|
1
|
Fahim AM, Farag AM, Shaaban MR, Ragab EA. Synthesis and DFT study of novel pyrazole, thiophene, 1,3-thiazole and 1,3,4-thiadiazole derivatives. ACTA ACUST UNITED AC 2018. [DOI: 10.5155/eurjchem.9.1.30-38.1675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Regioselective facile synthesis of innovative heterocycles from the reaction of 2-cyano-N-cyclohexylacetamide (3) with hydrazonoyl chloride (4) in basic condition afforded amino pyrazole derivative 6. The behavior of acetamide 3 with phenylisothiocyanate in DMF/KOH surveyed by addition of the α-halo ketones to yeild the corresponding thiophene derivative 13a, 13b, 16, 18 and 1,3-thiazoles 21. Reaction of intermediate potassium salt 9 with hydrazonoyl chloride 22a-e furnished the corresponding 1,2,4-thiadiazoles 24a-e. Density functional theory (DFT) calculations at the B3LYP and HF techniques combined with 6-31G(d) basis set to investigate the equilibrium geometry of the innovative compound pyrazoles 6 and the stability affording of HOMO/LUMO molecular orbitals.
Collapse
Affiliation(s)
- Asmaa Mahmoud Fahim
- Department of Green Chemistry, National Research Center, Dokki, P.O. Box. 12622, Cairo, Egypt
| | - Ahmad Mahmoud Farag
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Mohamed Rabie Shaaban
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah Almukkarramah, 21955, Kingdom of Saudi Arabia
| | - Eman Ali Ragab
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| |
Collapse
|
|
2
|
DAWOOD KM, RAGAB EA, ALI KA. Synthetic access to some new benzothiazole-based 1,3,4-thiadiazole and 1,3-thiazole derivatives. Turk J Chem 2016. [DOI: 10.3906/kim-1503-75] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
|
3
|
Hegazi B, Abdel-Gawad H, Mohamed HA, Badria FA, Farag AM. Synthesis of New Indeno[1,2-c]pyrazole-Based Heterocycles and Evaluation of Their Protective Effect against DNA Damage Induced by Bleomycin-Iron. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1566] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bahira Hegazi
- Department of Applied Organic Chemistry; National Research Centre; Dokki; Giza; 12622; Egypt
| | - Hassan Abdel-Gawad
- Department of Applied Organic Chemistry; National Research Centre; Dokki; Giza; 12622; Egypt
| | - Hanan A. Mohamed
- Department of Applied Organic Chemistry; National Research Centre; Dokki; Giza; 12622; Egypt
| | - Farid A. Badria
- Department of Pharmacognosy, Faculty of Pharmacy; Mansoura University; Mansoura; 35516; Egypt
| | - Ahmad M. Farag
- Department of Chemistry, Faculty of Science; Cairo University; Giza; 12613; Egypt
| |
Collapse
|
|
4
|
Dawood KM, Mohamed AA, Alsenoussi MA, Ibrahim IH. Synthesis and quantum calculations of 1,3-thiazoles and 1,3,4-thiadiazole derivatives via pyridinylthioureas. J Sulphur Chem 2012. [DOI: 10.1080/17415993.2012.744409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Kamal M. Dawood
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , 12613 , Egypt
| | - Adel A. Mohamed
- b Department of Chemistry, Faculty of Science , Helwan University , Helwan , Egypt
| | | | - Ibrahim H. Ibrahim
- c Department of Chemistry, Faculty of Science , Sebha University , Sebha , Libya
| |
Collapse
|