1
|
Vaz WF, Michelini LJ, Oliveira GAR, Lião LM, Perez CN, Oliver AG, Napolitano HB. Structural comparison of five new halogenated dihydroquinoline-4(1 H)-ones. J Mol Struct 2020; 1219:128559. [PMID: 32536721 PMCID: PMC7264041 DOI: 10.1016/j.molstruc.2020.128559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/16/2020] [Accepted: 05/28/2020] [Indexed: 11/28/2022]
Abstract
Compounds with dihydroquinoline-4(1H)-one nuclei have been reported in the literature for being important in the development of medicines due to their broad spectrum of activities. In this way, the structural knowledge of this class becomes relevant for obtaining new materials with desired biological properties. This study presents the structural elucidation of five halogenated dihydroquinolines, as well as the discussion about the effect on the molecular conformation of the type and position of halogen atom on aromatic rings. Compounds I and IV differ in halogen substitution on 2-phenyl ring, while compounds III and V differ in halogen substitution on the benzylidene ring. Moreover, compound II has a para-substituted 2-phenyl ring in their molecular structure. The crystal packing of all five molecules is mainly ruled by C–H⋯O and C–H···halogen interactions that form dimers and chains. The shift in position and the kind of the halogen in ring C shows a starring role in the conformation of the studied compounds, and the packaging of these compounds is more susceptible to variations when the halogen position changes. Five dihydroquinoline-4(1H)-ones have been synthesized by varying the halogenated substituents. Different substituents lead to distinct number of molecules at asymmetric unit. The Molecular packing is stabilized by C–H⋯O and C–H···Halogen hydrogen bonds. The change in position and the halogen atom attached in ring C play a significant role in the conformation.
Collapse
Affiliation(s)
- Wesley F Vaz
- Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, Anápolis, GO, 75001-970, Brazil.,Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso, Lucas do Rio Verde, MT, 78455-000, Brazil
| | - Lidiane J Michelini
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil
| | - Gerlon A R Oliveira
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil
| | - Luciano M Lião
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil
| | - Caridad N Perez
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil
| | - Allen G Oliver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Hamilton B Napolitano
- Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, Anápolis, GO, 75001-970, Brazil.,Laboratório de Novos Materiais, Centro Universitário de Anápolis, Anápolis, GO, 75083-515, Brazil
| |
Collapse
|
2
|
Devi V, Singh G, Monga V. Recent advances in the synthetic chemistry of 1,5
‐benzothiazepines
: A minireview. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Varsha Devi
- Department of Pharmaceutical ChemistryISF College of Pharmacy Moga Punjab India
| | - Gurpreet Singh
- Department of Pharmaceutical ChemistryISF College of Pharmacy Moga Punjab India
| | - Vikramdeep Monga
- Department of Pharmaceutical ChemistryISF College of Pharmacy Moga Punjab India
| |
Collapse
|
3
|
Moustafa H, Elshakre ME, Elramly S. Electronic structure and nonlinear optical properties (NLO) of 2,4-di-aryl-1,5-benzothiazepine derivatives using DFT approach. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.01.070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|