic value of this approach. These tetrahydroindoles can be quantitatively dehydrogenated over a heterogeneous Pd catalyst to yield the corresponding indoles.
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18
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Singh K, Kabadwal LM, Bera S, Alanthadka A, Banerjee D. Nickel-Catalyzed Synthesis of N-Substituted Pyrroles Using Diols with Aryl- and Alkylamines. J Org Chem 2018; 83:15406-15414. [DOI: 10.1021/acs.joc.8b02666] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Khushboo Singh
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Lalit Mohan Kabadwal
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Anitha Alanthadka
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, India
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19
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Sultana Poly S, Siddiki SMAH, Touchy AS, Ting KW, Toyao T, Maeno Z, Kanda Y, Shimizu KI. Acceptorless Dehydrogenative Synthesis of Pyrimidines from Alcohols and Amidines Catalyzed by Supported Platinum Nanoparticles. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02814] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Sharmin Sultana Poly
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | | | - Abeda S. Touchy
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Kah Wei Ting
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Zen Maeno
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Yasuharu Kanda
- Applied Chemistry Research Unit, College of Environmental Technology, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran 050-8585, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
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20
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EL-Atawy MA, Ferretti F, Ragaini F. A Synthetic Methodology for Pyrroles from Nitrodienes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701814] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mohamed A. EL-Atawy
- Dipartimento di Chimica; Università degli Studi di Milano; Via Golgi 19 20133 Milano Italy
- Chemistry Department; Faculty of Science; Alexandria University; P.O. 426 Ibrahemia 21321 Alexandria Egypt
| | - Francesco Ferretti
- Dipartimento di Chimica; Università degli Studi di Milano; Via Golgi 19 20133 Milano Italy
| | - Fabio Ragaini
- Dipartimento di Chimica; Università degli Studi di Milano; Via Golgi 19 20133 Milano Italy
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21
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Li L, Luo Q, Cui H, Li R, Zhang J, Peng T. Air-stable Ruthenium(II)-NNN Pincer Complexes for the Efficient Coupling of Aromatic Diamines and Alcohols to 1H
-benzo[d
]imidazoles with the Liberation of H2. ChemCatChem 2018. [DOI: 10.1002/cctc.201800017] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Lin Li
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Qi Luo
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Huahua Cui
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Renjie Li
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Jing Zhang
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Tianyou Peng
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
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22
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Siddiki SMAH, Touchy AS, Jamil MAR, Toyao T, Shimizu KI. C-Methylation of Alcohols, Ketones, and Indoles with Methanol Using Heterogeneous Platinum Catalysts. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04442] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Abeda S. Touchy
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Md. A. R. Jamil
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
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23
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Tan DW, Li HX, Zhu DL, Li HY, Young DJ, Yao JL, Lang JP. Ligand-Controlled Copper(I)-Catalyzed Cross-Coupling of Secondary and Primary Alcohols to α-Alkylated Ketones, Pyridines, and Quinolines. Org Lett 2018; 20:608-611. [DOI: 10.1021/acs.orglett.7b03726] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Da-Wei Tan
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Hong-Xi Li
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Da-Liang Zhu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Hai-Yan Li
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - David James Young
- Faculty
of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - Jian-Lin Yao
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jian-Ping Lang
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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24
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Yu Q, Li X, Wang X, Liu J. Regioselective Synthesis of 2,5-Disubstituted Pyrroles via Stepwise Iododesilylation and Coupling Reactions. Aust J Chem 2018. [DOI: 10.1071/ch17341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A new protocol has been developed for the regioselective preparation of 2,5-disubstituted pyrroles. This approach is based on a stepwise iododesilylation and a subsequent coupling reaction, involving a 6-step pathway starting from the simplest pyrrole. A variety of 2,5-disubstituted pyrrole derivatives are accessible in moderate to good yields. In this study, the protection group for the pyrrole nitrogen is carefully chosen and N,N-dimethylaminosulfonyl is the final choice, which facilitates the subsequent double lithiation and makes the pyrrole moiety more stable. However, the attempted removal of this group fails under several different conditions. Instead, unexpected dimethylaminosulfonyl migration to the β-position of the pyrrole ring in the presence of tetrabutylammonium fluoride is observed.
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25
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Dang TT, Seayad AM. Efficient [Cu(NHC)]-Catalyzed Multicomponent Synthesis of Pyrroles. Chem Asian J 2017; 12:2383-2387. [DOI: 10.1002/asia.201701045] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Tuan Thanh Dang
- Faculty of Chemistry; VNU University of Science; Hanoi. 19 Le Thanh Tong street Hanoi Vietnam
| | - Abdul Majeed Seayad
- Organic Chemistry; Institute of Chemical and Engineering Sciences; 8 Biomedical Grove, #07-01 Neuros 138665 Singapore Singapore
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26
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27
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Daw P, Chakraborty S, Garg JA, Ben-David Y, Milstein D. Direct Synthesis of Pyrroles by Dehydrogenative Coupling of Diols and Amines Catalyzed by Cobalt Pincer Complexes. Angew Chem Int Ed Engl 2016; 55:14373-14377. [DOI: 10.1002/anie.201607742] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/20/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Prosenjit Daw
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | | | - Jai Anand Garg
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - Yehoshoa Ben-David
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - David Milstein
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
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28
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Daw P, Chakraborty S, Garg JA, Ben-David Y, Milstein D. Direct Synthesis of Pyrroles by Dehydrogenative Coupling of Diols and Amines Catalyzed by Cobalt Pincer Complexes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607742] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Prosenjit Daw
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | | | - Jai Anand Garg
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - Yehoshoa Ben-David
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - David Milstein
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
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