1
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Flaget A, Mazet C. Access to 1,2- and 1,3-Amino Alcohols via Cu-Catalyzed Enantioselective Borylations of Allylamines. Org Lett 2024. [PMID: 39357061 DOI: 10.1021/acs.orglett.4c03170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
We report Cu-catalyzed enantioselective borylation/oxidation sequences that afford either enantioenriched 1,2- or 1,3-amino alcohols starting from N,N-protected allylamines as a common platform. The approach is based on the mechanistic specificities of catalytic hydroboration and protoboration reactions, which formally install a boron unit and a hydrogen atom at opposite positions of a C═C bond. The nature of the substituents of the carbon-carbon double bond also exerts a determining influence on the regioselectivity of insertion of the catalytically active Cu species. Both protocols are regio- and enantioselective and applicable to a broad range of substrates. Homoallylamines are also competent substrates, providing access to 1,3- and 1,4-amino alcohols.
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Affiliation(s)
- Arthur Flaget
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
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2
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Rossetti A, Sacchetti A, Meneghetti F, Colombo Dugoni G, Mori M, Castellano C. Synthesis and Characterization of New Triazole-Bispidinone Scaffolds and Their Metal Complexes for Catalytic Applications. Molecules 2023; 28:6351. [PMID: 37687179 PMCID: PMC10489160 DOI: 10.3390/molecules28176351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/07/2023] [Accepted: 08/12/2023] [Indexed: 09/10/2023] Open
Abstract
Bispidines are a family of ligands that plays a pivotal role in various areas of coordination chemistry, with applications in medicinal chemistry, molecular catalysis, coordination polymers synthesis, and molecular magnetism. In the present work, triazole moieties were introduced using the CuAAC click-reaction, with the aim of expanding the number of coordination sites on the bispidine core. The 1,2,3-triazole rings were thus synthesized on propargyl-derived bispidines after reaction with different alkyl azides. The new class of triazole-bispidines was characterized, and their chelation capabilities were evaluated with different metals through NMR titration, ESI-MS spectrometry, and single-crystal X-ray diffraction (SC-XRD). Finally, the suitability of these molecules as metal ligands for the catalytic Henry reaction was demonstrated with copper and zinc.
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Affiliation(s)
- Arianna Rossetti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy; (A.S.); (G.C.D.)
- INSTM—Local Unit c/o Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy
| | - Alessandro Sacchetti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy; (A.S.); (G.C.D.)
- INSTM—Local Unit c/o Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy
| | - Fiorella Meneghetti
- Department of Pharmaceutical Sciences, University of Milan, Via L. Mangiagalli 25, 20133 Milano, Italy;
| | - Greta Colombo Dugoni
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy; (A.S.); (G.C.D.)
| | - Matteo Mori
- Department of Pharmaceutical Sciences, University of Milan, Via L. Mangiagalli 25, 20133 Milano, Italy;
| | - Carlo Castellano
- Department of Chemistry, University of Milan, Via C. Golgi 19, 20133 Milano, Italy;
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3
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Sacchetti A, Urra Mancilla C, Colombo Dugoni G. Synthesis of DPA-triazole structures and their application as ligand for metal catalyzed organic reactions. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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4
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Xia Y, Jiang M, Liu M, Zhang Y, Qu H, Xiong T, Huang H, Cheng D, Chen F. Catalytic Syn-Selective Nitroaldol Approach to Amphenicol Antibiotics: Evolution of a Unified Asymmetric Synthesis of (-)-Chloramphenicol, (-)-Azidamphenicol, (+)-Thiamphenicol, and (+)-Florfenicol. J Org Chem 2021; 86:11557-11570. [PMID: 34387504 DOI: 10.1021/acs.joc.1c01124] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A unified strategy for an efficient and high diastereo- and enantioselective synthesis of (-)-chloramphenicol, (-)-azidamphenicol, (+)-thiamphenicol, and (+)-florfenicol based on a key catalytic syn-selective Henry reaction is reported. The stereochemistry of the ligand-enabled copper(II)-catalyzed aryl aldehyde Henry reaction of nitroethanol was first explored to forge a challenging syn-2-amino-1,3-diol structure unit with vicinal stereocenters with excellent stereocontrol. Multistep continuous flow manipulations were carried out to achieve the efficient asymmetric synthesis of this family of amphenicol antibiotics.
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Affiliation(s)
- Yingqi Xia
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Meifen Jiang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Minjie Liu
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Yan Zhang
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Hongmin Qu
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Tong Xiong
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Huashan Huang
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Dang Cheng
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Fener Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.,Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
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5
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6
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Rénio MR, Sousa FJ, Tavares NC, Valente AJ, Silva Serra ME, Murtinho D. (3
S
,4
S
)‐
N
‐substituted‐3,4‐dihydroxypyrrolidines as ligands for the enantioselective Henry reaction. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Márcia R.R. Rénio
- CQC and Department of Chemistry University of Coimbra Coimbra 3004‐535 Portugal
| | | | - Nélia C.T. Tavares
- CQC and Department of Chemistry University of Coimbra Coimbra 3004‐535 Portugal
| | - Artur J.M. Valente
- CQC and Department of Chemistry University of Coimbra Coimbra 3004‐535 Portugal
| | | | - Dina Murtinho
- CQC and Department of Chemistry University of Coimbra Coimbra 3004‐535 Portugal
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7
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Abstract
This review collects for the first time enantioselective one-pot processes promoted
by green chiral zinc catalysts. It illustrates how much these cheap, non-toxic and environmentally
benign catalysts allow unprecedented asymmetric domino and tandem reactions of many
types to be achieved, allowing direct access to a wide variety of very complex chiral molecules.
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Affiliation(s)
- Hélène Pellissier
- Aix-Marseille University, CNRS, Centrale Marseille, iSm2, Marseille, France
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8
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Veltri L, Amuso R, Petrilli M, Cuocci C, Chiacchio MA, Vitale P, Gabriele B. A Zinc-Mediated Deprotective Annulation Approach to New Polycyclic Heterocycles. Molecules 2021; 26:molecules26082318. [PMID: 33923572 PMCID: PMC8072660 DOI: 10.3390/molecules26082318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/12/2021] [Accepted: 04/15/2021] [Indexed: 11/25/2022] Open
Abstract
A straightforward approach to new polycyclic heterocycles, 1H-benzo[4,5]imidazo[1,2-c][1,3]oxazin-1-ones, is presented. It is based on the ZnCl2-promoted deprotective 6-endo-dig heterocyclization of N-Boc-2-alkynylbenzimidazoles under mild conditions (CH2Cl2, 40 °C for 3 h). The zinc center plays a dual role, as it promotes Boc deprotection (with formation of the tert-butyl carbocation, which can be trapped by substrates bearing a nucleophilic group) and activates the triple bond toward intramolecular nucleophilic attack by the carbamate group. The structure of representative products has been confirmed by X-ray diffraction analysis.
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Affiliation(s)
- Lucia Veltri
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036 Arcavacata di Rende, Italy; (R.A.); (M.P.)
- Correspondence: (L.V.); (B.G.); Tel.: +39-0984-492817 (L.V.); +39-0984-492815 (B.G.)
| | - Roberta Amuso
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036 Arcavacata di Rende, Italy; (R.A.); (M.P.)
| | - Marzia Petrilli
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036 Arcavacata di Rende, Italy; (R.A.); (M.P.)
| | - Corrado Cuocci
- Institute of Crystallography, National Research Council, Via Amendola, 122/O, 70126 Bari, Italy;
| | - Maria A. Chiacchio
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy;
| | - Paola Vitale
- Department of Pharmacy—Pharmaceutical Sciences, University of Bari “Aldo Moro”, Via E. Orabona 4, 70125 Bari, Italy;
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036 Arcavacata di Rende, Italy; (R.A.); (M.P.)
- Correspondence: (L.V.); (B.G.); Tel.: +39-0984-492817 (L.V.); +39-0984-492815 (B.G.)
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9
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Palmieri A, Petrini M. Synthesis and practical applications of 2-(2-nitroalkyl)pyrroles. Org Biomol Chem 2021; 18:4533-4546. [PMID: 32510092 DOI: 10.1039/d0ob00956c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Functionalization of pyrroles introducing a 2-nitroalkyl moiety allows the formation of nitro-containing compounds to be used as pivotal intermediates for the synthesis of bioactive compounds. The reaction of pyrroles with nitroalkenes under the Friedel-Crafts conditions allows a direct entry to 2-(2-nitroalkyl)pyrroles. This approach can also be used for the preparation of enantioenriched derivatives exploiting asymmetric catalysis. In a complementary fashion, the Henry reaction between 2-formylpyrroles and nitroalkanes generates the corresponding nitroaldol products which upon dehydration and reduction of the intermediate 2-pyrrolylnitroethene efficiently afford 2-(2-nitroalkyl)pyrroles. This review article summarizes the most relevant procedures for the preparation of 2-(2-nitroalkyl)pyrroles during the last two decades as well as their significant practical applications.
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Affiliation(s)
- Alessandro Palmieri
- School of Science and Technology, Chemistry Division, University of Camerino, Via S. Agostino n. 1, 62032 Camerino (MC), Italy.
| | - Marino Petrini
- School of Science and Technology, Chemistry Division, University of Camerino, Via S. Agostino n. 1, 62032 Camerino (MC), Italy.
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10
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Lupidi G, Palmieri A, Petrini M. Synthesis of Nitro Alcohols by Riboflavin Promoted Tandem Nef‐Henry Reactions on Nitroalkanes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gabriele Lupidi
- School of Science and Technology Chemistry Division University of Camerino Via S. Agostino 1 62032 Camerino
| | - Alessandro Palmieri
- School of Science and Technology Chemistry Division University of Camerino Via S. Agostino 1 62032 Camerino
| | - Marino Petrini
- School of Science and Technology Chemistry Division University of Camerino Via S. Agostino 1 62032 Camerino
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11
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Yoshimura T, Umeda Y, Takahashi R, Matsuo JI. Development of Nitrolactonization Mediated by Iron(III) Nitrate Nonahydrate. Chem Pharm Bull (Tokyo) 2020; 68:1220-1225. [PMID: 33268654 DOI: 10.1248/cpb.c20-00645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The nitrolactonization of alkenyl carboxylic acids mediated by Fe(NO3)3·9H2O has been developed. Nitrolactones were obtained in up to 93% yield by treatment of alkenyl carboxylic acids with Fe(NO3)3·9H2O. Mechanistic studies disclosed that the reaction proceeded through a radical intermediate generated from addition of NO2 to alkenyl carboxylic acids.
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Affiliation(s)
- Tomoyuki Yoshimura
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University
| | - Yuki Umeda
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University
| | - Risako Takahashi
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University
| | - Jun-Ichi Matsuo
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University
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12
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Colombo Dugoni G, Sacchetti A, Mele A. Deep eutectic solvent as solvent and catalyst: one-pot synthesis of 1,3-dinitropropanes via tandem Henry reaction/Michael addition. Org Biomol Chem 2020; 18:8395-8401. [PMID: 32845266 DOI: 10.1039/d0ob01516d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The Henry reaction was performed using microwave heating within the deep eutectic solvent (DES) choline chloride/urea (ChCl/urea) which acted as both the catalyst and solvent for the reaction. The optimisation of the conditions (temperature, heating mode, time, DES) allowed 1,3-dinitropropane derivatives to be obtained via tandem Henry reaction/Michael addition, in one step from a range of different aromatic aldehydes in high yields and under mild reaction conditions.
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Affiliation(s)
- Greta Colombo Dugoni
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy.
| | - Alessandro Sacchetti
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy.
| | - Andrea Mele
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy. and CNR-ICRM Istituto di Chimica del Riconoscimento Molecolare, "U.O.S. Milano Politecnico", Via L. Mancinelli, 7, 20131 Milano, Italy
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13
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Rao DHS, Shivani K, Padhi SK. Immobilized Arabidopsis thaliana Hydroxynitrile Lyase-Catalyzed Retro-Henry Reaction in the Synthesis of (S)-β-Nitroalcohols. Appl Biochem Biotechnol 2020; 193:560-576. [PMID: 33044692 DOI: 10.1007/s12010-020-03442-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/29/2020] [Indexed: 12/01/2022]
Abstract
Enantiopure β-nitroalcohols are versatile intermediates used in the synthesis of important pharmaceuticals and chiral synthons. In this article, immobilized Arabidopsis thaliana HNL (AtHNL)-catalyzed preparation of (S)-β-nitroalcohols from their racemic mixtures via retro-Henry reaction was studied. AtHNL used in biocatalysis was immobilized by physical adsorption in inexpensive celite®545. Under optimized biocatalytic conditions, the total turnover number of the catalyst has improved 2.3-fold for (S)-2-nitro-1-phenylethanol (NPE) synthesis, than free enzyme catalysis. This study reported for the first time celite-AtHNL-catalyzed retro-Henry reaction at low pH. At pH 4.5 and 5.0, 62% ee and 41% conversion, and 97% ee and 42% conversion of (S)-NPE were obtained respectively, while the free enzyme inactivates at pH < 5.0. The increased catalytic efficiency and pH stability of the catalyst could be possibly due to increased stability of AtHNL by immobilization. A dozen of racemic β-nitroalcohols were converted into their corresponding (S)-β-nitroalcohols using this reaction; among them, eight were not tested earlier. The immobilized enzyme has showed broad substrate selectivity in the retro-Henry reaction, and products were obtained up to 98.5% ee.
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Affiliation(s)
- D H Sreenivasa Rao
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Kummari Shivani
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Santosh Kumar Padhi
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India.
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14
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Kaur J, Kaur BP, Chimni SS. Recent advances in the catalytic synthesis of 3-aminooxindoles: an update. Org Biomol Chem 2020; 18:4692-4708. [DOI: 10.1039/d0ob00777c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
3-Substituted-3-aminooxindoles are versatile scaffolds and these motifs constitute the core structure of number of natural products and biologically active compounds.
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Affiliation(s)
- Jasneet Kaur
- Post-Graduate Department of Chemistry
- Khalsa College Amritsar
- India
| | - Banni Preet Kaur
- Department of Chemistry
- U.G.C. Centre of Advance Study-II
- Guru Nanak Dev University
- Amritsar
- India
| | - Swapandeep Singh Chimni
- Department of Chemistry
- U.G.C. Centre of Advance Study-II
- Guru Nanak Dev University
- Amritsar
- India
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15
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Dong L, Chen FE. Asymmetric catalysis in direct nitromethane-free Henry reactions. RSC Adv 2020; 10:2313-2326. [PMID: 35494598 PMCID: PMC9048686 DOI: 10.1039/c9ra10263a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 01/06/2020] [Indexed: 11/21/2022] Open
Abstract
This review summarizes the current state and applications of catalytic Henry reactions involving complex nitroalkanes coupling with various carbonyl compounds to generate chiral β-nitro alcohol scaffolds with four adjacent stereogenic centers.
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Affiliation(s)
- Lin Dong
- Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. of China
| | - Fen-Er Chen
- Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. of China
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16
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Ichimura T, Kishida R, Nakata K. Acylative Kinetic Resolution of Racemic 2,2‐Dimethyl‐Substituted Nitroaldol (Henry) Adducts Using a Chiral Guanidine Catalyst: (
R
)‐(+)‐
N
‐Methylbenzoguanidine ((
R
)‐NMBG). ChemistrySelect 2019. [DOI: 10.1002/slct.201902236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Taiju Ichimura
- Department of ChemistryGraduate School of Natural Science and TechnologyShimane University 1060 Nishikawatsu, Matsue Shimane 690-8504 Japan
| | - Ryota Kishida
- Department of ChemistryGraduate School of Natural Science and TechnologyShimane University 1060 Nishikawatsu, Matsue Shimane 690-8504 Japan
| | - Kenya Nakata
- Department of ChemistryGraduate School of Natural Science and TechnologyShimane University 1060 Nishikawatsu, Matsue Shimane 690-8504 Japan
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17
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Sreedevi R, Saranya S, Rohit KR, Anilkumar G. Recent Trends in Iron‐Catalyzed Reactions towards the Synthesis of Nitrogen‐Containing Heterocycles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801471] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Radhakrishnan Sreedevi
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
| | - Salim Saranya
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
| | - K. R. Rohit
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
| | - Gopinathan Anilkumar
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
- Advanced Molecular Materials Research Centre (AMMRC)Mahatma Gandhi University Priyadarsini Hills, P O Kottayam 686560 India
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18
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Babu SA, Saranya S, Rohit KR, Anilkumar G. Ligand-Free Cu-Catalyzed Suzuki Coupling of Alkynyl Bromides with Boronic Acids in Ethanol Under Microwave Irradiation. ChemistrySelect 2019. [DOI: 10.1002/slct.201803144] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sheba Ann Babu
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala; INDIA 686 560
| | - Salim Saranya
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala; INDIA 686 560
| | - K. R. Rohit
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala; INDIA 686 560
| | - Gopinathan Anilkumar
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala; INDIA 686 560
- Advanced Molecular Materials Research Centre (AMMRC); Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala; INDIA 686 560
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19
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Gabrielli S, Mariotti N, Chiurchiù E, Ballini R, Petrini M, Palmieri A. Synthetic Approach to the Preparation of (2-Acetoxy)allyl Nitro Compounds. J Org Chem 2018; 83:12855-12862. [PMID: 30251854 DOI: 10.1021/acs.joc.8b01744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A synthetic approach to a new class of allyl nitro derivatives is reported. (2-Acetoxy)allyl nitro compounds have been prepared for the first time in a four-step procedure by a preliminary reaction of nitroalkanes with 2-(phenylselenyl)acetaldehyde. After the acetylation of the obtained nitro alcohols, the unsaturation is installed by an oxidation reaction involving the phenylselenyl group followed by a thermal elimination. The oxidation process is accomplished under flow conditions ensuring a notable lowering of overoxidation by products observed in batch.
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Affiliation(s)
- Serena Gabrielli
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Nicole Mariotti
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Elena Chiurchiù
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Roberto Ballini
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Marino Petrini
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Alessandro Palmieri
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
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20
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Keerthi Krishnan K, Ujwaldev SM, Saranya S, Anilkumar G, Beller M. Recent Advances and Perspectives in the Synthesis of Heterocycles
via
Zinc Catalysis. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800868] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- K. Keerthi Krishnan
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686 560 India
| | | | - Salim Saranya
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686 560 India
| | - Gopinathan Anilkumar
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686 560 India
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock) Albert-Einstein Straße 29a 18059 Rostock Germany
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21
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Stepanov AV, Mel’nik KE, Isaeva VI, Kapustin GI, Chernyshev VV, Veselovsky VV. The Henry reaction catalyzed by zeolitic imidazolate framework ZIF-8. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.01.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Rohit KR, Ujwaldev SM, Krishnan KK, Anilkumar G. Recent Developments and Perspectives in the Zinc-Catalysed Michael Addition. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700491] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- K. R. Rohit
- School of Chemical Sciences; Mahatma Gandhi University; PD Hills P.O. Kottayam Kerala 686560 India
| | - S. M. Ujwaldev
- School of Chemical Sciences; Mahatma Gandhi University; PD Hills P.O. Kottayam Kerala 686560 India
| | - K. Keerthi Krishnan
- School of Chemical Sciences; Mahatma Gandhi University; PD Hills P.O. Kottayam Kerala 686560 India
| | - Gopinathan Anilkumar
- School of Chemical Sciences; Mahatma Gandhi University; PD Hills P.O. Kottayam Kerala 686560 India
- Advanced Molecular Materials Research Centre (AMMRC); Mahatma Gandhi University; PD Hills P.O. Kottayam Kerala 686560 India
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