1
|
Elayadi H, Lazrek HB. CuSO4/KI As Catalyst for the Synthesis of 1,4-Disubstituted-1,2,3-Triazolo-Nucleosides. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2016; 34:433-41. [PMID: 25965332 DOI: 10.1080/15257770.2015.1014047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A simple and inexpensive procedure has been developed for the selective formation of 1,4-disubstituted-1,2,3-triazolo-nucleosides starting from organic azides and terminal alkynes, mediated by in situ generated copper(I) catalyst from readily available CuSO4 and KI.
Collapse
Affiliation(s)
- Hanane Elayadi
- a Laboratory of Biomolecular and Medicinal Chemistry, Faculty of Science Semlalia , Cadi Ayyad University , Marrakech , Morocco
| | | |
Collapse
|
2
|
Batool T, Rasool N, Gull Y, Noreen M, Nasim FUH, Yaqoob A, Zubair M, Rana UA, Khan SUD, Zia-Ul-Haq M, Jaafar HZE. A convenient method for the synthesis of (prop-2-ynyloxy)benzene derivatives via reaction with propargyl bromide, their optimization, scope and biological evaluation. PLoS One 2014; 9:e115457. [PMID: 25545159 PMCID: PMC4278708 DOI: 10.1371/journal.pone.0115457] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 11/24/2014] [Indexed: 11/30/2022] Open
Abstract
A highly convenient method has been developed for the synthesis of (prop-2-ynyloxy) benzene and its derivatives. Differently substituted phenol and aniline derivatives were allowed to react with propargyl bromide in the presence of K2CO3 base and acetone as solvent. The compounds were synthesized in good yields (53–85%). Low cost, high yields and easy availability of compounds helped in the synthesis. Electron withdrawing groups favor the formation of stable phenoxide ion thus in turn favors the formation of product while electron donating groups do not favor the reaction. Phenol derivatives gave good yields as compared to that of aniline. As aprotic polar solvents favor SN2 type reactions so acetone provided best solvation for the reactions. K2CO3 was proved to be good for the synthesis. Antibacterial, Antiurease and NO scavenging activity of synthesized compounds were also examined. 4-bromo-2-chloro-1-(prop-2-ynyloxy)benzene 2a was found most active compound against urease enzyme with a percentage inhibition of 82.00±0.09 at 100 µg/mL with IC50 value of 60.2. 2-bromo-4-methyl-1-(prop-2-ynyloxy)benzene 2d was found potent antibacterial against Bacillus subtillus showing excellent inhibitory action with percentage inhibition of 55.67±0.26 at 100 µg/ml wih IC50 value of 79.9. Based on results, it can be concluded that some of the synthesized compounds may have potential antiurease and antibacterial effects against several harmful substances.
Collapse
Affiliation(s)
- Tannaza Batool
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Nasir Rasool
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
- * E-mail: (NR); (HJ)
| | - Yasmeen Gull
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Mnaza Noreen
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | | | - Asma Yaqoob
- Department of Chemistry, Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Zubair
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Usman Ali Rana
- Deanship of scientific research, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Salah Ud-Din Khan
- Deanship of scientific research, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | | | - Hawa Z. E. Jaafar
- Department of Crop Science, Faculty of Agriculture, 43400 UPM Serdang, Selangor, Malaysia
- * E-mail: (NR); (HJ)
| |
Collapse
|