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Qiu YF, Lu B, Yan YY, Luo WY, Wang J, Hu X. Efficient synthesis of 5-bromo-2,3-dimethoxy-6-methyl-1,4-benzoquinone: key intermediate for preparing Coenzyme Q. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00826-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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2
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Qiu YF, Yan YY, Lu B, Tang L, Zhai YL, Chen KX, Wang J. A Concise Synthesis of Coenzyme Q0. ORG PREP PROCED INT 2019. [DOI: 10.1080/00304948.2019.1673616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Yong-Fu Qiu
- School of Pharmacy, Yancheng Teachers University, Hope Avenue South Road No. 2, Yancheng, 224007, Jiangsu Province, P. R. China
| | - Yi-Yu Yan
- School of Pharmacy, Yancheng Teachers University, Hope Avenue South Road No. 2, Yancheng, 224007, Jiangsu Province, P. R. China
| | - Bin Lu
- School of Pharmacy, Yancheng Teachers University, Hope Avenue South Road No. 2, Yancheng, 224007, Jiangsu Province, P. R. China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing, 211816, Jiangsu Province, P. R. China
| | - Lei Tang
- School of Pharmacy, Yancheng Teachers University, Hope Avenue South Road No. 2, Yancheng, 224007, Jiangsu Province, P. R. China
| | - Yu-Lin Zhai
- School of Pharmacy, Yancheng Teachers University, Hope Avenue South Road No. 2, Yancheng, 224007, Jiangsu Province, P. R. China
| | - Ke-Xin Chen
- School of Pharmacy, Yancheng Teachers University, Hope Avenue South Road No. 2, Yancheng, 224007, Jiangsu Province, P. R. China
| | - Jin Wang
- School of Pharmacy, Yancheng Teachers University, Hope Avenue South Road No. 2, Yancheng, 224007, Jiangsu Province, P. R. China
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Kaifang Avenue No. 50, Yancheng, 224002, Jiangsu Province, P. R. China
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3
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Lu B, Qiu YF, Qi S, Wang J. A convenient two-step synthesis of Coenzyme Q1. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819876524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A convenient method for the preparation of Coenzyme Q1 from cheap and readily available 3,4,5-trimethoxytoluene is developed. Coenzyme Q1 is synthesized in a moderate yield by a two-step procedure involving the key reaction of an allyl bromide with Coenzyme Q0 through a redox chain reaction. The reaction is efficient and can be used for the synthesis of other Coenzyme Q compounds.
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Affiliation(s)
- Bin Lu
- School of Pharmacy, Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, P.R. China
| | - Yong-Fu Qiu
- School of Pharmacy, Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, P.R. China
| | - Shi Qi
- School of Pharmacy, Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, P.R. China
| | - Jin Wang
- School of Pharmacy, Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, P.R. China
- Department of Chemistry, Yale University, New Haven, CT, USA
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4
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Qiu YF, Lu B, Yan YY, Luo WY, Gao ZQ, Wang J. A convenient synthesis of 1,4-benzoquinones. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819841806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of 1,4-benzoquinones was prepared in a high yield by a two-step reaction starting from 2,3,4,5-tetramethoxytoluene by a Blanc reaction and subsequent oxidation.
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Affiliation(s)
- Yong-Fu Qiu
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Bin Lu
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Yi-Yu Yan
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Wan-Yue Luo
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Zhen-Qiu Gao
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
| | - Jin Wang
- School of Pharmacy, Yancheng Teachers University, Yancheng, P.R. China
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng, P.R. China
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5
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Practical synthesis of 2-(4-benzyl-piperazin-1-ylmethyl)-5, 6-dimethoxy-3-methyl-[1, 4]benzoquinone hydrochloride. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2605-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Hu X, Chen H, Wu WJ, Wang WL, Wang J. A convenient synthesis of 1-aralkyl-4-benzylpiperazine derivatives. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14683176211054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient two-step route was developed for the synthesis of 1-aralkyl-4-benzylpiperazine derivatives by a Blanc reaction and alkylation. The key intermediate, N-benzylpiperazine, was prepared in an excellent yield by direct benzylation of commercially available piperazine under metal-free conditions.
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Affiliation(s)
- Xiao Hu
- Library of Yancheng Teachers University, Yancheng 224007, Jiangsu Province, P.R. China
| | - Hui Chen
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, Jiangsu Province, P.R. China
| | - Wei-Jun Wu
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, Jiangsu Province, P.R. China
| | - Wen-Ling Wang
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, Jiangsu Province, P.R. China
| | - Jin Wang
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, Jiangsu Province, P.R. China
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7
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Wang J, Xia F, Jin WB, Guan JY, Zhao H. Efficient synthesis and antioxidant activities of N-heterocyclyl substituted Coenzyme Q analogues. Bioorg Chem 2016; 68:214-8. [PMID: 27561631 DOI: 10.1016/j.bioorg.2016.08.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 08/07/2016] [Accepted: 08/17/2016] [Indexed: 02/06/2023]
Abstract
A new strategy for the efficient synthesis of C-5 heterocyclyl substituted Coenzyme Q analogues was developed by N-alkylation of bromomethylated quinone 11 with a series of amines 12 under metal-free conditions. In vitro antioxidant activities of these Coenzyme Q analogues were evaluated and compared with commercial antioxidant Coenzyme Q10 by employing DPPH assay. All these N-heterocyclyl substituted Coenzyme Q analogues are found to be exhibiting good antioxidant properties and may be used as potent antioxidants for combating oxidative stress.
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Affiliation(s)
- Jin Wang
- School of Pharmacy, Yancheng Teachers University, Yancheng 224051, Jiangsu Province, PR China.
| | - Fei Xia
- School of Pharmacy, Yancheng Teachers University, Yancheng 224051, Jiangsu Province, PR China
| | - Wen-Bin Jin
- School of Pharmacy, Yancheng Teachers University, Yancheng 224051, Jiangsu Province, PR China
| | - Jin-Yan Guan
- School of Pharmacy, Yancheng Teachers University, Yancheng 224051, Jiangsu Province, PR China
| | - Hang Zhao
- School of Pharmacy, Yancheng Teachers University, Yancheng 224051, Jiangsu Province, PR China
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Cui W, Zhang J, Wang Q, Gao K, Zhang W, Yang J. A novel Synthesis of Naringenin and Related Flavanones. JOURNAL OF CHEMICAL RESEARCH 2014. [DOI: 10.3184/174751914x14145820775908] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Efficient methods are reported for the preparation of naringenin (4′,5,7-trihydroxyflavanone) which could be easily scaled-up. They have been applied to three other flavanones (6-hydroxyflavanone, 6,4′-dihydroxyflavanone, 6,3′,4′-trihydroxyflavanone) suitably.
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Affiliation(s)
- Wei Cui
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Ji Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Qian Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Kai Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Wei Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
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Wang J, Li S, Yang T, Yang J. Single-step synthesis of idebenone from Coenzyme Q0 via free-radical alkylation under silver catalysis. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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10
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Wang J, Li S, Yang T, Yang J. Synthesis and antioxidant activities of Coenzyme Q analogues. Eur J Med Chem 2014; 86:710-3. [PMID: 25232967 DOI: 10.1016/j.ejmech.2014.09.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 09/09/2014] [Accepted: 09/11/2014] [Indexed: 12/31/2022]
Abstract
A series of 2,3-dimethoxy-5-methyl-1,4-benzoquinones (Coenzyme Q) substituted at the C-6 position with various groups were designed and synthesized based on the Coenzyme Q10 as potent antioxidant. In vitro antioxidant activities of these compounds were evaluated and compared with commercial antioxidant Coenzyme Q10 employing DPPH assay. All these synthesized Coenzyme Q analogues are found to exhibit good antioxidant activities. Of which Compound 8b bearing a N-benzoylpiperazine group at the C-6 position showed more potent inhibition of DPPH radical than Coenzyme Q10. All these results suggested the applicability of the Coenzyme Q analogues as potent antioxidants for combating oxidative stress.
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Affiliation(s)
- Jin Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650224, PR China; Université de Toulouse, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France.
| | - Shuo Li
- The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, PR China
| | - Tao Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650224, PR China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650224, PR China.
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11
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Wang J, Li S, Hu X, Yang J. A Convenient Synthesis ofN-Benzylpiperazine, 1-Aralkyl-4-benzylpiperazines and an Isostere of Idebenone. ORG PREP PROCED INT 2014. [DOI: 10.1080/00304948.2014.944409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Efficient synthesis of 2,3,4,5-tetramethoxy-6-methylbenzoic acid. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1748-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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13
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Fan L, Chen HY, Gao XQ, Gao XJ. Practical synthesis of 2,3-Dimethoxy-6-Methyl-1,4-Benzoquinone-5-Carboxylic Acid. JOURNAL OF CHEMICAL RESEARCH 2014. [DOI: 10.3184/174751914x14024185967888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Lei Fan
- Department of Pharmacy, Children's Hospital of Zhengzhou City, Zhengzhou, 450053, P.R. China
| | - Hai-Yan Chen
- Department of Pharmacy, Children's Hospital of Zhengzhou City, Zhengzhou, 450053, P.R. China
| | - Xiao-Qiang Gao
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, 450001, P.R. China
| | - Xiao-Juan Gao
- Departments of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, No.40, Daxue Road, Zhengzhou, 450052, P.R. China
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Abstract
Luteolin is a naturally-occurring polyphenolic flavonoid compound which has received considerable attention because of its wide range of biological and pharmacological properties. Efficient methods are reported for preparing luteolin, based on the acylation of 1,3,5-trimethoxybenzene and condensation with 3,4-dimethoxybenzaldehyde or the reaction of 3,4-dimethoxycinnamic acid with 1,3,5-trimethoxybenzene. The first of these is the better method.
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Affiliation(s)
- Ji Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Man Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Wei Cui
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P.R. China
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Wang J, Zhou RG, Wu T, Yang T, Qin QX, Li I, Yang B, Yang J. Total Synthesis of Apigenin. JOURNAL OF CHEMICAL RESEARCH 2012. [DOI: 10.3184/174751912x13285269293913] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient method for the synthesis of apigenin (4’,5,7-trihydroxyflavone, a traditional medicine) from phloroglucinol and anisaldehyde has been developed. This transformation features a green method for hydroxyl protection as methyl ethers and a different way for cyclisation using iodine in DMSO. The overall yield of 40% is satisfactory.
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Affiliation(s)
- Jin Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming, 650500, Yunnan Province, P. R. China
| | - Rong-Guang Zhou
- Institute for Drug Research and Development of Kunming Pharmaceutical Corporation, NO.141 Chunyu Road, Wuhua Zone, Kunming, 650100, Yunnan Province, P. R. China
| | - Ting Wu
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming, 650500, Yunnan Province, P. R. China
| | - Tao Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming, 650500, Yunnan Province, P. R. China
| | - Qi-Xue Qin
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming, 650500, Yunnan Province, P. R. China
| | - Ii Li
- Department of Obstetrics and Gynecology, GuangDong Women and Children Hospital, NO.13 Guangyuan West Road, Guangzhou, 510010, GuangDong Province, P. R. China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming, 650500, Yunnan Province, P. R. China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming, 650500, Yunnan Province, P. R. China
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Wang J, Yang J, Zhou RG, Yang B, Wu YS. Alternative Synthesis of 2-(4-Benzoyl-Piperazin-1-Ylmethyl)-5, 6-Dimethoxy-3-Methyl-[1, 4]Benzoquinone. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x13099411630089] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The title compound was prepared by a reaction sequence starting from 2, 3, 4, 5-tetramethoxytoluene via Blanc chloromethylation reaction, oxidation and alkylation. The described method provides a good yield of the heterocyclic-Coenzyme Q analogue and is suitable for the synthesis of other analogues.
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Affiliation(s)
- Jin Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, NO.296 Bailong Temple, Panlong Zone, Kunming 650224, Yunnan Province, P. R. China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming 650500, Yunnan Province, P. R. China
| | - Rong-Guang Zhou
- Institute for Drug Research and Development of Kunming Pharmaceutical Corporation, NO.141 Chunyu Road, Wuhua Zone, Kunming 650100, Yunnan Province, P. R. China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, NO.296 Bailong Temple, Panlong Zone, Kunming 650224, Yunnan Province, P. R. China
| | - Yuan-Shuang Wu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, NO.296 Bailong Temple, Panlong Zone, Kunming 650224, Yunnan Province, P. R. China
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Wang J, Yang J, Zhou RG, Yang B, Wu YS. A Facile Synthesis of 2, 3-Dimethoxy-5-Methyl-1, 4-Benzoquinones. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x13099377293263] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Several 2, 3-dimethoxy-5-methyl-1, 4-benzoquinones substituted at the C-6 position with alkoxy methyl groups were prepared by a reaction sequence starting from 2, 3, 4, 5-tetramethoxytoluene (alkoxy methyl) via a Blanc chloromethylation reaction, Williamson reaction and oxidation. The method provided a good yield of 2, 3-dimethoxy-5-methyl-1, 4-benzoquinones and is suitable for the synthesis of other benzoquinone analogues.
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Affiliation(s)
- Jin Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, NO.296 Bailong Temple, Panlong Zone, Kunming 650224, Yunnan Province, P. R. China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology (ChengGong Campus), Kunming, 650500, Yunnan Province, P. R. China
| | - Rong-Guang Zhou
- Institute for Drug Research and Development of Kunming Pharmaceutical Corporation, NO.141 Chunyu Road, Wuhua Zone, Kunming 650100, Yunnan Province, P. R. China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, NO.296 Bailong Temple, Panlong Zone, Kunming 650224, Yunnan Province, P. R. China
| | - Yuan-Shuang Wu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, NO.296 Bailong Temple, Panlong Zone, Kunming 650224, Yunnan Province, P. R. China
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