1
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Xie C, Guo Q, Wu X, Ye W, Hou G. Efficient Rh-Catalyzed Chemo- and Enantioselective Hydrogenation of 2-CF 3-Chromen/Thiochromen-4-ones. J Org Chem 2023; 88:15726-15738. [PMID: 37921031 DOI: 10.1021/acs.joc.3c01723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
A Rh-catalyzed highly chemo- and enantioselective hydrogenation of 2-CF3-chromen/thiochromen-4-ones was successfully established achieving excellent selectivity and high turnover numbers. Under mild conditions, a series of 2-CF3-chromen-4-ones were hydrogenated to provide the corresponding chiral 2-CF3-chroman-4-ones with excellent enantioselectivities (up to 99.9% ee) and achieve high turnover numbers (TON of up to 11,800). Moreover, the obtained hydrogenation products were also successfully transformed into other derivatives including the important intermediate of plasmepsin inhibitors with maintained enantiopurity.
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Affiliation(s)
- Chaochao Xie
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Qianling Guo
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Xiaoxue Wu
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | | | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
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2
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Ye YF, Li F, Chen JL, An ZQ, Zhang GY, Wang YB. Transition-Metal-Free Synthesis of 3-Acyl Chromones by the Tandem Reaction of Ynones and Methyl Salicylates. J Org Chem 2022; 87:14005-14015. [PMID: 36210518 DOI: 10.1021/acs.joc.2c01637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A facile and effective tandem reaction of ynones and methyl salicylates was developed to obtain a broad range of 3-acyl chromones in moderate-to-excellent yields. This protocol underwent a Michael addition and cyclization process, which exhibited easily accessible substrates, broad substrate scope, and high regioselectivity under mild and transition-metal-free conditions. Moreover, gram-scale reaction and further chemical transformation of the products were also further studied.
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Affiliation(s)
- Ya-Fang Ye
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Feng Li
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Jia-Le Chen
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Zi-Qian An
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Gui-Ying Zhang
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Yan-Bo Wang
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
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3
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Narváez O EG, Bonilla V. PM, Zurita DA, Alcívar L. CD, Heredia-Moya J, Ulic SE, Jios JL, Piro OE, Echeverría GA, Langer P. Synthesis, experimental and theoretical study of novel 2-haloalkyl (-CF2H, -CCl2H, -CF2CF3)-, 3-bromo and bromomethyl substituted chromones. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2020.109717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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4
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Wang J, Zhou Y, Wang X, Duan L, Duan J, Li W, Zhang A. Synthesis and Evaluation of Halogenated 5-(2-Hydroxyphenyl)pyrazoles as Pseudilin Analogues Targeting the Enzyme IspD in the Methylerythritol Phosphate Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3071-3078. [PMID: 32078770 DOI: 10.1021/acs.jafc.9b08057] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This work reports halogenated 5-(2-hydroxyphenyl)pyrazoles as pseudilin analogues with the potential to target the enzyme IspD in the methylerythritol phosphate (MEP) pathway. Such analogues were designed using the bioisosteric replacement of the pseudilin core structure and synthesized via an efficient three-step route. With AtIspD-based screening and pre- and post-emergence herbicidal tests, these compounds were demonstrated to have considerable activities against AtIspD, with IC50 up to 3.27 μM, and against model plants rape and barnyard grass, with moderate to excellent activities. At a rate of 150 g/ha in the greenhouse test, three compounds exhibited higher or comparable herbicidal activities than pseudilin. Molecular docking of representative compounds into the allosteric site of AtIspD revealed a binding mode similar to that of pseudilin. The established bioisosterism and synthesis method in this work may serve as an important tool for the development of new herbicides and antimicrobials targeting IspD in the MEP pathway.
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Affiliation(s)
- Jili Wang
- Key Laboratory of Pesticides & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Yaqing Zhou
- Key Laboratory of Pesticides & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Xiuwen Wang
- Key Laboratory of Pesticides & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Lixia Duan
- Key Laboratory of Pesticides & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Jiang Duan
- Key Laboratory of Pesticides & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Weiguo Li
- Key Laboratory of Pesticides & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
| | - Aidong Zhang
- Key Laboratory of Pesticides & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China
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5
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Synthesis of 8-carbo substituted 2-(trifluoromethyl)-4H-furo[2,3-h]chromen-4-ones and their thienoangelicin derivatives. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2019.109395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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6
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Yao J, Kong L, Li X. Rhodium-catalyzed coupling of arenes and fluorinated α-diazo diketones: synthesis of chromones. Chem Commun (Camb) 2020; 56:13169-13172. [DOI: 10.1039/d0cc05664b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Rh(iii)-Catalyzed synthesis of chromones using arenes and fluorinated diazo reagents via C–H activation, carbene insertion, and uncatalyzed intramolecular nucleophilic aromatic substitution.
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Affiliation(s)
- Jiayi Yao
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Lingheng Kong
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
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7
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Espitia Cogollo E, Piro OE, Echeverría GA, Tuttolomondo ME, Pérez H, Jios JL, Ulic SE. Hydrogen bonding interactions in fluorinated 1,2,3-triazole derivatives. NEW J CHEM 2020. [DOI: 10.1039/d0nj02914a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Comprehensive theoretical, structural and spectroscopic investigations on new substituted 1,2,3-triazoles in the solid state.
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Affiliation(s)
- E. Espitia Cogollo
- CEQUINOR (CONICET-UNLP)
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- (1900) La Plata
- Argentina
| | - O. E. Piro
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- (1900) La Plata
- Argentina
| | - G. A. Echeverría
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- (1900) La Plata
- Argentina
| | - M. E. Tuttolomondo
- INQUINOA-CONICET
- Instituto de Química Física
- Facultad de Bioquímica
- Química y Farmacia
- Universidad Nacional de Tucumán
| | - H. Pérez
- Departamento de Química Inorgánica
- Facultad de Química
- Universidad de La Habana
- La Habana 10400
- Cuba
| | - J. L. Jios
- Laboratorio UPL (UNLP-CIC)
- Campus Tecnológico Gonnet (CIC-BA)
- (1897) Gonnet
- Argentina
- Departamento de Química
| | - S. E. Ulic
- CEQUINOR (CONICET-UNLP)
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- (1900) La Plata
- Argentina
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8
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Synthesis and structural study of 2-(haloalkyl)-3-methylchromones. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02512-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Mrug GP, Biletska IM, Bondarenko SP, Sviripa VM, Frasinyuk MS. Trifluoroacetylation of 2‐Methyl‐ and 2‐Ethylchromones: A Convenient Access to 2‐Trifluoroacetonyl Chromones. ChemistrySelect 2019. [DOI: 10.1002/slct.201903629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Galyna P. Mrug
- V. P. Kukhar Institute of Bioorganic Chemistry and PetrochemistryNational Academy of Science of Ukraine Kyiv 02094 Ukraine
| | - Iryna M. Biletska
- V. P. Kukhar Institute of Bioorganic Chemistry and PetrochemistryNational Academy of Science of Ukraine Kyiv 02094 Ukraine
| | | | - Vitaliy M. Sviripa
- Department of Pharmaceutical Sciences College of PharmacyUniversity of Kentucky Lexington KY 40536-0509 USA
- Center for Pharmaceutical Research and InnovationCollege of PharmacyUniversity of Kentucky Lexington KY 40536-0509 USA
| | - Mykhaylo S. Frasinyuk
- V. P. Kukhar Institute of Bioorganic Chemistry and PetrochemistryNational Academy of Science of Ukraine Kyiv 02094 Ukraine
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10
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Zhang JW, Yang WW, Chen LL, Chen P, Wang YB, Chen DY. An efficient tandem synthesis of chromones from o-bromoaryl ynones and benzaldehyde oxime. Org Biomol Chem 2019; 17:7461-7467. [DOI: 10.1039/c9ob01387c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A transition-metal-free approach was developed to synthesize chromones from o-bromoaryl ynones and benzaldehyde oxime by sequential C–O bond formation.
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Affiliation(s)
- Jing-Wen Zhang
- Institute of Functional Organic Molecular Engineering
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Wan-Wan Yang
- Institute of Functional Organic Molecular Engineering
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Lu-Lu Chen
- Institute of Functional Organic Molecular Engineering
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Pei Chen
- Institute of Functional Organic Molecular Engineering
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Yan-Bo Wang
- Institute of Functional Organic Molecular Engineering
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Dan-Yun Chen
- Institute of Functional Organic Molecular Engineering
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
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11
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Chang MY, Chen YH, Wang HS. Cu(OAc)2 Mediated Synthesis of 3-Sulfonyl Chromen-4-ones. J Org Chem 2018; 83:2361-2368. [DOI: 10.1021/acs.joc.8b00177] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Meng-Yang Chang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department
of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Yu-Hsin Chen
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Heui-Sin Wang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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12
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Zheng Z, Wang Y, Xu M, Kong L, Wang M, Li Y. Transition-metal-free insertion reactions of alkynes into the C–N σ-bonds of imides: synthesis of substituted enamides or chromones. Chem Commun (Camb) 2018; 54:6192-6195. [DOI: 10.1039/c8cc03059f] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Transition-metal-free insertion of ynones into the C–N σ-bonds of imides for the chemo-selective synthesis of chromones or enamides.
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Affiliation(s)
- Zhong Zheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering, East China Normal University
- Shanghai 200241
- China
| | - Ye Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering, East China Normal University
- Shanghai 200241
- China
| | - Murong Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering, East China Normal University
- Shanghai 200241
- China
| | - Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering, East China Normal University
- Shanghai 200241
- China
| | - Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering, East China Normal University
- Shanghai 200241
- China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering, East China Normal University
- Shanghai 200241
- China
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13
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Alcívar León CD, Echeverría GA, Piro OE, Ulic SE, Jios JL, Pereañez JA, Henao Castañeda IC, Pérez H. The role of non-covalent interactions in some 2-trifluoromethylchromones in the solid state. NEW J CHEM 2017. [DOI: 10.1039/c7nj00481h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Intermolecular interactions in chromone systems and criteria for the existence of C–H⋯F hydrogen bonds involving organic fluorine have been focused on in this work.
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Affiliation(s)
- Christian David Alcívar León
- Centro de Investigación de Alimentos
- CIAL
- Facultad de Ciencias de la Ingeniería e Industrias
- Universidad Tecnológica Equinoccial
- EC171029 Quito
| | - Gustavo Alberto Echeverría
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- (1900) La Plata
- Republica Argentina
| | - Oscar Enrique Piro
- Departamento de Física
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata)
- (1900) La Plata
- Republica Argentina
| | - Sonia Elizabeth Ulic
- CEQUINOR (CONICET-UNLP)
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- La Plata
- Republica Argentina
| | - Jorge Luis Jios
- UNIDAD PLAPIMU-LASEISIC (UNLP-CIC)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- (1897) Gonnet
| | - Jaime Andrés Pereañez
- Programa de Ofidismo/Escorpionimo
- Facultad de Ciencias Farmacéuticas y Alimentarias
- Universidad de Antioquia UdeA
- Medellín
- Colombia
| | - Isabel Cristina Henao Castañeda
- Grupo de Productos Naturales Marinos
- Facultad de Ciencias Farmacéuticas y Alimentarias
- Universidad de Antioquia UdeA
- Medellín
- Colombia
| | - Hiram Pérez
- Departamento de Química Inorgánica
- Facultad de Química
- Universidad de La Habana
- La Habana 10400
- Cuba
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14
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Alcívar León C, Echeverría G, Piro O, Ulic S, Jios J, Burgos Paci M, Argüello G. The role of halogen C–X1⋯X2–C contact on the preferred conformation of 2-perhalomethylchromones in solid state. Chem Phys 2016. [DOI: 10.1016/j.chemphys.2016.03.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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15
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Alcívar León CD, Echeverría GA, Piro OE, Ulic SE, Jios JL. A detailed experimental and theoretical study of two novel substituted trifluoromethylchromones. The influence of the bulky bromine atom on the crystal packing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1358-1370. [PMID: 25459694 DOI: 10.1016/j.saa.2014.10.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 09/11/2014] [Accepted: 10/11/2014] [Indexed: 06/04/2023]
Abstract
The new 3-methyl-2-trifluoromethylchromone (1) and 3-bromomethyl-2-trifluoromethylchromone (2) compounds were synthesized and characterized by vibrational (IR, Raman), UV-Vis and NMR ((1)H, (13)C and (19)F) spectroscopy and MS spectrometry. The crystal structures of 1 and 2 were determined by X-ray diffraction methods. Both compounds crystallize in the monoclinic P21/c space group with Z=4 molecules per unit cell. The structures were solved from 1423 (1) and 1856 (2) reflections with I>2σ (I) and refined by full-matrix least-squares to agreement R1-values of 0.0403 (1) and 0.0554 (2). Because of π-bonding delocalization, the organic molecular skeletons are planar and the molecular bonding structures can be described by formally single, double and resonant bonds. In 2, the CF3 group revealed a strong rotational disorder around the CCF3 bond, which could be explained in terms of four split positions with about uniform angular distribution. The vibrational, electronic and NMR, spectra were discussed and assigned with the assistance of DFT calculations.
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Affiliation(s)
- C D Alcívar León
- CEQUINOR (CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, 1900 La Plata, Argentina
| | - G A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), C.C. 67, 1900 La Plata, Argentina
| | - O E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), C.C. 67, 1900 La Plata, Argentina
| | - S E Ulic
- CEQUINOR (CONICET-UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, 1900 La Plata, Argentina; Departamento de Ciencias Básicas, Universidad Nacional de Luján, Rutas 5 y 7, 6700 Luján, Buenos Aires, Argentina.
| | - J L Jios
- LASEISIC-PLAPIMU (UNLP-CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, 1900 La Plata, Argentina.
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16
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17
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Gaspar A, Matos MJ, Garrido J, Uriarte E, Borges F. Chromone: A Valid Scaffold in Medicinal Chemistry. Chem Rev 2014; 114:4960-92. [DOI: 10.1021/cr400265z] [Citation(s) in RCA: 472] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Alexandra Gaspar
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Santiago of Compostela, 15782 Santiago de Compostela, Spain
| | - Maria João Matos
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Santiago of Compostela, 15782 Santiago de Compostela, Spain
| | - Jorge Garrido
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
- Department
of Chemical Engineering, School of Engineering (ISEP), Polytechnic of Porto, 4200-072 Porto, Portugal
| | - Eugenio Uriarte
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Santiago of Compostela, 15782 Santiago de Compostela, Spain
| | - Fernanda Borges
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
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18
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Sapegin AV, Kalinin SA, Smirnov AV, Dorogov MV, Krasavin M. New tetracyclic 1,4-oxazepines constructed via practically simple tandem condensation strategy from readily available synthons. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Avendaño Jiménez LP, Echeverría GA, Piro OE, Ulic SE, Jios JL. Vibrational, Electronic, and Structural Properties of 6-Nitro- and 6-Amino-2-Trifluoromethylchromone: An Experimental and Theoretical Study. J Phys Chem A 2013; 117:2169-80. [DOI: 10.1021/jp312683s] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. P. Avendaño Jiménez
- CEQUINOR (CONICET-UNLP),
Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, (1900) La Plata, República
Argentina
| | - G. A. Echeverría
- Departamento
de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata),
C. C. 67, (1900) La Plata, República Argentina
| | - O. E. Piro
- Departamento
de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata),
C. C. 67, (1900) La Plata, República Argentina
| | - S. E. Ulic
- CEQUINOR (CONICET-UNLP),
Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, (1900) La Plata, República
Argentina
- Departamento de Ciencias Básicas, Universidad Nacional de Luján, Rutas 5 y 7,
(6700) Luján, Buenos Aires, República Argentina
| | - J. L. Jios
- LASEISIC-PLAPIMU (UNLP-CIC), Departamento
de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, (1900) La Plata, República
Argentina
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20
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Reactions of 2-(trifluoromethyl)chromones with cyanoacetamides, ethyl cyanoacetate and diethyl malonate. Unexpected synthesis of benzo[c]coumarin derivatives. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.082] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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