1
|
Luo X, Yang D, He X, Wang S, Zhang D, Xu J, Pao CW, Chen JL, Lee JF, Cong H, Lan Y, Alhumade H, Cossy J, Bai R, Chen YH, Yi H, Lei A. Valve turning towards on-cycle in cobalt-catalyzed Negishi-type cross-coupling. Nat Commun 2023; 14:4638. [PMID: 37532729 PMCID: PMC10397345 DOI: 10.1038/s41467-023-40269-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 07/14/2023] [Indexed: 08/04/2023] Open
Abstract
Ligands and additives are often utilized to stabilize low-valent catalytic metal species experimentally, while their role in suppressing metal deposition has been less studied. Herein, an on-cycle mechanism is reported for CoCl2bpy2 catalyzed Negishi-type cross-coupling. A full catalytic cycle of this kind of reaction was elucidated by multiple spectroscopic studies. The solvent and ligand were found to be essential for the generation of catalytic active Co(I) species, among which acetonitrile and bipyridine ligand are resistant to the disproportionation events of Co(I). Investigations, based on Quick-X-Ray Absorption Fine Structure (Q-XAFS) spectroscopy, Electron Paramagnetic Resonance (EPR), IR allied with DFT calculations, allow comprehensive mechanistic insights that establish the structural information of the catalytic active cobalt species along with the whole catalytic Co(I)/Co(III) cycle. Moreover, the acetonitrile and bipyridine system can be further extended to the acylation, allylation, and benzylation of aryl zinc reagents, which present a broad substrate scope with a catalytic amount of Co salt. Overall, this work provides a basic mechanistic perspective for designing cobalt-catalyzed cross-coupling reactions.
Collapse
Affiliation(s)
- Xu Luo
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Dali Yang
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Xiaoqian He
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030, P.R. China
| | - Shengchun Wang
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Dongchao Zhang
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Jiaxin Xu
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Jeng-Lung Chen
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030, P.R. China
| | - Hesham Alhumade
- K. A. CARE Energy Research and Innovation Center, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
- Department of Chemical and Materials Engineering, Faculty of Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Janine Cossy
- Molecular, Macromolecular Chemistry, and Materials, ESPCI Paris, CNRS, PSL University, 75005, Paris, France.
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030, P.R. China.
| | - Yi-Hung Chen
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China.
| | - Hong Yi
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China.
- Wuhan University Shenzhen Research Institute, 518057, Shenzhen, China.
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P.R. China.
| |
Collapse
|
2
|
Sazelee N, Ali NA, Ismail M, Rather SU, Bamufleh HS, Alhumade H, Taimoor AA, Saeed U. Enhancement of the Desorption Properties of LiAlH 4 by the Addition of LaCoO 3. Materials (Basel) 2023; 16:ma16114056. [PMID: 37297188 DOI: 10.3390/ma16114056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/24/2023] [Accepted: 05/27/2023] [Indexed: 06/12/2023]
Abstract
The high hydrogen storage capacity (10.5 wt.%) and release of hydrogen at a moderate temperature make LiAlH4 an appealing material for hydrogen storage. However, LiAlH4 suffers from slow kinetics and irreversibility. Hence, LaCoO3 was selected as an additive to defeat the slow kinetics problems of LiAlH4. For the irreversibility part, it still required high pressure to absorb hydrogen. Thus, this study focused on the reduction of the onset desorption temperature and the quickening of the desorption kinetics of LiAlH4. Here, we report the different weight percentages of LaCoO3 mixed with LiAlH4 using the ball-milling method. Interestingly, the addition of 10 wt.% of LaCoO3 resulted in a decrease in the desorption temperature to 70 °C for the first stage and 156 °C for the second stage. In addition, at 90 °C, LiAlH4 + 10 wt.% LaCoO3 can desorb 3.37 wt.% of H2 in 80 min, which is 10 times faster than the unsubstituted samples. The activation energies values for this composite are greatly reduced to 71 kJ/mol for the first stages and 95 kJ/mol for the second stages compared to milled LiAlH4 (107 kJ/mol and 120 kJ/mol for the first two stages, respectively). The enhancement of hydrogen desorption kinetics of LiAlH4 is attributed to the in situ formation of AlCo and La or La-containing species in the presence of LaCoO3, which resulted in a reduction of the onset desorption temperature and activation energies of LiAlH4.
Collapse
Affiliation(s)
- Noratiqah Sazelee
- Energy Storage Research Group, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
| | - Nurul Amirah Ali
- Energy Storage Research Group, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
| | - Mohammad Ismail
- Energy Storage Research Group, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
| | - Sami-Ullah Rather
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Hisham S Bamufleh
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Aqeel Ahmad Taimoor
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Usman Saeed
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| |
Collapse
|
3
|
Sazelee N, Md Din MF, Ismail M, Rather SU, Bamufleh HS, Alhumade H, Taimoor AA, Saeed U. Effect of LaCoO 3 Synthesized via Solid-State Method on the Hydrogen Storage Properties of MgH 2. Materials (Basel) 2023; 16:2449. [PMID: 36984329 PMCID: PMC10057918 DOI: 10.3390/ma16062449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/08/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
One of the ideal energy carriers for the future is hydrogen. It has a high energy density and is a source of clean energy. A crucial step in the development of the hydrogen economy is the safety and affordable storage of a large amount of hydrogen. Thus, owing to its large storage capacity, good reversibility, and low cost, Magnesium hydride (MgH2) was taken into consideration. Unfortunately, MgH2 has a high desorption temperature and slow ab/desorption kinetics. Using the ball milling technique, adding cobalt lanthanum oxide (LaCoO3) to MgH2 improves its hydrogen storage performance. The results show that adding 10 wt.% LaCoO3 relatively lowers the starting hydrogen release, compared with pure MgH2 and milled MgH2. On the other hand, faster ab/desorption after the introduction of 10 wt.% LaCoO3 could be observed when compared with milled MgH2 under the same circumstances. Besides this, the apparent activation energy for MgH2-10 wt.% LaCoO3 was greatly reduced when compared with that of milled MgH2. From the X-ray diffraction analysis, it could be shown that in-situ forms of MgO, CoO, and La2O3, produced from the reactions between MgH2 and LaCoO3, play a vital role in enhancing the properties of hydrogen storage of MgH2.
Collapse
Affiliation(s)
- Noratiqah Sazelee
- Energy Storage Research Group, Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu, Kuala Terengganu 21030, Malaysia;
| | - Muhamad Faiz Md Din
- Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, Malaysia;
| | - Mohammad Ismail
- Energy Storage Research Group, Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu, Kuala Terengganu 21030, Malaysia;
| | - Sami-Ullah Rather
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; (S.-U.R.); (H.S.B.); (H.A.); (A.A.T.); (U.S.)
| | - Hisham S. Bamufleh
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; (S.-U.R.); (H.S.B.); (H.A.); (A.A.T.); (U.S.)
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; (S.-U.R.); (H.S.B.); (H.A.); (A.A.T.); (U.S.)
| | - Aqeel Ahmad Taimoor
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; (S.-U.R.); (H.S.B.); (H.A.); (A.A.T.); (U.S.)
| | - Usman Saeed
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; (S.-U.R.); (H.S.B.); (H.A.); (A.A.T.); (U.S.)
| |
Collapse
|
4
|
Rather SU, Islam S, Bamufleh HS, Alhumade H, Ahmad Taimoor A, Saeed U, Adebayo Sulaimon A, Anamul Hoque M, Alalayah WM, Mohd Shariff A. Effects of alcohols and temperature on association, micellar parameters, and energetics of mixture of cetylpyridinium bromide and polyvinyl alcohol. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
|
5
|
Rather SU, Shariff AM, Sulaimon AA, Bamufleh HS, Qasim A, Khan MS, Alhumade H, Saeed U, Alalayah WM. Corrigendum to 'Prediction of carbon-dioxide activity coefficient for solubility in ionic liquids using multi-non-linear regression analysis', Chemosphere, 311, (2023), 1-10, 137102. Chemosphere 2023; 315:137721. [PMID: 36634556 DOI: 10.1016/j.chemosphere.2022.137721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Sami-Ullah Rather
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah, 21589, Saudi Arabia
| | - Azmi M Shariff
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Malaysia; CO2 Research Centre (CO2RES), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia
| | - Aliyu Adebayo Sulaimon
- Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Malaysia; Centre of Research in Ionic Liquids (CORIL), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia.
| | - Hisham S Bamufleh
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah, 21589, Saudi Arabia
| | - Ali Qasim
- Centre of Research in Ionic Liquids (CORIL), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia
| | - Muhammad Saad Khan
- CO2 Research Centre (CO2RES), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah, 21589, Saudi Arabia
| | - Usman Saeed
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah, 21589, Saudi Arabia
| | - Walid M Alalayah
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah, 21589, Saudi Arabia
| |
Collapse
|
6
|
Alhumade H, Rezk H, Louzazni M, Moujdin IA, Al-Shahrani S. Advanced Energy Management Strategy of Photovoltaic/PEMFC/Lithium-Ion Batteries/Supercapacitors Hybrid Renewable Power System Using White Shark Optimizer. Sensors (Basel) 2023; 23:1534. [PMID: 36772570 PMCID: PMC9919960 DOI: 10.3390/s23031534] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/23/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
The slow dynamic response of a proton exchange membrane fuel cell (PEMFC) to high load change during deficit periods must be considered. Therefore, integrating the hybrid system with energy storage devices like battery storage and/or a supercapacitor is necessary. To reduce the consumed hydrogen, an energy management strategy (EMS) based on the white shark optimizer (WSO) for photovoltaic/PEMFC/lithium-ion batteries/supercapacitors microgrid has been developed. The EMSs distribute the load demand among the photovoltaic, PEMFC, lithium-ion batteries, and supercapacitors. The design of EMSs must be such that it minimizes the use of hydrogen while simultaneously ensuring that each energy source performs inside its own parameters. The recommended EMS-based-WSO was evaluated in regard to other EMSs regarding hydrogen fuel consumption and effectiveness. The considered EMSs are state machine control strategy (SMCS), classical external energy maximization strategy (EEMS), and optimized EEMS-based particle swarm optimization (PSO). Thanks to the proposed EEMS-based WSO, hydrogen utilization has been reduced by 34.17%, 29.47%, and 2.1%, respectively, compared with SMCS, EEMS, and PSO. In addition, the efficiency increased by 6.05%, 9.5%, and 0.33%, respectively, compared with SMCS, EEMS, and PSO.
Collapse
Affiliation(s)
- Hesham Alhumade
- Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence in Desalination Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- K. A. CARE Energy Research and Innovation Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hegazy Rezk
- Department of Electrical Engineering, College of Engineering in Wadi Alddawasir, Prince Sattam bin Abdulaziz University, Wadi Alddawasir 11991, Saudi Arabia
- Department of Electrical Engineering, Faculty of Engineering, Minia University, Minia 61519, Egypt
| | - Mohamed Louzazni
- Science Engineer Laboratory for Energy, National School of Applied Sciences, Chouaib Doukkali University of El Jadida, El Jadida 24000, Morocco
| | - Iqbal Ahmed Moujdin
- Center of Excellence in Desalination Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Mechanical Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Saad Al-Shahrani
- Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
7
|
Li Y, Wang H, Wang Z, Alhumade H, Huang Z, Lei A. Electrochemical radical-mediated selective C(sp 3)-S bond activation. Chem Sci 2023; 14:372-378. [PMID: 36687345 PMCID: PMC9811493 DOI: 10.1039/d2sc05507d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
Selective C(sp3)-S bond breaking and transformation remains a particularly important, yet challenging goal in synthetic chemistry. Over the past few decades, transition metal-catalyzed cross-coupling reactions through the cleavage of C(sp3)-S bonds provided a powerful platform for the construction of target molecules. In contrast, the selective activation of widespread C(sp3)-S bonds is rarely studied and remains underdeveloped, even under relatively harsh conditions. Herein, a radical-mediated electrochemical strategy capable of selectively activating C(sp3)-S bonds is disclosed, offering an unprecedented method for the synthesis of valuable disulfides from widespread thioethers. Importantly, compared with conventional transition-metal catalyzed C-S bond breaking protocols, this method features mild, catalyst- and oxidant-free reaction conditions, as well excellent chemoselectivity towards C(sp3)-S bonds. Preliminary mechanistic studies reveal that sulfur radical species are involved in the reaction pathway and play an essential role in controlling the site-selectivity.
Collapse
Affiliation(s)
- Yongli Li
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan UniversityWuhan430072HubeiP. R. China
| | - Huamin Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan UniversityWuhan430072HubeiP. R. China
| | - Zhuning Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan UniversityWuhan430072HubeiP. R. China
| | - Hesham Alhumade
- Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz UniversityJeddah 21589Saudi Arabia,K. A. CARE Energy Research and Innovation Center, King Abdulaziz UniversityJeddah 21589Saudi Arabia
| | - Zhiliang Huang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan UniversityWuhan430072HubeiP. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan UniversityWuhan430072HubeiP. R. China,Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz UniversityJeddah 21589Saudi Arabia
| |
Collapse
|
8
|
Rather SU, Shariff AM, Sulaimon AA, Bamufleh HS, Qasim A, Saad Khan M, Alhumade H, Saeed U, M Alalayah W. Prediction of carbon-dioxide activity coefficient for solubility in ionic liquids using multi-non-linear regression analysis. Chemosphere 2023; 311:137102. [PMID: 36334738 DOI: 10.1016/j.chemosphere.2022.137102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Activity coefficient values offer insight into the intermolecular interactions between the solute and the solvent and the deviation from the ideal behavior. CO2 capture from different industrial processes is a globally pertinent issue and the search for suitable chemicals is required. To address the issue, knowledge of activity coefficient values is crucial for CO2 separation-based process. In this regard, a correlation is developed that predicts the coefficient of CO2 activity in ionic liquids by multi-nonlinear regression analysis. The correlation is developed between the pressure range of 1-50 bar and the temperature range of 298.15-33.15 K for mole fractions of 0.3, 0.5, and 0.7. Outliers' analysis is performed using the boxplot method to determine the suitability of ranges of the selected input parameters. The preceding literature does not predict the activity coefficient in relatively lower to higher temperature and pressure ranges for CO2 solubility in ionic liquids. Initially, the activity coefficient values from COSMO-RS were obtained and compared with the correlation results. The COSMO-RS and the correlation predicted results were subsequently validated with the experimental data. The average absolute error (AAE%) of the predicted correlation values is 19.53% while the root mean square error (RMSE) value is 0.465. The correlation can be used in the future to predict the CO2 activity coefficient values in ionic liquids to facilitate qualitative analyses of their CO2 capture efficiency.
Collapse
Affiliation(s)
- Sami-Ullah Rather
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Azmi M Shariff
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Malaysia; CO(2) Research Centre (CO(2)RES), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia
| | - Aliyu Adebayo Sulaimon
- Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Malaysia; Centre of Research in Ionic Liquids (CORIL), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia.
| | - Hisham S Bamufleh
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Ali Qasim
- Centre of Research in Ionic Liquids (CORIL), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia
| | - Muhammad Saad Khan
- CO(2) Research Centre (CO(2)RES), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Usman Saeed
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Walid M Alalayah
- Department of Chemical and Materials Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| |
Collapse
|
9
|
Gardezi SN, Akhtar MT, Qadir R, Mustaqeem M, Batool S, Siddique AB, Alhumade H, Tahir MH, Saadia M. Biological and Hypoglycemic Effects of a Polyherbal Extract on Alloxanized Diabetic Rats. ACS Omega 2022; 7:47755-47763. [PMID: 36591203 PMCID: PMC9798392 DOI: 10.1021/acsomega.2c05363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
The current study investigates the antioxidant, antidiabetic, hepatoprotective, and nephroprotective potentials of a polyherbal mixture containing the methanolic extracts of seeds from Nigella sativa, Cicer arietinum, Silybum marianum, and Citrullus colocynthis and the rhizome of Zingiber officinale. The polyherbal extract (PHE) showed significant total phenolic contents (187.17 GAE/g), ferric reducing power (28%), and radical-scavenging activity (86.16%). The PHE also showed a substantial hypoglycemic effect in alloxan-induced diabetic rats by reducing the blood glucose level of the PHE-treated rats (-48.64%) and increasing the insulin level (107.5%) as compared with the diabetic control group. Likewise, an increase in high-density lipoprotein (HDL) contents (22.95%) with an associated decrease in low-density lipoprotein (LDL) levels (-43.93%) was also noted. A significant decrease in serum levels of liver marker enzymes, e.g., SGPT (-36%), SGOT (-31%), and serum ALP (-12%), was also observed as compared with the standard drug-treated group. Based on the findings of the study, it may be suggested that PHE helps ameliorate the severity of diabetes as a herbal remedy and might be employed in nutra-pharmaceuticals, replacing synthetic antidiabetic compounds.
Collapse
Affiliation(s)
| | | | - Rahman Qadir
- Institute
of Chemistry, University of Sargodha, Sargodha40100, Pakistan
| | | | - Sajida Batool
- Department
of Zoology, University of Sargodha, Sargodha40100, Pakistan
| | | | - Hesham Alhumade
- K.A.
CARE Energy Research and Innovation Center, King Abdulaziz University, Jeddah21589, Saudi Arabia
- Department
of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah21589, Saudi Arabia
| | - Mudassir Hussain Tahir
- Graduate
School of Energy Science, Kyoto University, Yoshida-Honmachi, Sakyo-Ku, Kyoto606-8501, Japan
| | - Mubshara Saadia
- Department
of Biochemistry, Government College Women
University, Faisalabad38000, Pakistan
| |
Collapse
|
10
|
Qadir R, Anwar F, Naseem K, Tahir MH, Alhumade H. Enzyme-Assisted Extraction of Phenolics from Capparis spinosa Fruit: Modeling and Optimization of the Process by RSM and ANN. ACS Omega 2022; 7:33031-33038. [PMID: 36157770 PMCID: PMC9494429 DOI: 10.1021/acsomega.2c02850] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 07/15/2022] [Indexed: 06/16/2023]
Abstract
The current study intends to appraise the effect of enzyme complexes on the recovery of phenolics from Capparis spinosa fruit extract using the response surface methodology (RSM) and artificial neural networking (ANN). Enzymatic treatment of C. spinosa fruit extract was optimized under a set of conditions (enzyme concentration, pH, temperature, and time) against each enzyme formulation such as Kemzyme Plus Dry, Natuzyme, and Zympex-014. The extract yield observed for Kemzyme Plus Dry (42.00%) was noted to be higher than those for Zympex-014 (39.80%) and Natuzyme (38.50%). Based on the higher results, the values of Kemzyme Plus Dry-based extract were further employed in different parameters of RSM. The F-value (16.03) and p-values (<0.05) implied that the selected model is significant. Similarly, the higher values for the coefficient of determination (R 2) at 0.9740 and adjusted R 2 (adj. R 2) at 0.9132 indicated that the model is significant in relation to given experimental parameters. ANN-predicted values were very close to the experimental values, which demonstrated the applicability of the ANN model. Antioxidant activities also exhibited profound results in terms of total phenolic content values (24.76 mg GAE/g), total flavonoid content values (24.56 mg CE/g), and the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay (IC50) (5.12 mg/mL). Scanning electron microscopy revealed that after enzymatic hydrolysis, the cell walls were broken as compared with nonhydrolyzed materials. Five phenolics, namely, quercetin, m-coumaric acid, sinapic acid, kaempferol, and p-coumaric acid, were identified from C. spinosa extract by gas chromatography-mass spectrometry (GC/MS). The results of this study reveal that the proposed optimization techniques, using Kemzyme Plus Dry among others, had a positive effect on the recovery of phenolic bioactive compounds and thus increased the antioxidant potential of C. spinosa fruit extract.
Collapse
Affiliation(s)
- Rahman Qadir
- Institute
of Chemistry, University of Sargodha, Sargodha 41000, Pakistan
| | - Farooq Anwar
- Institute
of Chemistry, University of Sargodha, Sargodha 41000, Pakistan
| | - Khalida Naseem
- Department
of Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore 54000, Pakistan
| | - Mudassir Hussain Tahir
- Department
of Chemistry, Division of Science and Technology, University of Education, Lahore 54000, Pakistan
| | - Hesham Alhumade
- K.A.CARE
Energy Research and Innovation Center, King
Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department
of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
11
|
Affiliation(s)
- Lijun Lu
- Institute for Advanced Studies, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Feiyu Qiu
- Institute for Advanced Studies, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Heng Zhang
- Institute for Advanced Studies, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P. R. China
- Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
12
|
You S, Ruan M, Lu C, Liu L, Weng Y, Yang G, Wang S, Alhumade H, Lei A, Gao M. Paired electrolysis enabled annulation for the quinolyl-modification of bioactive molecules. Chem Sci 2022; 13:2310-2316. [PMID: 35310496 PMCID: PMC8864700 DOI: 10.1039/d1sc06757e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/26/2022] [Indexed: 12/15/2022] Open
Abstract
A paired electrolysis enabled cascade annulation that enables the efficient synthesis of highly functionalized quinoline-substituted bioactive molecules from readily available starting materials is reported. Using this methodology, two goals, namely, the direct synthesis of quinolines and the introduction of quinoline moieties to bioactive molecules, can be simultaneously achieved in one simple operation. The use of electroreduction for the activation of isatin, together with the further anodic oxidation of KI to catalytically result in a cascade annulation, highlight the unique possibilities associated with electrochemical activation methods. This transformation can tolerate a wide range of functional groups and can also be used as a functionalization tactic in pharmaceutical research as well as other areas. A paired electrolysis enabled cascade annulation that enables the efficient synthesis of highly functionalized quinoline-substituted bioactive molecules from readily available starting materials is reported.![]()
Collapse
Affiliation(s)
- Shiqi You
- College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 P. R. China
| | - Mengyao Ruan
- College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 P. R. China
| | - Cuifen Lu
- College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 P. R. China
| | - Li Liu
- College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 P. R. China
| | - Yue Weng
- College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 P. R. China
| | - Guichun Yang
- College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 P. R. China
| | - Shengchun Wang
- College of Chemistry and Molecular Sciences and the Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 Hubei P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences and the Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 Hubei P. R. China .,Department of Chemical and Materials Engineering, Faculty of Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Meng Gao
- College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 P. R. China
| |
Collapse
|
13
|
Affiliation(s)
- Liwei Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) Wuhan University Wuhan Hubei 430072 China
| | - Dali Yang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) Wuhan University Wuhan Hubei 430072 China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, Center of Research Excellence in Renewable Energy and Power Systems King Abdulaziz University Jdedah 21589 Saudi Arabia
| | - Hong Yi
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) Wuhan University Wuhan Hubei 430072 China
| | - Xiaotian Qi
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) Wuhan University Wuhan Hubei 430072 China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) Wuhan University Wuhan Hubei 430072 China
- King Abdulaziz University Jeddah Saudi Arabia
| |
Collapse
|
14
|
Yuan Y, Liu X, Hu J, Wang P, Wang S, Alhumade H, Lei A. Electrochemical Oxidative N-H/P-H Cross-Coupling with H2 Evolution towards the Synthesis of Tertiary Phosphines. Chem Sci 2022; 13:3002-3008. [PMID: 35382477 PMCID: PMC8905962 DOI: 10.1039/d1sc07248j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/11/2022] [Indexed: 11/21/2022] Open
Abstract
Tertiary phosphines(iii) find widespread use in many aspects of synthetic organic chemistry. Herein, we developed a facile and novel electrochemical oxidative N–H/P–H cross-coupling method, leading to a series of expected tertiary phosphines(iii) under mild conditions with excellent yields. It is worth noting that this electrochemical protocol features very good reaction selectivity, where only a 1 : 1 ratio of amine and phosphine was required in the reaction. Moreover, this electrochemical protocol proved to be practical and scalable. Mechanistic insights suggested that the P radical was involved in this reaction. A facile and novel electrochemical oxidative N–H/P–H cross-coupling method for obtaining tertiary phosphines(iii) was developed.![]()
Collapse
Affiliation(s)
- Yong Yuan
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330022 P. R. China
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
- College of Chemistry and Chemical Engineering, Northwest Normal University Lanzhou Gansu 730070 China
| | - Xue Liu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330022 P. R. China
| | - Jingcheng Hu
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
| | - Pengjie Wang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
| | - Shengchun Wang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330022 P. R. China
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan 430072 P. R. China
- King Abdulaziz University Jeddah 21589 Saudi Arabia
| |
Collapse
|
15
|
Li H, Lu F, Xu J, Hu J, Alhumade H, Lu L, Lei A. Electrochemical oxidative selenocyclization of olefinic amides towards the synthesis of iminoisobenzofurans. Org Chem Front 2022. [DOI: 10.1039/d2qo00406b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We introduced an electrochemical oxidative radical cascade cyclization of olefinic amides and diselenides without a transition-metal catalyst and external oxidant. This selenocyclization reaction provided a facile method to construct C–Se and C–O bonds in one step.
Collapse
Affiliation(s)
- Hao Li
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Fangling Lu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Jie Xu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Jianguo Hu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
- Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Lijun Lu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, P. R. China
- King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
16
|
Wan H, Li D, Xia H, Yang L, Alhumade H, Yi H, Lei A. Synthesis of 1 H-indazoles by an electrochemical radical C sp2-H/N-H cyclization of arylhydrazones. Chem Commun (Camb) 2021; 58:665-668. [PMID: 34918720 DOI: 10.1039/d1cc04656j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of efficient and sustainable C-N bond-forming reactions to N-heterocyclic frameworks has been a long-standing interest in organic synthesis. In this work, we develop an electrochemical radical Csp2-H/N-H cyclization of arylhydrazones to 1H-indazoles. The electrochemical anodic oxidation approach was adopted to synthesize a variety of 1H-indazole derivatives in moderate to good yields. HFIP was not only employed as a solvent or the proton donor, but also can promote the formation of N free radicals. This synthetic methodology is operationally simple, and less expensive electrodes would be suitable for this chemistry.
Collapse
Affiliation(s)
- Hao Wan
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Dongting Li
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Huadan Xia
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Liwen Yang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hong Yi
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, P. R. China.
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China. .,College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, P. R. China. .,King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
17
|
Wang D, Wan Z, Zhang H, Alhumade H, Yi H, Lei A. Electrochemical Reductive Arylation of Nitroarenes with Arylboronic Acids. ChemSusChem 2021; 14:5399-5404. [PMID: 34581006 DOI: 10.1002/cssc.202101924] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/26/2021] [Indexed: 06/13/2023]
Abstract
The synthesis of diarylamine is extremely important in organic chemistry. Herein, a novel electrochemical reductive arylation of nitroarenes with arylboronic acids was developed. A variety of diarylamines were synthesized without the need for transition-metal catalysts. The reaction could be scaled up efficiently in a flow cell and several derivatization reactions were carried out smoothly. Cyclic voltammetry experiments and mechanism studies showed that acetonitrile, formic acid, and triethyl phosphite all played a role in promoting this reductive arylation transformation.
Collapse
Affiliation(s)
- Dan Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, 430062, P. R. China
| | - Zhaohua Wan
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Heng Zhang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jdedah, 21589, Saudi Arabia
- Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jdedah, 21589, Saudi Arabia
| | - Hong Yi
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
- King Abdulaziz University, Jdedah, 21589, Saudi Arabia
| |
Collapse
|
18
|
Liu Y, Shi B, Liu Z, Gao R, Huang C, Alhumade H, Wang S, Qi X, Lei A. Time-Resolved EPR Revealed the Formation, Structure, and Reactivity of N -Centered Radicals in an Electrochemical C(sp 3)-H Arylation Reaction. J Am Chem Soc 2021; 143:20863-20872. [PMID: 34851107 DOI: 10.1021/jacs.1c09341] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Electrochemical synthesis has been rapidly developed over the past few years, while a vast majority of the reactions proceed through a radical pathway. Understanding the properties of radical intermediates is crucial in the mechanistic study of electrochemical transformations and will be beneficial for developing new reactions. Nevertheless, it is rather difficult to determine the "live" radical intermediates due to their high reactivity. In this work, the formation and structure of sulfonamide N-centered radicals have been researched directly by using the time-resolved electron paramagnetic resonance (EPR) technique under electrochemical conditions. Supported by the EPR results, the reactivity of N-centered radicals as a mediator in the hydrogen atom transfer (HAT) approach has been discussed. Subsequently, these mechanistic study results have been successfully utilized in the discovery of an unactivated C(sp3)-H arylation reaction. The kinetic experiments have revealed the rate-determined step is the anodic oxidation of sulfonamides.
Collapse
Affiliation(s)
- Yichang Liu
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Biyin Shi
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Zhao Liu
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Renfei Gao
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Cunlong Huang
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Center of Research Excellence in Renewable Energy and Power Ststems, King Abdulzaziz University, Jeddah 21589, Saudi Arabia
| | - Shengchun Wang
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Xiaotian Qi
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China.,Department of Chemical and Materials Engineering, Abdulzaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
19
|
Tahir M, Irfan RM, Hussain MB, Alhumade H, Al-Turki Y, Cheng X, Karim A, Ibrahim M, Rathore HA. Catalytic Fast Pyrolysis of Soybean Straw Biomass for Glycolaldehyde-Rich Bio-oil Production and Subsequent Extraction. ACS Omega 2021; 6:33694-33700. [PMID: 34926917 PMCID: PMC8675037 DOI: 10.1021/acsomega.1c04717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
In this study, soybean straw (SS) as a promising source of glycolaldehyde-rich bio-oil production and extraction was investigated. Proximate and ultimate analysis of SS was performed to examine the feasibility and suitability of SS for thermochemical conversion design. The effect of the co-catalyst (CaCl2 + ash) on glycolaldehyde concentration (%) was examined. Thermogravimetric-Fourier-transform infrared (TG-FTIR) analysis was applied to optimize the pyrolysis temperature and biomass-to-catalyst ratio for glycolaldehyde-rich bio-oil production. By TG-FTIR analysis, the highest glycolaldehyde concentration of 8.57% was obtained at 500 °C without the catalyst, while 12.76 and 13.56% were obtained with the catalyst at 500 °C for a 1:6 ratio of SS-to-CaCl2 and a 1:4 ratio of SS-to-ash, respectively. Meanwhile, the highest glycolaldehyde concentrations (%) determined by gas chromatography-mass spectrometry (GC-MS) analysis for bio-oils produced at 500 °C (without the catalyst), a 1:6 ratio of SS-to-CaCl2, and a 1:4 ratio of SS-to-ash were found to be 11.3, 17.1, and 16.8%, respectively. These outcomes were fully consistent with the TG-FTIR results. Moreover, the effect of temperature on product distribution was investigated, and the highest bio-oil yield was achieved at 500 °C as 56.1%. This research work aims to develop an environment-friendly extraction technique involving aqueous-based imitation for glycolaldehyde extraction with 23.6% yield. Meanwhile, proton nuclear magnetic resonance (1H NMR) analysis was used to confirm the purity of the extracted glycolaldehyde, which was found as 91%.
Collapse
Affiliation(s)
- Mudassir
Hussain Tahir
- School
of Energy and Power Engineering, Shandong
University, Jinan 250061, China
- National
Engineering Laboratory for Reducing Emissions from Coal Combustion, Jinan 250061, China
| | - Rana Muhammad Irfan
- College
of Energy, Soochow University, Suzhou, 50 Huxi East Ring Road, Gusu District, Suzhou City, Jiangsu 215000, China
| | - Muhammad Bilal Hussain
- School
of Energy and Power Engineering, Shandong
University, Jinan 250061, China
- National
Engineering Laboratory for Reducing Emissions from Coal Combustion, Jinan 250061, China
| | - Hesham Alhumade
- Department
of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center
of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Yusuf Al-Turki
- Department
of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Xingxing Cheng
- School
of Energy and Power Engineering, Shandong
University, Jinan 250061, China
- National
Engineering Laboratory for Reducing Emissions from Coal Combustion, Jinan 250061, China
| | - Abdul Karim
- Department
of Chemistry, University of Sargodha, Sargodha, Punjab 40100, Pakistan
| | - Muhammad Ibrahim
- Department
of Environmental Sciences & Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Hassaan Anwer Rathore
- Department
of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, P.O.
Box 2713 Doha, Qatar
- Biomedical
and Pharmaceutical Research Unit (BPRU), QU Health, Qatar University, P.O. Box 2713 Doha, Qatar
| |
Collapse
|
20
|
Liang K, Lu L, Liu X, Yang D, Wang S, Gao Y, Alhumade H, Yi H, Lei A. Electrochemical Cobalt-catalyzed Cyclotrimerization of Alkynes to 1,2,4-Substituted Arenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kailun Liang
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
| | - Lijun Lu
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
| | - Xing Liu
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
| | - Dali Yang
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
| | - Shengchun Wang
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
| | - Yiming Gao
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Center of Research Excellence in Renewable Energy and Power Ststems, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hong Yi
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
- Department of Chemical and Materials Engineering, Abdulaziz University. Jeddah 21589, Saudi Arabia
| |
Collapse
|
21
|
Cai G, He L, Zhou M, Alhumade H, Hu D. Learning Smooth Representation for Unsupervised Domain Adaptation. IEEE Trans Neural Netw Learn Syst 2021; PP:1-15. [PMID: 34788221 DOI: 10.1109/tnnls.2021.3119889] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Typical adversarial-training-based unsupervised domain adaptation (UDA) methods are vulnerable when the source and target datasets are highly complex or exhibit a large discrepancy between their data distributions. Recently, several Lipschitz-constraint-based methods have been explored. The satisfaction of Lipschitz continuity guarantees a remarkable performance on a target domain. However, they lack a mathematical analysis of why a Lipschitz constraint is beneficial to UDA and usually perform poorly on large-scale datasets. In this article, we take the principle of utilizing a Lipschitz constraint further by discussing how it affects the error bound of UDA. A connection between them is built, and an illustration of how Lipschitzness reduces the error bound is presented. A local smooth discrepancy is defined to measure the Lipschitzness of a target distribution in a pointwise way. When constructing a deep end-to-end model, to ensure the effectiveness and stability of UDA, three critical factors are considered in our proposed optimization strategy, i.e., the sample amount of a target domain, dimension, and batchsize of samples. Experimental results demonstrate that our model performs well on several standard benchmarks. Our ablation study shows that the sample amount of a target domain, the dimension, and batchsize of samples, indeed, greatly impact Lipschitz-constraint-based methods' ability to handle large-scale datasets. Code is available at https://github.com/CuthbertCai/SRDA.
Collapse
|
22
|
Guan Z, Zhu S, Yang Y, Liu Y, Wang S, Bu F, Cong H, Alhumade H, Zhang H, Lei A. Electrochemically selective double C(sp 2)-X (X = S/Se, N) bond formation of isocyanides. Chem Sci 2021; 12:14121-14125. [PMID: 34760196 PMCID: PMC8565391 DOI: 10.1039/d1sc04475c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/01/2021] [Indexed: 11/21/2022] Open
Abstract
The construction of C(sp2)-X (X = B, N, O, Si, P, S, Se, etc.) bonds has drawn growing attention since heteroatomic compounds play a prominent role from biological to pharmaceutical sciences. The current study demonstrates the C(sp2)-S/Se and C(sp2)-N bond formation of one carbon of isocyanides with thiophenols or disulfides or diselenides and azazoles simultaneously. The reported findings could provide access to novel multiple isothioureas, especially hitherto rarely reported selenoureas. The protocol showed good atom-economy and step-economy with only hydrogen evolution and theoretical calculations accounted for the stereoselectivity of the products. Importantly, the electrochemical reaction could exclusively occur at the isocyano part regardless of the presence of susceptible radical acceptors, such as a broad range of arenes and alkynyl moieties, even alkenyl moieties.
Collapse
Affiliation(s)
- Zhipeng Guan
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Shuxiang Zhu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Yankai Yang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Yanlong Liu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Siyuan Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Faxiang Bu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Hengjiang Cong
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University Jeddah Saudi Arabia.,Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University Jeddah Saudi Arabia
| | - Heng Zhang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University Wuhan Hubei 430072 People's Republic of China .,National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330022 Jiangxi P. R. China.,King Abdulaziz University Jeddah Saudi Arabia
| |
Collapse
|
23
|
Abstract
A novel electrochemical radical selenylation of alkenes and activated arenes without external oxidants is reported. The diselenide was fully transformed into Se-centered radicals through electrochemical Se-Se bond activation. Three-component radical carbonselenation was successfully realized using styrenes to trap the RSe radical. Besides, the direct coupling of RSe radicals with activated arenes was further developed. Using this atom-economic protocol, diversity of unsymmetric aryl-aryl, aryl-alkyl, and alkyl-alkyl selenoethers was obtained regioselectively, which has potential application in biological chemistry.
Collapse
Affiliation(s)
- Li Sun
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China
| | - Liwei Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia.,Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jdedah 21589, Saudi Arabia
| | - Hong Yi
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Hu Cai
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China
| | - Aiwen Lei
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China.,Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, Hubei 430072, People's Republic of China.,King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
24
|
Sadeghi MS, Dogonchi A, Ghodrat M, Chamkha AJ, Alhumade H, Karimi N. Natural convection of CuO-water nanofluid in a conventional oil/water separator cavity: Application to combined-cycle power plants. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.03.031] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
25
|
Um JG, Jun YS, Alhumade H, Krithivasan H, Lui G, Yu A. Investigation of the size effect of graphene nano-platelets (GnPs) on the anti-corrosion performance of polyurethane/GnP composites. RSC Adv 2018; 8:17091-17100. [PMID: 35539231 PMCID: PMC9080461 DOI: 10.1039/c8ra02087f] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 04/20/2018] [Indexed: 11/26/2022] Open
Abstract
In this article, polyurethane/graphene nano-platelet (PU/GnP) composites were fabricated via planetary centrifugal mixer (PCM) and cast on polyethylene terephthalate (PET) and copper substrates. Four different grades of GnP are used to investigate the effect of GnP size on the anti-corrosion performance of the composites. Tafel, Nyquist, and Bode plots are used to quantify and compare the anti-corrosion performance of the composites, and these plots are obtained by electrochemical analysis. In addition to the anti-corrosion performance, mechanical properties and morphologies of the composites are analyzed. Various parameters indicating the anti-corrosion performance illustrate that smaller size of GnP in the composites shows higher anti-corrosion performance on copper substrate. The results show that the smaller size of GnP is not only uniformly dispersed within PU, but also offers a high surface area which helps construct an efficient filler pathway that suppresses the diffusion of a corrosive agent into the polymer matrix. Nevertheless, mechanical properties of the composites are partially improved. Essentially, this study demonstrates that the size of GnP plays a central role in determining the anti-corrosion performance of PU/GnP composites. In this article, polyurethane/graphene nano-platelet (PU/GnP) composites were fabricated via planetary centrifugal mixer (PCM) and cast on polyethylene terephthalate (PET) and copper substrates.![]()
Collapse
Affiliation(s)
- Jun Geun Um
- Department of Chemical Engineering
- University of Waterloo
- Waterloo
- Canada N2L 3G1
| | - Yun-Seok Jun
- Department of Chemical Engineering
- University of Waterloo
- Waterloo
- Canada N2L 3G1
| | - Hesham Alhumade
- Department of Chemical Engineering
- University of Waterloo
- Waterloo
- Canada N2L 3G1
| | | | - Gregory Lui
- Department of Chemical Engineering
- University of Waterloo
- Waterloo
- Canada N2L 3G1
| | - Aiping Yu
- Department of Chemical Engineering
- University of Waterloo
- Waterloo
- Canada N2L 3G1
| |
Collapse
|
26
|
Alhumade H, Abdala A, Yu A, Elkamel A, Simon L. Corrosion inhibition of copper in sodium chloride solution using polyetherimide/graphene composites. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22439] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hesham Alhumade
- Department of Chemical Engineering; University of Waterloo; Waterloo ON, N2L 3G1 Canada
| | - Ahmed Abdala
- Department of Chemical Engineering; The Petroleum Institute; Abu Dhabi United Arab Emirates
| | - Aiping Yu
- Department of Chemical Engineering; University of Waterloo; Waterloo ON, N2L 3G1 Canada
| | - Ali Elkamel
- Department of Chemical Engineering; University of Waterloo; Waterloo ON, N2L 3G1 Canada
| | - Leonardo Simon
- Department of Chemical Engineering; University of Waterloo; Waterloo ON, N2L 3G1 Canada
| |
Collapse
|
27
|
Alhumade H, Yu A, Elkamel A, Simon L, Abdala A. Enhanced protective properties and UV stability of epoxy/graphene nanocomposite coating on stainless steel. EXPRESS POLYM LETT 2016. [DOI: 10.3144/expresspolymlett.2016.96] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|