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Said MS, Khonde NS, Kumar P, Gajbhiye JM. Electron-Deficient Fluoroarene-Mediated Synthesis of Trifluoromethyl Ketones from Carboxylic Acids. Org Lett 2023; 25:1094-1098. [PMID: 36757825 DOI: 10.1021/acs.orglett.2c04318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Fluoroarene-mediated trifluoromethylation of carboxylic acids for the synthesis of trifluoromethyl ketones is disclosed. The fluoroarene activates the acid group and generates the fluoride source in situ for the trifluoromethylation reaction. The present protocol is safe and metal-free, operates under mild reaction conditions, and does not require any external additives to generate trifluoromethyl anion. The current transformation provides good functional group tolerance and also delivers 92% and 88% yields of trifluoromethyl ketones in batch and continuous flow, respectively.
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Affiliation(s)
- Madhukar S Said
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nilesh S Khonde
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pradeep Kumar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jayant M Gajbhiye
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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2
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Liu X, Liu L, Huang T, Zhang J, Tang Z, Li C, Chen T. Trifluoromethylation of Benzoic Acids: An Access to Aryl Trifluoromethyl Ketones. Org Lett 2021; 23:4930-4934. [PMID: 34109800 DOI: 10.1021/acs.orglett.1c01720] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The trifluoromethylation of benzoic acids with TMSCF3 was achieved through nucleophilic substitution with the use of anhydrides as an in situ activating reagent. Under the reaction conditions, a wide range of carboxylic acids including the bioactive ones worked well, thus providing a facile and efficient method for preparing aryl trifluoromethyl ketones from the readily available starting materials.
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Affiliation(s)
- Xue Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
| | - Long Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
| | - Tianzeng Huang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
| | - Jingjing Zhang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
| | - Zhi Tang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
| | - Chunya Li
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
| | - Tieqiao Chen
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou 570228, China
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Hao W, Xu Z, Zhou Z, Cai M. Recyclable Heterogeneous Palladium-Catalyzed Cyclocarbonylation of 2-Iodoanilines with Acyl Chlorides in the Biomass-Derived Solvent 2-Methyltetrahydrofuran. J Org Chem 2020; 85:8522-8532. [PMID: 32475119 DOI: 10.1021/acs.joc.0c00887] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A highly efficient, green palladium-catalyzed cyclocarbonylation of 2-iodoanilines with acyl chlorides has been developed that proceeds smoothly in a biomass-derived solvent 2-methyltetrahydrofuran with N,N-diisopropylethylamine as base at 100 °C under 20 bar of carbon monoxide using an 2-aminoethylamino-modified MCM-41-anchored palladium acetate complex [2N-MCM-41-Pd(OAc)2] as a heterogeneous catalyst, yielding a wide variety of 2-substituted 4H-3,1-benzoxazin-4-one derivatives in good to excellent yields. This supported palladium catalyst could be facilely obtained by a two-step procedure from easily available starting materials and readily recovered via a simple filtration process and recycled at least 8 times without any apparent decrease in catalytic efficiency. The developed methodology not only avoids the use of toxic solvents such as tetrahydrofuran and dimethylformamide but also solves the basic problem of expensive palladium catalyst recovery and reuse and prevents effectively palladium contamination of the desired product.
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Affiliation(s)
- Wenyan Hao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Zhaotao Xu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Zebiao Zhou
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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Abou-Seri SM, Taha AM, Mohamed MA, Abdelkader NM. New Quinazoline-Sulfonylurea Conjugates: Design, Synthesis and Hypoglycemic Activity. Med Chem 2019; 15:634-647. [PMID: 30526467 DOI: 10.2174/1573406415666181208104543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/13/2018] [Accepted: 11/25/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Sulphonylureas are the oldest and commonly used to treat diabetic patients, but its efficacy declines by time. It was reported that quinazoline nucleus exhibits a potent hypoglycemic effect in diabetic animal models. OBJECTIVE The current study aimed to synthesize new quinazoline-sulfonylurea conjugates and evaluate their hypoglycemic effects in alloxan-induced diabetic rats. METHODS The conjugates were synthesized by bioisosteric replacement of 5-chloro-2-methoxybenzamide moiety in glibenclamide or 1,3-dioxo-3,4-dihydroisoquinoline moiety in gliquidone with 6,7-dimethoxy-4-oxoquinazoline moiety (compounds 4a-4d, 9b-9c and 10b-10d). Diabetes was induced in rats by a single i.p. administration of alloxan, followed by treatment with the synthesized conjugates (5mg/kg Body weight). RESULTS All conjugates showed hypoglycemic effects with different efficacy indicated by the reduction in blood glucose and elevation of insulin levels. Moreover, these conjugates up-regulated the expression of pancreatic glucose transporter 2, muscle glucose transporter 4, and insulin receptor substrate-1 genes, compared to the diabetic group. A normal pancreatic tissue pattern was noticed in diabetic rats treated with compounds 9b, 9c, and 10c. CONCLUSION Conjugation of sulfonylurea with quinazoline (especially 9b, 9c, 10c) possessed a significant hypoglycemic effect through improving blood insulin level and insulin action and consequently increased the glucose uptake by the skeletal muscles.
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Affiliation(s)
- Sahar M Abou-Seri
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - AlShaimaa M Taha
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Mona A Mohamed
- Biochemistry Division, Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Nour M Abdelkader
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
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Gao J, Pan Y, Li Y, Li Y. 1-(2-Amino-5-chlorophenyl)-2,2,2-trifluoroethan-1-one. IUCRDATA 2019. [DOI: 10.1107/s2414314619010253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In the title compound, C8H5ClF3NO, the F—C—C=O grouping shows a syn conformation [torsion angle = 1.1 (3)°] and an intramolecular N—H...O hydrogen bond generates an S(6) ring. In the crystal, N—H...F and N—H...O hydrogen bonds link the molecules into [010] chains.
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Liu XX, Luo XL, Wu ZY, Cui XF, Zhou XQ, He YQ, Huang GS. Oxidative Recyclization of 1H-Indoles for Synthesis of 2-Indolylbenzoxazinones via Cleavage of the C2–C3 Bond with AIBN under Air. J Org Chem 2017; 82:2107-2113. [DOI: 10.1021/acs.joc.6b02893] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xing-Xing Liu
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xin-Liang Luo
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhao-Yang Wu
- The Environmental
Protection Agency of Rudong Coastal Economic Development Zone, Nantong 226400, China
| | - Xin-Feng Cui
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiao-Qiang Zhou
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Qin He
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Guo-Sheng Huang
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou 730000, China
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Varshney H, Ahmad A, Rauf A, Husain FM, Ahmad I. Synthesis and antimicrobial evaluation of fatty chain substituted 2,5-dimethyl pyrrole and 1,3-benzoxazin-4-one derivatives. JOURNAL OF SAUDI CHEMICAL SOCIETY 2017. [DOI: 10.1016/j.jscs.2014.04.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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8
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Yamashita M, Iida A. One-pot approach to 2-arylbenzoxazinone derivatives from 2-alkynylanilines using copper-mediated tandem reactions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Liu X, Xu C, Wang M, Liu Q. Trifluoromethyltrimethylsilane: nucleophilic trifluoromethylation and beyond. Chem Rev 2014; 115:683-730. [PMID: 24754488 DOI: 10.1021/cr400473a] [Citation(s) in RCA: 839] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiao Liu
- Department of Chemistry, Northeast Normal University , Changchun 130024, China
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Yamashita M, Iida A. Copper-mediated oxidative tandem reactions with molecular oxygen: synthesis of 2-arylbenzoxazinone derivatives from indoles. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.128] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Liu Q, Chen K, Wang Q, Ni J, Li Y, Zhu H, Ding Y. Synthesis, insecticidal activity, structure–activity relationship (SAR) and density functional theory (DFT) of novel anthranilic diamides analogs containing 1,3,4-oxadiazole rings. RSC Adv 2014. [DOI: 10.1039/c4ra06356b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A series of anthranilic diamides analogs (5a–x) containing 1,3,4-oxadiazole rings were synthesized, and their insecticidal activities were evaluated. The density functional theory (DFT) studies was used to understand the various insecticidal activities.
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Affiliation(s)
- Qi Liu
- Department of Applied Chemistry
- College of Science
- Nanjing Tech University
- Nanjing 211816, P. R. China
| | - Kai Chen
- Department of Applied Chemistry
- College of Science
- Nanjing Tech University
- Nanjing 211816, P. R. China
| | - Qiang Wang
- Department of Applied Chemistry
- College of Science
- Nanjing Tech University
- Nanjing 211816, P. R. China
| | - Jueping Ni
- Jiangsu Pesticide Research Institute Co Ltd
- Nanjing 210047, P. R. China
| | - Yufeng Li
- Department of Applied Chemistry
- College of Science
- Nanjing Tech University
- Nanjing 211816, P. R. China
| | - Hongjun Zhu
- Department of Applied Chemistry
- College of Science
- Nanjing Tech University
- Nanjing 211816, P. R. China
| | - Yuan Ding
- Department of Applied Chemistry
- College of Science
- Nanjing Tech University
- Nanjing 211816, P. R. China
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Wu M, Wang M, Cao S. Copper(I)-Catalyzed Trifluoromethylation of Phthalic Anhydride Derivatives with (Trifluoromethyl)trimethylsilane. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201300357] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Khangarot RK, Kaliappan KP. Stereoselective Synthesis of Trifluoromethyl Analogues of Polyhydroxypyrrolidines. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201599] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Liu Q, Chen P, Liu G. Palladium-Catalyzed C–C Triple Bond Cleavage: Efficient Synthesis of 4H-Benzo[d][1,3]oxazin-4-ones. ACS Catal 2013. [DOI: 10.1021/cs300733s] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Qilun Liu
- State Key Laboratory of Organometallics
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai, China,
200032
| | - Pinhong Chen
- State Key Laboratory of Organometallics
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai, China,
200032
- Key Laboratory of
Functional Small Organic Molecule, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
| | - Guosheng Liu
- State Key Laboratory of Organometallics
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai, China,
200032
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Shidlovskii AF, Golubev AS, Gusev DV, Suponitsky KY, Peregudov AS, Chkanikov ND. A new synthesis of N-substituted о-trifluoroacetylanilines. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2012.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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