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Liu J, Zuo S, Huang J, Zhang F, Zuo A. Synthesis of unsymmetrical 1,3-substituted-1,3-dihydro-benzimidazolones via copper-catalyzed C–N coupling under visible light. NEW J CHEM 2022. [DOI: 10.1039/d2nj02054h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Although photoinduced copper catalysis for carbon–nitrogen (C–N) amine bond formation with alkyl/aryl halides has been developed, the potential of copper photocatalysis for the synthesis of 1,3-substituted benzimidazolones remains mostly unexplored.
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Affiliation(s)
- Jianjun Liu
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Shengli Zuo
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Jieying Huang
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Fan Zhang
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Ang Zuo
- Department of Pharmaceutical Sciences, College of Pharmacy and UICentre (Drug Discovery at UIC), University of Illinois at Chicago, Chicago, Illinois 60612, USA
- SynChem, Inc., 1400 Chase Avenue, Elk Grove Village, Illinois 60007, USA
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Espinoza-Hicks C, Montoya P, Bautista R, Jiménez-Vázquez HA, Rodríguez-Valdez LM, Camacho-Dávila AA, Cossío FP, Delgado F, Tamariz J. Synthesis of exo-Imidazolidin-2-one Dienes, Their Isomerization, and Selectivity in Diels-Alder Cycloadditions. J Org Chem 2018; 83:5347-5364. [PMID: 29697257 DOI: 10.1021/acs.joc.7b02344] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient and alternative synthesis of exo-imidazolidin-2-one dienes is described. A condensation reaction was carried out with bis-imino derivatives, diacetyl, and triphosgene, affording symmetrically N, N-disubstituted dienes. The use of alkyl methyl α-diketones led to the formation of nonsymmetrical dienes, which underwent isomerization to provide more stable inner-outer-ring dienes under Lewis acid conditions. Evaluation was made of the reactivity as well as regio- and stereoselectivity of these dienes in Diels-Alder reactions. They proved to be highly reactive and selective. DFT calculations of the transition states accounted for their behavior.
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Affiliation(s)
- Carlos Espinoza-Hicks
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Prol. Carpio y Plan de Ayala, S/N , Mexico City 11340 , Mexico.,Departamento de Química Orgánica, Facultad de Ciencias Químicas , Universidad Autónoma de Chihuahua , Circuito Universitario S/N , Chihuahua , Chih. 31125 , Mexico
| | - Pablo Montoya
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Prol. Carpio y Plan de Ayala, S/N , Mexico City 11340 , Mexico
| | - Rafael Bautista
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Prol. Carpio y Plan de Ayala, S/N , Mexico City 11340 , Mexico
| | - Hugo A Jiménez-Vázquez
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Prol. Carpio y Plan de Ayala, S/N , Mexico City 11340 , Mexico
| | - Luz M Rodríguez-Valdez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas , Universidad Autónoma de Chihuahua , Circuito Universitario S/N , Chihuahua , Chih. 31125 , Mexico
| | - Alejandro A Camacho-Dávila
- Departamento de Química Orgánica, Facultad de Ciencias Químicas , Universidad Autónoma de Chihuahua , Circuito Universitario S/N , Chihuahua , Chih. 31125 , Mexico
| | - Fernando P Cossío
- Departamento de Química Orgánica I and ORFEO-CINQA , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) , PO Box 1072, San Sebastián/Donostia 20018 , Spain
| | - Francisco Delgado
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Prol. Carpio y Plan de Ayala, S/N , Mexico City 11340 , Mexico
| | - Joaquín Tamariz
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Prol. Carpio y Plan de Ayala, S/N , Mexico City 11340 , Mexico
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Jones CL, Marsden EA, Nevin AC, Kariuki BM, Bhadbhade MM, Martin AD, Easun TL. Investigating the geometrical preferences of a flexible benzimidazolone-based linker in the synthesis of coordination polymers. ROYAL SOCIETY OPEN SCIENCE 2017; 4:171064. [PMID: 29308246 PMCID: PMC5750013 DOI: 10.1098/rsos.171064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
A series of new group 2 coordination polymers, MgL ={MgL(H2O)(DMF)0.75}∞, CaL = {CaL(DMF)2}∞, SrL = {SrL(H2O)0.5}∞ and BaL = {BaL(H2O)0.5}∞, were synthesized using a flexible benzimidazolone diacetic acid linker (H2L) in which the two carboxylic acid binding sites are connected to a planar core via {-CH2-} spacers that can freely rotate in solution. In a 'curiosity-led' diversion from group 2 metals, the first row transition metal salts Mn2+, Cu2+ and Zn2+ were also reacted with L to yield crystals of MnL = {MnL(DMF)(H2O)3.33}∞, Cu3L2 = {Cu3L2(DMF)2(CHO2)2}∞ and ZnL = {ZnL(DMF)}∞. Crystal structures were obtained for all seven materials. All structures form as two-dimensional sheets and contain six-coordinate centres, with the exception of ZnL, which displays tetrahedrally coordinated metal centres, and Cu3L2 , which contains square planar coordinated metal centres and Cu paddle-wheels. In each structure, the linker adopts one of two distinct conformations, with the carboxylate groups either cis or trans with respect to the planar core. All materials were also characterized by powder X-ray diffraction and thermogravimetric analysis.
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Affiliation(s)
- Corey L. Jones
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Elizabeth A. Marsden
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Adam C. Nevin
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Benson M. Kariuki
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Mohan M. Bhadbhade
- School of Chemistry, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Adam D. Martin
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Timothy L. Easun
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
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