1
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Li G, Zhang H, Zhang G, Wei B, Liu B, Song H, Li Q, Ban S. Asymmetric Synthesis of Spiropyrazolone-Fused Dihydrofuran-naphthoquinones Bearing Contiguous Stereocenters via a Michael Addition/Chlorination/Nucleophilic Substitution Sequence. J Org Chem 2023; 88:4809-4813. [PMID: 36945756 DOI: 10.1021/acs.joc.2c03013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
An enantioselective synthesis of spiropyrazolone-fused dihydrofuran-naphthoquinones is first demonstrated via a Michael addition/Chlorination/Nucleophilic substitution sequence. The reactions of 2-hydroxy-1,4-naphthoquinone and α,β-unsaturated pyrazolones in the presence of the cinchona alkaloid derived hydrogen-bonding catalyst and NCS provide spiropyrazolone-fused 2,3-dihydronaphtho[2,3-b]furan-4,9-diones bearing contiguous stereocenters, of which one is the spiro quaternary stereocenter in high yields with exclusive diastereoselectivity and good to excellent enantioselectivities.
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Affiliation(s)
- Gaihui Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Hongyu Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Guoshun Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Bei Wei
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Bin Liu
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Heng Song
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Qingshan Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
- Shanxi Key laboratory of Chronic Inflammatory Targeted Drugs, Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi 030619, China
| | - Shurong Ban
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
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2
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Reddy YP, Anwar S. Synthesis of fully functionalised spiropyran pyrazolone skeletons via a formal [4 + 2] cascade process using β-nitro-styrene-derived MBH-alcohols. RSC Adv 2022; 12:34634-34638. [PMID: 36545601 PMCID: PMC9717676 DOI: 10.1039/d2ra06076k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/12/2022] [Indexed: 12/03/2022] Open
Abstract
An efficient protocol was established to construct spiro pyrazolone tetrahydropyran scaffolds at ambient temperature under metal-free conditions. The reaction proceeded via formal [4 + 2] cyclisation of trans-β-nitro-styrene-derived Morita-Baylis-Hillman (MBH) alcohol with α-arylidene pyrazolone. The reaction followed an oxa-Michael/Michael cascade pathway, resulting in the formation of new C-C and C-O bonds. Organocatalytic synthesis of spiropyrazolones using quinine-derived catalyst resulted in 94% enantiomeric excess (ee) and excellent (>20 : 1) diastereoselectivity.
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Affiliation(s)
- Yeruva Pavankumar Reddy
- Department of Chemistry, School of Applied Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University)Vadlamudi-522213GunturAndhra PradeshIndiahttp://www.vignan.ac.in/bshanwar.php+91-8632344700
| | - Shaik Anwar
- Department of Chemistry, School of Applied Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University)Vadlamudi-522213GunturAndhra PradeshIndiahttp://www.vignan.ac.in/bshanwar.php+91-8632344700
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3
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Farghaly TA, Al-Hussain SA, Zaki MEA, Al-Qurashi NT, Alharbi SS, Muhammad ZA. A Review Article on Synthesis of Different Types of Bioactive Spiropyrazole Derivatives. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2105911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Thoraya A. Farghaly
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Sami A. Al-Hussain
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Magdi E. A. Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Nadia T. Al-Qurashi
- Department of Basic Science, University College in Adam, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Salwa S. Alharbi
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Zeinab A. Muhammad
- Department of Organic Chemistry, National Organization for Drug Control and Research (NODCAR), Giza, Egypt
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4
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A. Farghaly T, A. Al-Hussain S, E. A. Zaki M, H. Asghar B, A. Muhammad Z. Synthesis of spiropyrazoles under organic and nonorganic catalysis. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220517220157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Spiropyrazoles display many biological biological activities such as antitumor, vasodilation, analgesic, phosphodiesterase inhibitors, aldosterone antagonistic, anabolic, androgenic, anti-inflammatory, progestational and salt-retaining activities and they also exert neuroprotection in dopaminergic cell death. Many efforts have been made to obtain these derivatives with high yield and excellent regio-, diastereo- and enantioselectivities. Most of the spiroprazole synthesis methods were proceeded in good to excellent yield in the presence of organic catalysts as for examples squaramide, NHC pre-catalyst, pyrrole derivatives, bis-oxazoline, DMAP, DABCO, thiourea derivatives, DBU, acetic acid and quinoline catalysts. In addition, the inorganic and organo-metallic catalysts have been proven their efficiency in synthesis of various types of spiro-pyrazoles in excellent yield. Thus, in this review we have compiled all citations for the synthesis of spiropyrazoles in the presence of various types of catalysts such as organic, inorganic, and metalorganic catalysts in the range 2020 to 2012. This review article is a useful compilation for researchers interested in the synthesis of spiropyrazole derivatives and will assist them in selecting appropriate catalysts for preparation of their spiropyrazoles.
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Affiliation(s)
- Thoraya A. Farghaly
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Sami A. Al-Hussain
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Magdi E. A. Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Basim H. Asghar
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Zeinab A. Muhammad
- Department of Organic Chemistry, National Organization for Drug Control and Research (NODCAR), Giza 12311, Egypt
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5
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Popova EA, Pronina YA, Davtian AV, Nepochatyi GD, Petrov ML, Boitsov VM, Stepakov AV. Squaramide-Based Catalysts in Organic Synthesis (A Review). RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s107036322203001x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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6
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Torán R, Miguélez R, Sanz‐Marco A, Vila C, Pedro JR, Blay G. Asymmetric Addition and Cycloaddition Reactions with Ylidene‐Five‐Membered Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ricardo Torán
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Rubén Miguélez
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Amparo Sanz‐Marco
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Carlos Vila
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - José R. Pedro
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Gonzalo Blay
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
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7
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Yan C, Sun J, Han Y, Yan C. Domino Reaction for Synthesis of Spiro[pyrazole‐4,5′‐pyrrolo[3,4‐
c
]carbazoles] and Spiro[pyrrolo[3,4‐
c
]carbazole‐5,5′‐thiazoles]. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chen Yan
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
| | - Jing Sun
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
| | - Ying Han
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
| | - Chao‐Guo Yan
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
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8
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Squaramide-catalyzed asymmetric Michael/cyclization of 4-isothiocyanato pyrazolones and α,β-unsaturated ketones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Wei R, Gao L, Li G, Tang L, Zhang G, Zheng F, Song H, Li Q, Ban S. Squaramide-catalysed asymmetric Friedel-Crafts alkylation of naphthol and unsaturated pyrazolones. Org Biomol Chem 2021; 19:3370-3373. [PMID: 33899883 DOI: 10.1039/d1ob00347j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The first method for highly efficient asymmetric Michael-type Friedel-Crafts alkylation of naphthol and unsaturated pyrazolones has been accomplished under mild reaction conditions. In the presence of the chiral squaramide catalyst, a wide range of substrates are tolerated in excellent yields (up to 99%) with reasonable enantioselectivities (up to 96% ee).
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Affiliation(s)
- Ran Wei
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Li Gao
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Gaihui Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Li Tang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Guoshun Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Feilang Zheng
- Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi, 046000 China
| | - Heng Song
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China. and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Qingshan Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China. and Shanxi Key laboratory of Chronic Inflammatory Targeted Drugs, Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi, 030619, China
| | - Shurong Ban
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
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10
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Organocatalytic Amination of Pyrazolones with Azodicarboxylates: Scope and Limitations. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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11
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Bera K, Ayyagari N, Satam N, Namboothiri INN. Stereoselective synthesis of hydrazinodihydrofurans via cascade Michael addition-substitution involving the reaction of curcumin and other β-dicarbonyls with α-hydrazinonitroalkenes. Org Biomol Chem 2019; 18:140-153. [PMID: 31803896 DOI: 10.1039/c9ob01974j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Highly diastereoselective synthesis of 2-hydrazinated 2,3-dihydrofurans in good to excellent yields involving an interrupted Feist-Bénary type reaction by treating a wide variety of 1,3-dicarbonyl compounds, including curcumins, with α-hydrazinated nitroalkenes is reported here. The first ever enantioselective reaction of α-hydrazinonitroalkenes has also been carried out with two selected 1,3-dicarbonyls, dimedone and cyclohexanone by employing an l-t-leucine derived squaramide as the chiral organocatalyst to afford the enantio-enriched 2-hydrazinodihydrofurans as single diastereomers in good yields and with good enantioselectivities.
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Affiliation(s)
- Kalisankar Bera
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
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12
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Xie X, Xiang L, Peng C, Han B. Catalytic Asymmetric Synthesis of Spiropyrazolones and their Application in Medicinal Chemistry. CHEM REC 2019; 19:2209-2235. [PMID: 30821425 DOI: 10.1002/tcr.201800199] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/11/2019] [Accepted: 02/11/2019] [Indexed: 01/24/2023]
Abstract
Chiral spiropyrazolones are unique frameworks widely found in a large family of medicinally relevant compounds with various biological activities. Substantial research efforts have been invested toward stereoselectively by constructing spiro-cyclic structures. Over the past years, remarkable progress has been made in the organo- and metal-catalyzed asymmetric synthesis of spiropyrazolones through the utilization of accessible simple pyrazolone derivatives as raw materials. This review is organized according to the size of the spiro-ring fused at the 4-position of the pyrazolone framework. In the last part, the bio-evaluations of chiral spiropyrazolones for drug discovery are summarized.
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Affiliation(s)
- Xin Xie
- College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Xiang
- State Key Laboratory of Southwestern Chinese Medicine Resource, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,State Key Laboratory of Southwestern Chinese Medicine Resource, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bo Han
- College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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13
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Luo W, Shao B, Li J, Song D, Yi X, Ling F, Zhong W. Divergent synthesis of spirocyclopentene-pyrazolones and pyrano[2,3-c]-pyrazoles via Lewis base controlled annulation reactions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151206] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Li Y, Zhang X, Lu T, Miao Z. A regioselective Synthesis of Substituted Pyrazolines
via
a Cascade Annulation of Huisgen Zwitterion with α‐Cyano‐α,β‐unsaturated Ketones Under Solvent‐free Heating Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201901500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuming Li
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Weijin Road 94 Tianjin 300071 People's Republic of China
| | - Xuange Zhang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Weijin Road 94 Tianjin 300071 People's Republic of China
| | - Tianyu Lu
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Weijin Road 94 Tianjin 300071 People's Republic of China
| | - Zhiwei Miao
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Weijin Road 94 Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 People's Republic of China
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15
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Chu MM, Qi SS, Wang YF, Wang B, Jiang ZH, Xu DQ, Xu ZY. Organocatalytic asymmetric [4 + 1] annulation of in situ generated ortho-quinomethanes with 4-halo pyrazolones: straightforward access to chiral spiro-benzofuran pyrazolones. Org Chem Front 2019. [DOI: 10.1039/c9qo00332k] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Asymmetric [4 + 1] annulation of ortho-quinomethanes with 4-halo pyrazolones was developed to construct spiro-benzofuran pyrazolones.
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Affiliation(s)
- Ming-Ming Chu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Suo-Suo Qi
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Yi-Feng Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Biao Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Zhen-Hui Jiang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
| | - Zhen-Yuan Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province
- Department of Green Chemistry and Technology
- Zhejiang University of Technology
- Hangzhou 310014
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16
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Shukla K, Shah S, Rana NK, Singh VK. An efficient and highly diastereoselective synthesis of carbocyclic spiropyrazolones via one-pot sequential dual organo-silver catalyzed Michael-hydroalkylation reactions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.11.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Zhang XL, Feng KX, Xia AB, Zheng YY, Li C, Du XH, Xu DQ. Asymmetric Synthesis of 2,3-Dihydrofurans by One-Pot Michael Addition/I2
-Mediated Cyclization. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800575] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiao-Long Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Kai-Xiang Feng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Ai-Bao Xia
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Ya-Yun Zheng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Chen Li
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Xiao-Hua Du
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
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18
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Zhou J, Huang WJ, Jiang GF. Synthesis of Chiral Pyrazolone and Spiropyrazolone Derivatives through Squaramide-Catalyzed Reaction of Pyrazolin-5-ones with o-Quinone Methides. Org Lett 2018; 20:1158-1161. [DOI: 10.1021/acs.orglett.8b00025] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ji Zhou
- State Key Lab of Chemo/Biosensing and
Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Wen-Jun Huang
- State Key Lab of Chemo/Biosensing and
Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Guo-Fang Jiang
- State Key Lab of Chemo/Biosensing and
Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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19
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Liu S, Bao X, Wang B. Pyrazolone: a powerful synthon for asymmetric diverse derivatizations. Chem Commun (Camb) 2018; 54:11515-11529. [DOI: 10.1039/c8cc06196c] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This feature article reports recent advances in the asymmetric diverse derivatizations of the pyrazolone scaffold.
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Affiliation(s)
- Siyuan Liu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xiaoze Bao
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
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20
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Maity R, Pan SC. Enantioselective aminocatalytic synthesis of tetrahydropyrano[2,3-c]pyrazoles via a domino Michael-hemiacetalization reaction with alkylidene pyrazolones. Org Biomol Chem 2017; 15:8032-8036. [DOI: 10.1039/c7ob02170d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective organocatalytic synthesis of fused tetrahydropyranopyrazole products has been achieved via a domino Michael-hemiacetalization reaction between alkylidene pyrazolones and cyclic ketones/pentanal.
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Affiliation(s)
- Rajendra Maity
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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