1
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Guo W, Gong H, Yuan W, Zhou H, Tao L, Zhu J. Pd-catalyzed CO-free double carbonylation for the synthesis of 1,4-ketoesters with Mo(CO) 6 as the carbonyl source. Chem Commun (Camb) 2024; 60:9606-9609. [PMID: 39145744 DOI: 10.1039/d4cc03044c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
An unprecedented Pd-catalyzed CO-free double carbonylation using Mo(CO)6 as a safe carbonyl source for the efficient synthesis of 1,4-ketoesters in an atom- and step-economic manner has been developed. The current method features operational safety, a wide substrate range, good functional group compatibility and easy scale-up. The application of carbonylation using a safe carbonyl source for the synthesis of biologically and synthetically useful carbonyl-containing molecules is underway in our lab.
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Affiliation(s)
- Wenting Guo
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, Jiangsu, China.
| | - Houhong Gong
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, Jiangsu, China.
| | - Wei Yuan
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, Jiangsu, China.
| | - Hualan Zhou
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, Jiangsu, China.
| | - Li Tao
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, Jiangsu, China.
| | - Jing Zhu
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, Jiangsu, China.
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2
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Desmons S, Bonin J, Robert M, Bontemps S. Four-electron reduction of CO 2: from formaldehyde and acetal synthesis to complex transformations. Chem Sci 2024:d4sc02888k. [PMID: 39246334 PMCID: PMC11376136 DOI: 10.1039/d4sc02888k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 08/02/2024] [Indexed: 09/10/2024] Open
Abstract
The expansive and dynamic field of the CO2 Reduction Reaction (CO2RR) seeks to harness CO2 as a sustainable carbon source or energy carrier. While significant progress has been made in two, six, and eight-electron reductions of CO2, the four-electron reduction remains understudied. This review fills this gap, comprehensively exploring CO2 reduction into formaldehyde (HCHO) or acetal-type compounds (EOCH2OE, with E = [Si], [B], [Zr], [U], [Y], [Nb], [Ta] or -R) using various CO2RR systems. These encompass (photo)electro-, bio-, and thermal reduction processes with diverse reductants. Formaldehyde, a versatile C1 product, is challenging to synthesize and isolate from the CO2RR. The review also discusses acetal compounds, emphasizing their significance as pathways to formaldehyde with distinct reactivity. Providing an overview of the state of four-electron CO2 reduction, this review highlights achievements, challenges, and the potential of the produced compounds - formaldehyde and acetals - as sustainable sources for valuable product synthesis, including chiral compounds.
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Affiliation(s)
- Sarah Desmons
- LCC-CNRS, Université de Toulouse, CNRS 205 route de Narbonne 31077 Toulouse Cedex 04 France
| | - Julien Bonin
- Laboratoire d'Electrochimie Moléculaire, Université Paris Cité, CNRS F-75013 Paris France
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS F-75005 Paris France
| | - Marc Robert
- Laboratoire d'Electrochimie Moléculaire, Université Paris Cité, CNRS F-75013 Paris France
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS F-75005 Paris France
- Institut Universitaire de France (IUF) F-75005 Paris France
| | - Sébastien Bontemps
- LCC-CNRS, Université de Toulouse, CNRS 205 route de Narbonne 31077 Toulouse Cedex 04 France
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3
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Morita M, Hosoya T, Miyafuji H. CO formation from glucose and cellulose as treated in ionic liquids. Carbohydr Res 2023; 534:108961. [PMID: 37769374 DOI: 10.1016/j.carres.2023.108961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/05/2023] [Accepted: 09/20/2023] [Indexed: 09/30/2023]
Abstract
The formation of carbon monoxide (CO) from glucose and cellulose by the treatment with various ionic liquids was studied. Ionic liquids with an imidazolium structure as cation and the chloride or acetate as anion were used. Additionally, 1,8-diazabicyclo [5.4.0]undec-7-ene (DBU) was employed as an additive. CO was generated from glucose with a maximum yield of 0.57 mol% after 90 min of treatment at 120 °C in the reaction system in which DBU was added to the ionic liquid. Pyrolysis above 600 °C has been commonly employed for the gasification of lignocellullosics to produce useful gases such as CO. However, this study has revealed that gasification of lignocellullosics to produce CO can occur at significantly lower temperature, specifically at 120 °C.
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Affiliation(s)
- Mayu Morita
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Takashi Hosoya
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Hisashi Miyafuji
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan.
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4
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Can Üsküp H, Yıldız T, Onar HÇ, Hasdemir B. Synthesis of Novel 1,4-Diketone Derivatives and Their Further Cyclization. ACS OMEGA 2023; 8:14047-14052. [PMID: 37091374 PMCID: PMC10116510 DOI: 10.1021/acsomega.3c00610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/29/2023] [Indexed: 05/03/2023]
Abstract
One of the important reactions to obtain a new carbon-carbon bond is the Stetter reaction, which is generally via a nucleophilic catalyst like cyanide or thiazolium-NHC catalysts. In particular, 1,4-diketones with very functional properties are obtained by the Stetter reaction with the intermolecular reaction of an aldehyde and an α,β-unsaturated ketone. In this study, we synthesized new derivatives (substituted arenoxy) of 1,4-diketone compounds (2a-2n) with useful features by a new version of the Stetter reaction method. In our work, arenoxy benzaldehyde derivatives with different structures as the Michael donor and methyl vinyl ketone as the Michael acceptor were used for the intermolecular Stetter reaction. The reaction was catalyzed by 3-benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chloride (3b), using triethylamine for the basic medium and dimethyl sulfoxide as the solvent. As a result, some novel arenoxy-substituted 1,4-diketones were gained with good yields at room temperature within 24 h through an intermolecular Stetter reaction. In addition, new furan and pyrrole derivatives were prepared by performing the cyclization reaction with one of the obtained new diketone compounds.
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Affiliation(s)
- Hacer Can Üsküp
- Department of Chemistry,
Organic Chemistry Division, Istanbul University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
| | - Tülay Yıldız
- Department of Chemistry,
Organic Chemistry Division, Istanbul University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
| | - Hülya Ç. Onar
- Department of Chemistry,
Organic Chemistry Division, Istanbul University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
| | - Belma Hasdemir
- Department of Chemistry,
Organic Chemistry Division, Istanbul University-Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
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5
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Li JL, Yang SL, Dai QS, Huang H, Jiang L, Li QZ, Wang QW, Zhang X, Han B. Modular synthesis of 1,4-diketones through regioselective bis-acylation of olefins by merging NHC and photoredox catalysis. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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6
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Liu D, Yang K, Fang D, Li SJ, Lan Y, Chen Y. Formyl Radical Generation from α-Chloro N-Methoxyphthalimides Enables Selective Aldehyde Synthesis. Angew Chem Int Ed Engl 2023; 62:e202213686. [PMID: 36342432 DOI: 10.1002/anie.202213686] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 11/09/2022]
Abstract
The aldehydes installation by radical formylation constitutes an attractive synthetic strategy. However, the generation of formyl radicals for organic synthesis applications remains unknown. Herein we report the first formyl radical generation from α-chloro N-methoxyphthalimides, which selectively synthesize aldehydes by alkene hydroformylation under mild photoredox conditions. The aldehydes can be installed on acrylates, acrylamides, vinyl sulfones, vinyl ketones, and complex steroids by radical hydroformylation in excellent chemoselectivity and regioselectivity. The concerted hydrochloride elimination for the formyl radical generation from α-chloro methoxy radicals is established by experimental and computational approaches.
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Affiliation(s)
- Dan Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Kai Yang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Di Fang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Shi-Jun Li
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Yu Lan
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China.,School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030, China
| | - Yiyun Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China.,School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, China.,School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China
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7
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NHC-catalyzed [3 + 4] annulation between 2-dromoenal and aryl 1,2-diamine: Insights into mechanisms, chemo and stereoselectivities. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Desymmetrization of N-Cbz glutarimides through N-heterocyclic carbene organocatalysis. Nat Commun 2022; 13:4042. [PMID: 35831292 PMCID: PMC9279320 DOI: 10.1038/s41467-022-31760-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/29/2022] [Indexed: 01/12/2023] Open
Abstract
Over the past decade, the catalysis of N-heterocyclic carbenes has achieved significant advances. In this area, aldehydes, enals, and esters, are commonly employed as starting materials through various catalytic activation modes. However, NHC-activated strategy of amide and its derivatives remains elusive. Described herein is the realization of asymmetric desymmetrization of N-Cbz glutarimides with alcohols through an imide C-N bond cleavage under NHC organocatalysis. A structurally diverse set of enantioenriched 4-amido esters is generated with acceptable yields and high enantioselectivities. This method features mild reaction conditions, excellent substrate scope, and excellent atom economy. DFT calculations have been performed to explore the detailed reaction mechanism and the origin of the enantioselectivity, which indicate that the strength of the C-H···O hydrogen bond and C–H⋯π interactions should be responsible for the stereoselectivity. The current strategy could open a door for efficient construction of (R)-Rolipram with excellent stereoselectivity. Desymmetrization of achiral building blocks is one of the most efficient ways to access enantiopure compounds of synthetic relevance. Here, the authors desymmetrize glutarimides with alcohols via an imide C–N bond cleavage under NHC organocatalysis.
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9
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Wu MC, Chen YX, Li MZ, Xiao JA, Ye ZP, Guan JP, Xiang HY, Chen K, Yang H. Photocatalyzed Defluorinative Dichloromethylation of α-CF 3 Alkenes Using CHCl 3 as the Radical Source. J Org Chem 2022; 88:6354-6363. [PMID: 35723452 DOI: 10.1021/acs.joc.2c01106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A visible-light-induced defluorinative dichloromethylation of α-CF3 alkenes was developed with cheap and readily accessible chloroform simultaneously as a dichloromethylation reagent and reaction medium, leading to the facile preparation of new polyhalogenated scaffolds. Notably, the change from CHCl3 to CDCl3 offers a straightforward pathway for accessing the deuterated analogues with excellent degrees of D incorporation. Mechanistic studies suggested the reaction underwent a radical addition of the dichloromethyl radical with alkenes, followed by sequential single-electron transfer and defluorination. This protocol features mild conditions, easy operation, facile scalability, and high efficiency, allowing convenient access to dichloronated gem-difluoroalkenes.
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Affiliation(s)
- Mei-Chun Wu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,College of Chemistry and Chemical Engineering, Huaihua University, Huaihua 418008, P. R. China
| | - Yi-Xuan Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Ming-Zhi Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jun-An Xiao
- College of Chemistry and Materials Science, Nanning Normal University, Nanning 530001, P. R. China
| | - Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jian-Ping Guan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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10
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NHC Catalyzed β-Carbon functionalization of carboxylic esters towards formation of δ-Lactams: A mechanistic study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Casajus H, Lagarde A, Nauton L, Ocal N, Leremboure M, Fessner WD, Duguet N, Charmantray F, Hecquet L. Cleavage of Aliphatic α-Hydroxy Ketones by Evolved Transketolase from Geobacillus stearothermophilus. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hubert Casajus
- Université Clermont Auvergne, CNRS, Clermont INP, Institut de Chimie de Clermont-Ferrand (ICCF), F-63000 Clermont-Ferrand, France
| | - Aurélie Lagarde
- Université Clermont Auvergne, CNRS, Clermont INP, Institut de Chimie de Clermont-Ferrand (ICCF), F-63000 Clermont-Ferrand, France
| | - Lionel Nauton
- Université Clermont Auvergne, CNRS, Clermont INP, Institut de Chimie de Clermont-Ferrand (ICCF), F-63000 Clermont-Ferrand, France
| | - Nazim Ocal
- Université Clermont Auvergne, CNRS, Clermont INP, Institut de Chimie de Clermont-Ferrand (ICCF), F-63000 Clermont-Ferrand, France
| | - Martin Leremboure
- Université Clermont Auvergne, CNRS, Clermont INP, Institut de Chimie de Clermont-Ferrand (ICCF), F-63000 Clermont-Ferrand, France
| | - Wolf-Dieter Fessner
- Institut für Organische Chemie und Biochemie, Technische Universität Darmstadt, Alarich-Weiss-Strasse 4, 64287 Darmstadt, Germany
| | - Nicolas Duguet
- Univ Lyon, Université Claude-Bernard Lyon 1, CNRS, INSA-Lyon, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), F-69100 Villeurbanne, France
| | - Franck Charmantray
- Université Clermont Auvergne, CNRS, Clermont INP, Institut de Chimie de Clermont-Ferrand (ICCF), F-63000 Clermont-Ferrand, France
| | - Laurence Hecquet
- Université Clermont Auvergne, CNRS, Clermont INP, Institut de Chimie de Clermont-Ferrand (ICCF), F-63000 Clermont-Ferrand, France
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12
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Raja D, Philips A, Sundaramurthy D, Chandru Senadi G. Sustainable Synthesis of 2-Hydroxymethylbenzimidazoles using D-Fructose as a C 2 Synthon. Chem Asian J 2021; 16:3754-3759. [PMID: 34549532 DOI: 10.1002/asia.202100972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/17/2021] [Indexed: 12/11/2022]
Abstract
D-fructose, a biomass-derived carbohydrate has been identified as an environmentally benign C2 synthon in the preparation of synthetically useful 2-hydroxymethylbenzimidazole derivatives by coupling with 1,2-phenylenediamines. Proof of concept was established by synthesizing 23 examples using BF3 .OEt2 (20 mol%), TBHP (5.5 M, decane) (1.0 equiv.) in CH3 CN at 90 °C for 1 h. The pivotal features of this method include metal-free conditions, short time, good functional group tolerance, gram scale feasibility and the synthesis of benzimidazole fused 1,4-oxazine. Control studies with conventional C2 synthons did not produce the desired product, thus suggesting a new reaction pathway from D-fructose.
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Affiliation(s)
- Dineshkumar Raja
- SRMIST: SRM Institute of Science and Technology, Department of Chemistry, Mahatma Gandhi Rd, Potheri, SRM Nagar, 603203, Kattankulathur, India
| | - Abigail Philips
- SRMIST: SRM Institute of Science and Technology, Department of Chemistry, Mahatma Gandhi Rd, Potheri, SRM Nagar, 603203, Kattankulathur, India
| | - Devikala Sundaramurthy
- SRMIST: SRM Institute of Science and Technology, Department of Chemistry, Mahatma Gandhi Rd, Potheri, SRM Nagar, 603203, Kattankulathur, India
| | - Gopal Chandru Senadi
- SRMIST: SRM Institute of Science and Technology, Department of Chemistry, Mahatma Gandhi Rd, Potheri, SRM Nagar, 603203, Kattankulathur, India
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13
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Rostami A, Ebrahimi A, Sakhaee N, Golmohammadi F, Al-Harrasi A. Microwave-Assisted Electrostatically Enhanced Phenol-Catalyzed Synthesis of Oxazolidinones. J Org Chem 2021; 87:40-55. [PMID: 34581567 DOI: 10.1021/acs.joc.1c01686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An electrostatically enhanced phenol is utilized as a straightforward, sustainable, and potent one-component organocatalyst for the atom-economic transformation of epoxides to oxazolidinones under microwave irradiation. Integrating a positively charged center into phenols over a modular one-step preparation gives rise to a bifunctional system with improved acidity and activity, competent in rapid assembly of epoxides and isocyanates under microwave irradiation in a short reaction time (20-60 min). A careful assessment of the efficacy of various positively charged phenols and anilines and the impact of several factors, such as catalyst loading, temperature, and the kind of nucleophile, on catalytic reactivity were examined. Under neat conditions, this one-component catalytic platform was exploited to prepare more than 40 examples of oxazolidinones from a variety of aryl- and alkyl-substituted epoxides and isocyanates within minutes, where up to 96% yield and high degree of selectivity were attained. DFT calculations to achieve reaction barriers for different catalytic routes were conducted to provide mechanistic understanding and corroborated the experimental findings in which concurrent epoxide ring-opening and isocyanate incorporation were proposed.
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Affiliation(s)
- Ali Rostami
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Amirhossein Ebrahimi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Nader Sakhaee
- Roger Adams Laboratory, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Farhad Golmohammadi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
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14
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Philips A, Raja D, Arumugam A, Lin W, Chandru Senadi G. Copper‐Catalyzed Oxidative C−C Cleavage of Carbohydrates: An Efficient Access to Quinazolinone Scaffolds. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100317] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Abigail Philips
- Department of Chemistry, Faculty of Engineering and Technology SRM Institute of Science and Technology Kattankulathur Tamilnadu 603203 India
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung 80708 Taiwan
| | - Dineshkumar Raja
- Department of Chemistry, Faculty of Engineering and Technology SRM Institute of Science and Technology Kattankulathur Tamilnadu 603203 India
| | - Ajithkumar Arumugam
- Department of Chemistry, Faculty of Engineering and Technology SRM Institute of Science and Technology Kattankulathur Tamilnadu 603203 India
| | - Wei‐Yu Lin
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung 80708 Taiwan
- Department of Medical Research Kaohsiung Medical University Hospital Kaohsiung 80708 Taiwan
| | - Gopal Chandru Senadi
- Department of Chemistry, Faculty of Engineering and Technology SRM Institute of Science and Technology Kattankulathur Tamilnadu 603203 India
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15
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Dai W, Li M, Wei J, Yang Q, Feng Y, Yang C, Yang W, Wang MY, Ma X. Mechanistic insight into formaldehyde hydroformylation catalyzed by rhodium complexes: A theoretical and experimental study. J Catal 2021. [DOI: 10.1016/j.jcat.2021.04.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Ma YC, Luo JY, Zhang SC, Lu SH, Du GF, He L. An N-heterocyclic carbene-catalyzed switchable reaction of 9-(trimethylsilyl)fluorene and aldehydes: chemoselective synthesis of dibenzofulvenes and fluorenyl alcohols. Org Biomol Chem 2021; 19:3717-3721. [PMID: 33908559 DOI: 10.1039/d1ob00065a] [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
An N-heterocyclic carbene-catalyzed synthesis of dibenzofulvenes and fluorenyl alcohols was developed. In the presence of 10 mol% NHC (1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) and 4 Å molecular sieves, 9-(trimethylsilyl)fluorene undergoes an olefination reaction with aldehydes to produce dibenzofulvenes in 43-99% yields. However, on reducing the NHC loading to 1 mol% and with the addition of water, 9-(trimethylsilyl)fluorene selectively undergoes nucleophilic addition with aldehydes to afford fluorenyl alcohols in 40-95% yields.
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Affiliation(s)
- Yu-Chuan Ma
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang, Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China.
| | - Jin-Yun Luo
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang, Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China.
| | - Shi-Chu Zhang
- College of Sciences, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
| | - Shu-Hui Lu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang, Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China.
| | - Guang-Fen Du
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang, Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China.
| | - Lin He
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang, Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China.
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17
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Barik S, Shee S, Das S, Gonnade RG, Jindal G, Mukherjee S, Biju AT. NHC‐Catalyzed Desymmetrization of N‐Aryl Maleimides Leading to the Atroposelective Synthesis of N‐Aryl Succinimides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016938] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Soumen Barik
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Sayan Shee
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Soumik Das
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
| | - Garima Jindal
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Subrata Mukherjee
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Akkattu T. Biju
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
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18
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Barik S, Shee S, Das S, Gonnade RG, Jindal G, Mukherjee S, Biju AT. NHC‐Catalyzed Desymmetrization of N‐Aryl Maleimides Leading to the Atroposelective Synthesis of N‐Aryl Succinimides. Angew Chem Int Ed Engl 2021; 60:12264-12268. [DOI: 10.1002/anie.202016938] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/04/2021] [Indexed: 12/11/2022]
Affiliation(s)
- Soumen Barik
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Sayan Shee
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Soumik Das
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
| | - Garima Jindal
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Subrata Mukherjee
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
| | - Akkattu T. Biju
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012 India
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19
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Xu J, Ding A, Zhang Y, Guo H. Photochemical Synthesis of 1,4-Dicarbonyl Bifluorene Compounds via Oxidative Radical Coupling Using TEMPO as the Oxygen Atom Donor. J Org Chem 2021; 86:3656-3666. [PMID: 33513019 DOI: 10.1021/acs.joc.0c02781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A visible-light-induced metal-free synthesis of 1,4-dicarbonyl compounds from alkyne-containing aryl iodides via photochemical C-I bond cleavage, intramolecular cyclization, oxidation, and intermolecular radical coupling sequence is reported. TEMPO was employed as the oxygen atom donor in this transformation. This protocol provided a new strategy for the synthesis of 1,4-dicarbonyl bifluorene compounds.
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Affiliation(s)
- Jincheng Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Aishun Ding
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Yanbin Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Hao Guo
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
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20
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Rezazadeh Khalkhali M, Wilde MMD, Gravel M. Enantioselective Stetter Reactions Catalyzed by Bis(amino)cyclopropenylidenes: Important Role for Water as an Additive. Org Lett 2021; 23:155-159. [PMID: 33320678 DOI: 10.1021/acs.orglett.0c03879] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first highly enantioselective intermolecular Stetter reaction using simple enones is reported. A series of novel chiral BAC structures were designed and prepared. They were tested in the Stetter reaction with simple aldehydes and enones. The products were generated in excellent yields and enantioselectivities (up to 94% ee). Surprisingly, a substoichiometric amount of water was crucial to obtain high enantioselectivities. Chiral BACs were also shown to catalyze 1,6-conjugate addition reactions with paraquinone methides enantioselectively.
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Affiliation(s)
| | - Myron M D Wilde
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
| | - Michel Gravel
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
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21
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Wang Y, Liu Y, Gong K, Zhang H, Lan Y, Wei D. Theoretical study of the NHC-catalyzed C–S bond cleavage and reconstruction reaction: mechanism, stereoselectivity, and role of catalysts. Org Chem Front 2021. [DOI: 10.1039/d1qo00706h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The mechanism of the NHC-catalyzed C–S bond activation reaction has been theoretically studied and ELF analysis along with IRC results shows that the NHC promotes the cleavage of the C–S bond via an SN2 process.
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Affiliation(s)
- Yang Wang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, 136 Science Avenue, Zhengzhou, Henan Province, 450002, P. R. China
| | - Yue Liu
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, 136 Science Avenue, Zhengzhou, Henan Province, 450002, P. R. China
| | - Kaili Gong
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, 136 Science Avenue, Zhengzhou, Henan Province, 450002, P. R. China
| | - Han Zhang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, 136 Science Avenue, Zhengzhou, Henan Province, 450002, P. R. China
| | - Yu Lan
- College of Chemistry (Center of Green Catalysis), Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan Province, 450001, P. R. China
| | - Donghui Wei
- College of Chemistry (Center of Green Catalysis), Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan Province, 450001, P. R. China
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22
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23
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Roy Chowdhury S, Singh D, Hoque IU, Maity S. Organic Dye-Catalyzed Intermolecular Radical Coupling of α-Bromocarbonyls with Olefins: Photocatalytic Synthesis of 1,4-Ketocarbonyls Using Air as an Oxidant. J Org Chem 2020; 85:13939-13950. [DOI: 10.1021/acs.joc.0c01985] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Deepak Singh
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, JH 826004, India
| | - Injamam Ul Hoque
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, JH 826004, India
| | - Soumitra Maity
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, JH 826004, India
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24
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Wang J, Shao P, Lin X, Ma B, Wen J, Zhang X. Facile Synthesis of Enantiopure Sugar Alcohols: Asymmetric Hydrogenation and Dynamic Kinetic Resolution Combined. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006661] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jiang Wang
- School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School University Town Nanshan District Shenzhen 518055 China
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Pan‐Lin Shao
- College of Innovation and Entrepreneurship Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Xin Lin
- College of Innovation and Entrepreneurship Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Baode Ma
- College of Innovation and Entrepreneurship Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Jialin Wen
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Academy for Advanced Interdisciplinary Studies Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Xumu Zhang
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
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25
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Wang J, Shao P, Lin X, Ma B, Wen J, Zhang X. Facile Synthesis of Enantiopure Sugar Alcohols: Asymmetric Hydrogenation and Dynamic Kinetic Resolution Combined. Angew Chem Int Ed Engl 2020; 59:18166-18171. [DOI: 10.1002/anie.202006661] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/17/2020] [Indexed: 01/20/2023]
Affiliation(s)
- Jiang Wang
- School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School University Town Nanshan District Shenzhen 518055 China
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Pan‐Lin Shao
- College of Innovation and Entrepreneurship Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Xin Lin
- College of Innovation and Entrepreneurship Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Baode Ma
- College of Innovation and Entrepreneurship Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Jialin Wen
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Academy for Advanced Interdisciplinary Studies Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Xumu Zhang
- Guangdong Provincial Key Laboratory of Catalysis Department of Chemistry Southern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
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26
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Zhang H, Luo Y, Zhu C, Dong S, Liu X, Feng X. Catalytic Asymmetric Addition Reactions of Formaldehyde N, N-Dialkylhydrazone to Synthesize Chiral Nitrile Derivatives. Org Lett 2020; 22:5217-5222. [PMID: 32525683 DOI: 10.1021/acs.orglett.0c01857] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A number of nitrile-containing chiral molecules were synthesized via asymmetric nucleophilic addition of formaldehyde N,N-dialkylhydrazone as the nitrile equivalent. Chiral N,N'-dioxide/metal salt complexes enabled the asymmetric addition reactions to both isatin-derived imines and α,β-unsaturated ketones, generating amino nitriles and 4-oxobutanenitrile derivatives in good yields with high enantioselectivities. This protocol was highlighted by avoiding the use of toxic nitrile reagents, wide substrate scope, and versatile transformations of chiral hydrazone adducts into other valuable molecules.
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yao Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Chenhao Zhu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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27
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Verma RS, Mishra M, Pandey CB, Kumar S, Tiwari B. Global Access to 3/4-Phosphorylated Heterocycles via a Carbene-Catalyzed Stetter Reaction of Vinylphosphonates and Aldehydes. J Org Chem 2020; 85:8166-8175. [DOI: 10.1021/acs.joc.0c00150] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ram Subhawan Verma
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Monika Mishra
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Chandra Bhan Pandey
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Shailesh Kumar
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
| | - Bhoopendra Tiwari
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
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28
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Yu T, Zhu Q, Luo S. Pd-catalyzed imine-directed intramolecular C N bond formation through C(sp3) H activation: An efficient approach to multisubstituted pyrroles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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29
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Mazzanti S, Kurpil B, Pieber B, Antonietti M, Savateev A. Dichloromethylation of enones by carbon nitride photocatalysis. Nat Commun 2020; 11:1387. [PMID: 32170119 PMCID: PMC7070069 DOI: 10.1038/s41467-020-15131-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 02/13/2020] [Indexed: 01/17/2023] Open
Abstract
Small organic radicals are ubiquitous intermediates in photocatalysis and are used in organic synthesis to install functional groups and to tune electronic properties and pharmacokinetic parameters of the final molecule. Development of new methods to generate small organic radicals with added functionality can further extend the utility of photocatalysis for synthetic needs. Herein, we present a method to generate dichloromethyl radicals from chloroform using a heterogeneous potassium poly(heptazine imide) (K-PHI) photocatalyst under visible light irradiation for C1-extension of the enone backbone. The method is applied on 15 enones, with γ,γ-dichloroketones yields of 18–89%. Due to negative zeta-potential (−40 mV) and small particle size (100 nm) K-PHI suspension is used in quasi-homogeneous flow-photoreactor increasing the productivity by 19 times compared to the batch approach. The resulting γ,γ-dichloroketones, are used as bifunctional building blocks to access value-added organic compounds such as substituted furans and pyrroles. Long-lived carbon nitride radicals have been used in several photocatalytic reactions. Herein, long-lived potassium poly(heptazine imide) radicals enable synthesis of γ,γ-dichloroketones from enones by addition of CHCl2 moiety, generated from chloroform, to the C=C bond.
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Affiliation(s)
- Stefano Mazzanti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Bogdan Kurpil
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Bartholomäus Pieber
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Markus Antonietti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Aleksandr Savateev
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany.
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30
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Gut A, Stosz M, Łapok Ł, Stadnicka KM, Nowakowska M. Accessing Symmetrical Tetraphenyl‐pyrrole‐2‐yl Squaraines Through an Improved Synthesis of 2,4‐Diphenylpyrrole. ChemistrySelect 2020. [DOI: 10.1002/slct.201904581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Arkadiusz Gut
- Faculty of ChemistryJagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Maria Stosz
- Faculty of ChemistryJagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Łukasz Łapok
- Faculty of ChemistryJagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | | | - Maria Nowakowska
- Faculty of ChemistryJagiellonian University Gronostajowa 2 30-387 Kraków Poland
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31
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Rauch M, Strater Z, Parkin G. Selective Conversion of Carbon Dioxide to Formaldehyde via a Bis(silyl)acetal: Incorporation of Isotopically Labeled C1 Moieties Derived from Carbon Dioxide into Organic Molecules. J Am Chem Soc 2019; 141:17754-17762. [DOI: 10.1021/jacs.9b08342] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Michael Rauch
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Zack Strater
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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32
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Desmons S, Fauré R, Bontemps S. Formaldehyde as a Promising C1 Source: The Instrumental Role of Biocatalysis for Stereocontrolled Reactions. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03128] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sarah Desmons
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
- TBI, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - Régis Fauré
- TBI, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
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33
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Liu W, Zhao LL, Melaimi M, Cao L, Xu X, Bouffard J, Bertrand G, Yan X. Mesoionic Carbene (MIC)-Catalyzed H/D Exchange at Formyl Groups. Chem 2019. [DOI: 10.1016/j.chempr.2019.08.011] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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34
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Zhu K, Ohtani T, Tripathi CB, Uraguchi D, Ooi T. Formal Hydroformylation of α,β-Unsaturated Carboxylic Acids under Photoexcited Ketone Catalysis. CHEM LETT 2019. [DOI: 10.1246/cl.190197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Kailong Zhu
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Tsuyoshi Ohtani
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Chandra Bhushan Tripathi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Daisuke Uraguchi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8601, Japan
- CREST, Japan Science and Technology Agency (JST), Nagoya University, Nagoya, Aichi 464-8601, Japan
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35
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Zhao P, Wu X, Zhou Y, Geng X, Wang C, Wu YD, Wu AX. Direct Synthesis of 2,3-Diaroyl Quinolines and Pyridazino[4,5-b]quinolines via an I2-Promoted One-Pot Multicomponent Reaction. Org Lett 2019; 21:2708-2711. [DOI: 10.1021/acs.orglett.9b00685] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Can Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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36
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Charvieux A, Duc Vu N, Duguet N, Lemaire M. Valorization of Methyl Azelaaldehydate - A Vegetable Oil Based Platform Molecule for the Synthesis of Monomers through Stetter Reaction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aubin Charvieux
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
| | - Nam Duc Vu
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
| | - Nicolas Duguet
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
| | - Marc Lemaire
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
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37
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Zhuo S, Zhu T, Zhou L, Mou C, Chai H, Lu Y, Pan L, Jin Z, Chi YR. Access to All‐Carbon Spirocycles through a Carbene and Thiourea Cocatalytic Desymmetrization Cascade Reaction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810638] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shitian Zhuo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Tingshun Zhu
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Liejin Zhou
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Chengli Mou
- School of PharmacyGuiyang College of Traditional Chinese Medicine Guiyang 550025 China
| | - Huifang Chai
- School of PharmacyGuiyang College of Traditional Chinese Medicine Guiyang 550025 China
| | - Yunpeng Lu
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Lutai Pan
- School of PharmacyGuiyang College of Traditional Chinese Medicine Guiyang 550025 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou University Huaxi District Guiyang 550025 China
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38
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Zhuo S, Zhu T, Zhou L, Mou C, Chai H, Lu Y, Pan L, Jin Z, Chi YR. Access to All‐Carbon Spirocycles through a Carbene and Thiourea Cocatalytic Desymmetrization Cascade Reaction. Angew Chem Int Ed Engl 2019; 58:1784-1788. [DOI: 10.1002/anie.201810638] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Shitian Zhuo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Tingshun Zhu
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Liejin Zhou
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Chengli Mou
- School of PharmacyGuiyang College of Traditional Chinese Medicine Guiyang 550025 China
| | - Huifang Chai
- School of PharmacyGuiyang College of Traditional Chinese Medicine Guiyang 550025 China
| | - Yunpeng Lu
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Lutai Pan
- School of PharmacyGuiyang College of Traditional Chinese Medicine Guiyang 550025 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural BioengineeringKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou University Huaxi District Guiyang 550025 China
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39
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Draskovits M, Kalaus H, Stanetty C, Mihovilovic MD. Intercepted dehomologation of aldoses by N-heterocyclic carbene catalysis – a novel transformation in carbohydrate chemistry. Chem Commun (Camb) 2019; 55:12144-12147. [DOI: 10.1039/c9cc05906g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Examples of strong substrate governance and tuning of selectivity between two borderline scenarios by successful catalyst design are reported.
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Affiliation(s)
| | - Hubert Kalaus
- Institute of Applied Synthetic Chemistry
- TU Wien
- 1060 Vienna
- Austria
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40
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Chalotra N, Ahmed A, Rizvi MA, Hussain Z, Ahmed QN, Shah BA. Photoredox Generated Vinyl Radicals: Synthesis of Bisindoles and β-Carbolines. J Org Chem 2018; 83:14443-14456. [DOI: 10.1021/acs.joc.8b02193] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Neha Chalotra
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Ajaz Ahmed
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | | | - Zakir Hussain
- Department of Chemistry, University of Kashmir, Srinagar 190006, India
| | - Qazi Naveed Ahmed
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Bhahwal Ali Shah
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
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41
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Glenadel Q, Nassar Y, Raffier L, Veys S, Piva O. Merging metathesis and photochemical Csp3-H activation: Access to masked β-formyl hexanolides and their rearrangement to furofuranones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.06.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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42
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Verma RS, Pandey CB, Kumar S, Tiwari B. Carbene-Catalyzed Tandem [1,2]-Phospha-Brook/[1,4]-Phosphate Rearrangement: Access to α-Ketophosphates via Controlled Cross-Acyloin Condensation. J Org Chem 2018; 83:9478-9483. [DOI: 10.1021/acs.joc.8b01172] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ram Subhawan Verma
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Chandra Bhan Pandey
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
| | - Shailesh Kumar
- Department of Applied Chemistry, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
| | - Bhoopendra Tiwari
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS-Campus, Raebareli Road, Lucknow 226014, India
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43
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Liu B, Yan J, Huang R, Wang W, Jin Z, Zanoni G, Zheng P, Yang S, Chi YR. Kinetic Resolution of 1,2-Diols via NHC-Catalyzed Site-Selective Esterification. Org Lett 2018; 20:3447-3450. [DOI: 10.1021/acs.orglett.8b01029] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bin Liu
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jiekuan Yan
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Ruoyan Huang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Weihong Wang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
- Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Pengcheng Zheng
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Song Yang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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44
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Vu ND, Bah S, Deruer E, Duguet N, Lemaire M. Robust Organocatalysts for the Cleavage of Vegetable Oil Derivatives to Aldehydes through Retrobenzoin Condensation. Chemistry 2018; 24:8141-8150. [DOI: 10.1002/chem.201800091] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Nam Duc Vu
- Univ Lyon, Université Claude Bernard Lyon1; CNRS, INSA; CPE-Lyon; Institut de Chimie et Biochimie Moléculaires et, Supramoléculaires; ICBMS; UMR 5246; Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN); 43, bd du 11 novembre 1918 69622 Villeurbanne cedex France
| | - Souleymane Bah
- Univ Lyon, Université Claude Bernard Lyon1; CNRS, INSA; CPE-Lyon; Institut de Chimie et Biochimie Moléculaires et, Supramoléculaires; ICBMS; UMR 5246; Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN); 43, bd du 11 novembre 1918 69622 Villeurbanne cedex France
| | - Elsa Deruer
- Univ Lyon, Université Claude Bernard Lyon1; CNRS, INSA; CPE-Lyon; Institut de Chimie et Biochimie Moléculaires et, Supramoléculaires; ICBMS; UMR 5246; Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN); 43, bd du 11 novembre 1918 69622 Villeurbanne cedex France
| | - Nicolas Duguet
- Univ Lyon, Université Claude Bernard Lyon1; CNRS, INSA; CPE-Lyon; Institut de Chimie et Biochimie Moléculaires et, Supramoléculaires; ICBMS; UMR 5246; Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN); 43, bd du 11 novembre 1918 69622 Villeurbanne cedex France
| | - Marc Lemaire
- Univ Lyon, Université Claude Bernard Lyon1; CNRS, INSA; CPE-Lyon; Institut de Chimie et Biochimie Moléculaires et, Supramoléculaires; ICBMS; UMR 5246; Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN); 43, bd du 11 novembre 1918 69622 Villeurbanne cedex France
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45
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Ahire MM, Mhaske SB. Isa‒NHC‒catalyzed intermolecular Stetter reaction of aromatic aldehydes with maleimides: An efficient access to 3‒aroylsuccinimides. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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46
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Hamoud A, Barthélémy P, Desvergnes V. An organocatalyzed Stetter reaction as a bio-inspired tool for the synthesis of nucleic acid-based bioconjugates. Org Biomol Chem 2018; 16:1760-1769. [PMID: 29464261 DOI: 10.1039/c8ob00192h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An N-Heterocyclic Carbene (NHC) catalyzed biomimetic Stetter reaction was applied for the first time as a bioconjugation reaction to sensitive nucleoside-type biomolecules to provide original pyrrole linked nucleolipids. A versatile approach allowed the functionalization of thymidine at the three reactive positions (O-5', O-3' and N-3) providing a structural diversity oriented synthesis. This strategy was applied to the synthesis of an original glyconucleolipid amphiphile in the hope that the pyrrole aromatic moiety would induce additional self-assembling properties.
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Affiliation(s)
- Aladin Hamoud
- University of Bordeaux, UMR 5320 CNRS, INSERM U1212, ChemBioPharm Team, 146 rue Leo Saignat, UFR Pharmacie, 3ième tranche, 4ième étage, 33076 Bordeaux Cedex, France.
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47
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N-Heterocyclic Carbene-Catalyzed Double Michael Addition: Stereoselective Synthesis of Spirofluorenes and Multisubstituted Indanes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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48
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Liu B, Wang W, Huang R, Yan J, Wu J, Xue W, Yang S, Jin Z, Chi YR. Direct Activation of β-sp 3-Carbons of Saturated Carboxylic Esters as Electrophilic Carbons via Oxidative Carbene Catalysis. Org Lett 2017; 20:260-263. [PMID: 29239615 DOI: 10.1021/acs.orglett.7b03650] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An N-heterocyclic carbene-catalyzed oxidative LUMO activation of the β-cabons of saturated carboxylic esters is disclosed. This approach allows for efficient asymmetric access to lactams and lactones by directly installing functional groups to the typically inert β-sp3 carbons of saturated esters. The use of HOBt as an additive was found to significantly improve both yields and enantioselectivities of the reactions.
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Affiliation(s)
- Bin Liu
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Weihong Wang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Ruoyan Huang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Jiekuan Yan
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Jichang Wu
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Wei Xue
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Song Yang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University , Huaxi District, Guiyang 550025, China.,Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
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49
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Fleige M, Glorius F. α-Unsubstituted Pyrroles by NHC-Catalyzed Three-Component Coupling: Direct Synthesis of a Versatile Atorvastatin Derivative. Chemistry 2017; 23:10773-10776. [PMID: 28666059 DOI: 10.1002/chem.201703008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Indexed: 12/13/2022]
Abstract
A practical one-pot cascade reaction protocol provides direct access to valuable 1,2,4-trisubstituted pyrroles. The process involves an N-heterocyclic carbene (NHC)-catalyzed Stetter-type hydroformylation using glycolaldehyde dimer as a novel C1 building-block, followed by a Paal-Knorr condensation with primary amines. The reaction makes use of simple and commercially available starting-materials and catalyst, an important feature regarding applicability and utility. Low catalyst loading under mild reaction conditions afforded a variety of 1,2,4-substituted pyrroles in a transition-metal-free reaction with high step economy and good yields. This methodology is applied in the synthesis of a versatile Atorvastatin precursor, in which a variety of modifications at the pyrrole core structure are possible.
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Affiliation(s)
- Mirco Fleige
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149, Münster, Germany
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149, Münster, Germany
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50
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Wang G, Fu Z, Huang W. Access to Amide from Aldimine via Aerobic Oxidative Carbene Catalysis and LiCl as Cooperative Lewis Acid. Org Lett 2017; 19:3362-3365. [PMID: 28654279 DOI: 10.1021/acs.orglett.7b01195] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, an efficient route to amides from aldimines via aza-Breslow intermediates through aerobic oxidative carbene catalysis with LiCl as a cooperative Lewis acid is described. Many of the obtained N-heteroarylamides feature biological activity. Ambient air was used as the sole oxidant and source of oxygen in this catalytically oxidative amidation. This method allows for a broad substrate scope and mild conditions. The aza-Breslow intermediate derivative was isolated and its crystal structure confirmed.
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Affiliation(s)
- Guanjie Wang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China
| | - Zhenqian Fu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China.,Key Laboratory for Organic Electronics and Information Displays, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
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