1
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Handore KL, Lu H, Park H, Xiong Q, Batey RA. Synthesis of N-Hydroxysuccinimide Esters, N-Acylsaccharins, and Activated Esters from Carboxylic Acids Using I 2/PPh 3. J Org Chem 2024. [PMID: 38805361 DOI: 10.1021/acs.joc.4c00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
A method for the syntheses of isolable, active esters is described in which carboxylic acids are treated with triphenylphosphine, iodine, and triethylamine. Active esters accessible in this way include N-hydroxysuccinimide esters, N-hydroxyphthalimide esters (N-(acyloxy)phthalimides), N-acylsaccharins, pentafluorophenol esters, pentachlorophenol esters, N-hydroxybenzotriazole esters, and hexafluoro-2-propanol esters. The approach can be similarly applied toward the formation of N-acylsaccharins and N-acylimidazoles. The method is suitable for the formation of isolable active esters of aromatic and aliphatic activated acids as well as α-amino acid derivatives. These products are widely used reagents in organic synthesis, peptide synthesis, medicinal chemistry, and chemical biology (e.g., for bioconjugations). The method has broad substrate scope, uses simple and inexpensive reagents, avoids the use of carbodiimides or other coupling agents, and occurs at room temperature. Additionally, the diastereomers of compound Boc-Ala-NHCHPh are demonstrated to be distinguishable by 1H NMR (in DMSO-d6), allowing for a straightforward NMR method to establish the degree of racemization of activated esters of Boc-Ala or amide bond formations using Boc-Ala.
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Affiliation(s)
- Kishor L Handore
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Heyuan Lu
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Hyeongbin Park
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Qingyu Xiong
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Robert A Batey
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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2
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Pan B, Huang DM, Sun HT, Song SN, Su XB. Heterocyclic Boron Acid Catalyzed Dehydrative Amidation of Aliphatic/Aromatic Carboxylic Acids with Amines. J Org Chem 2023. [PMID: 36791405 DOI: 10.1021/acs.joc.2c02515] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A commercially available and versatile dehydrative amidation catalyst, featuring a thianthrene boron acid structure, has been developed. The catalyst shows high catalytic activity to both aliphatic and less reactive aromatic carboxylic acid substrates, including several bioactive or clinical molecules with a carboxylic acid group.
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Affiliation(s)
- Bin Pan
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Ding-Min Huang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Hao-Tian Sun
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Sheng-Nan Song
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xian-Bin Su
- State Key Laboratory of Material-Oriented Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
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3
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Reactions of 3-Hydroxy-2-phenyl-1 H-benzo[ e]isoindol-1-one: A Route to 3-Hydroxy-/3-anilinobenzo[ e]indan-1-ones and Benzo[ f]phthalazin-1(2 H)-ones. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238319. [PMID: 36500412 PMCID: PMC9737834 DOI: 10.3390/molecules27238319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 12/02/2022]
Abstract
New hydroxy- and anilinoindanone derivatives 3 and 4 were synthesized starting from 3-hydroxybenzo[e]isoindolinone 1 via the addition of alkyllithium (s-BuLi, n-BuLi, MeLi or i-PrLi) to the carbonyl group, followed by lactam ring opening and, finally, an intramolecular cyclization leading to target compounds. The same starting material was used for the preparation of the new benzo[f]phthalazinone derivatives 12-16 through multi-step reactions. The target derivative 16 was obtained from the corresponding bromolactam 15 by the Buchwald-Hartwig amination. Structures of the obtained compounds were confirmed by the NMR spectra.
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4
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3,5-Dinitrobenzoate and 3,5-Dinitrobenzamide Derivatives: Mechanistic, Antifungal, and In Silico Studies. J CHEM-NY 2022. [DOI: 10.1155/2022/2336175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Fungal infections, including those caused by Candida spp., are recognized in immunocompromised individuals for their high rates of morbidity and mortality. Microorganism resistance to conventional drugs compromises treatment effectiveness and yet also reveals the need to develop new drugs. In many compounds, nitro groups contribute to antimicrobial activity; thus, the inhibitory activity of a collection of twenty esters and amides (derived from 3,5-dinitrobenzoic acid) against Candida spp. was elucidated using microdilution methods to determine the Minimum Inhibitory Concentration (MIC) and Minimum Fungicide Concentration (MFC), as well as probable mechanisms of action. The structures of the synthesized compounds were characterized by FTIR spectroscopy, 1H-NMR, 13C NMR, and HRMS. Of the tested derivatives, ten presented fungicidal activity against at least one of the tested strains. Ethyl 3,5-dinitrobenzoate (2) exhibited the most potent antifungal activity against Candida albicans (MIC = 125 µg/mL; 0.52 mM), Candida krusei (MIC = 100 µg/mL; 4.16 mM), and Candida tropicalis (MIC = 500 µg/ml; 2.08 mM). The structure of the second most potent derivative (propyl 3,5-dinitrobenzoate (3) reveals that esters with short alkyl side chains exhibit better biological activity profiles. Compounds 2 and 3 presented a mechanism of action involving the fungal cell membrane. Though compound 2 modeling against C. albicans revealed a multitarget antifungal mechanism of action, involving various cellular processes, interference in the synthesis of ergosterol was observed. Our results demonstrate that certain ester derivatives containing aromatic ring nitro groups may be useful in the search for new antifungal drugs.
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5
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Gordon CP, Tadros J, Dankers C, Jurisinec A, Menti M, Aldrich-Wright J. A Comparison of Immobilised Triphenylphosphine and 1-Hydroxybenzotriazole as Mediators of Catch-and-Release Acylation Under Flow Conditions. Chem Asian J 2022; 17:e202101308. [PMID: 35048529 DOI: 10.1002/asia.202101308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/12/2022] [Indexed: 11/09/2022]
Abstract
Described herein is a comparative study of immobilised triphenylphosphine (PS-PPh3) and 1-hydroxybenzotriazole (PS-HOBt) to mediate amide couplings under continuous flow. Compared to Appel-type amidations (PS-PPh3), the developed 'catch-and-release' approach (PS-HOBt) afforded near-quantitative amide conversions. Utilising this strategy, sulfonyl chloride amenability enabled facile access to an expanded library of sulfonate and sulfonamides. Post-constructional peptide modification was also demonstrated, affording two Nβ-functionalised pentapeptides in high yields and purities. In contrast to frequently utilised coupling agents, the PS-HOBt resin could be recycled six times without a reduction in efficacy or regeneration requirements.
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Affiliation(s)
- Christopher Peter Gordon
- Western Sydney University, School of Science and Health, Goldsmith Ave, Campbelltown, NSW 2560, Australia, 2560, Campbelltown, AUSTRALIA
| | - Joseph Tadros
- Western Sydney University, School of Science and Health, AUSTRALIA
| | | | - Ashley Jurisinec
- Western Sydney University, School of Science and Health, AUSTRALIA
| | - Maria Menti
- Western Sydney University, School of Science and Health, AUSTRALIA
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6
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Zhang XG, He ZX, Guo P, Chen Z, Ye KY. Cobalt-catalyzed Divergent Markovnikov and Anti-Markovnikov Hydroamination. Org Lett 2021; 24:22-26. [PMID: 34911296 DOI: 10.1021/acs.orglett.1c03511] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Catalytic hydroamination of the readily available alkenes is among the most straightforward means to construct diverse alkyl amines. To this end, the facile access to both regioselectivity, i.e., Markovnikov or anti-Markovnikov hydroamination, with minimum reaction-parameter alternation, remains challenging. Herein, we report a cobalt-catalyzed highly selective and divergent Markovnikov and anti-Markovnikov hydroamination of alkenes, in which the switch of regioselectivity is achieved simply by the variation of the addition sequence of 9-BBN.
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Affiliation(s)
- Xiang-Gui Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zi-Xin He
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Peng Guo
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zheng Chen
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ke-Yin Ye
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
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7
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Discovery of methoxy-naphthyl linked N-(1-benzylpiperidine) benzamide as a blood-brain permeable dual inhibitor of acetylcholinesterase and butyrylcholinesterase. Eur J Med Chem 2020; 207:112761. [DOI: 10.1016/j.ejmech.2020.112761] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 08/15/2020] [Accepted: 08/15/2020] [Indexed: 02/06/2023]
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8
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Xue K, Sun G, Zhang Y, Chen X, Zhou Y, Hou J, Long H, Zhang Z, Lei M, Wu W. A new method for the synthesis of chalcone derivatives promoted by PPh3/I2under non-alkaline conditions. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1847295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Kangsheng Xue
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, P. R. China
| | - Guoxiang Sun
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, P. R. China
| | - Yanzhi Zhang
- College of Pharmacy, Dali University, Dali, P. R. China
| | - Xubing Chen
- College of Pharmacy, Dali University, Dali, P. R. China
| | - Yang Zhou
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Jinjun Hou
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Huali Long
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Zijia Zhang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Min Lei
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Wanying Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
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9
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Shekharappa, Roopesh Kumar L, Srinivasulu C, Sureshbabu VV. Dehydration of Chiral α-Amides to Chiral α-Nitriles Under the Appel Reaction Conditions. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-020-10101-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Miao W, Ye P, Bai M, Yang Z, Duan S, Duan H, Wang X. Iodine-catalyzed efficient synthesis of xanthene/thioxanthene-indole derivatives under mild conditions. RSC Adv 2020; 10:25165-25169. [PMID: 35517437 PMCID: PMC9055358 DOI: 10.1039/d0ra05217e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 06/26/2020] [Indexed: 01/18/2023] Open
Abstract
An iodine-catalyzed nucleophilic substitution reaction of xanthen-9-ol and thioxanthen-9-ol with indoles has been developed, providing an efficient procedure for the synthesis of xanthene/thioxanthene-indole derivatives with good to excellent yields. This protocol offers several advantages, such as short reaction times, green solvent, operational simplicity, easily available catalyst and mild reaction conditions. Moreover, this method showed good tolerance of functional groups and a wide range of substrates. An efficient synthesis of xanthene/thioxanthene-indole derivatives has been developed through iodine-catalyzed nucleophilic substitution reaction of xanthen-9-ols and thioxanthen-9-ol with indoles.![]()
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Affiliation(s)
- Weihang Miao
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province
- School of Science
- Honghe University
- Mengzi
- China
| | - Pingting Ye
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province
- School of Science
- Honghe University
- Mengzi
- China
| | - Mengjiao Bai
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province
- School of Science
- Honghe University
- Mengzi
- China
| | - Zhixin Yang
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province
- School of Science
- Honghe University
- Mengzi
- China
| | - Suyue Duan
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province
- School of Science
- Honghe University
- Mengzi
- China
| | - Hengpan Duan
- International Academy of Targeted Therapeutics and Innovation
- School of Pharmacy
- Chongqing University of Arts and Sciences
- Chongqing
- China
| | - Xuequan Wang
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province
- School of Science
- Honghe University
- Mengzi
- China
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11
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Rokhum L, Bez G. Recent Application of Polystyrene-supported Triphenylphosphine in Solid-Phase Organic Synthesis. CURR ORG CHEM 2019. [DOI: 10.2174/1385272822666181026115752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent years have witnessed a fast development of solid phase synthetic pathways, a variety of solid-supported reagent and its applications in diverse synthetic strategies and pharmaceutical applicability’s. Polymer-supported triphenylphosphine is getting a lot of applications owing to the speed and simplicity in the process. Furthermore, ease of recyclability and reuse of polymer-supported triphenylphosphine added its advantages. This review covers a wide range of useful organic transformations which are accomplished using cross-linked polystyrene-supported triphenylphosphine with the aim of giving renewed interest in the field of organic and medicinal-combinatorial chemistry.
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Affiliation(s)
- Lalthazuala Rokhum
- Department of Chemistry, National Institute of Technology, Silchar-788010, India
| | - Ghanashyam Bez
- Department of Chemistry, North Eastern Hill University, Shillong-793022, India
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12
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Graßl S, Hamze C, Koller TJ, Knochel P. Copper-Catalyzed Electrophilic Thiolation of Organozinc Halides by Using N-Thiophthalimides Leading to Polyfunctional Thioethers. Chemistry 2019; 25:3752-3755. [PMID: 30637818 DOI: 10.1002/chem.201806261] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/10/2019] [Indexed: 12/24/2022]
Abstract
(Hetero)aryl, benzylic, and alkyl zinc halides were thiolated with N-thiophthalimides at 25 °C within 1 h in the presence of 5-10 % Cu(OAc)2 ⋅H2 O to furnish the corresponding polyfunctionalized thioethers in good yields. This electrophilic thiolation was extended to the introduction of trifluoromethylthio (SCF3 ), thiocyanate (SCN), and selenophenyl (SePh) groups. The utility of this method was shown in a seven-step synthesis of a potent cathepsin D inhibitor in 34 % overall yield.
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Affiliation(s)
- Simon Graßl
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Clémence Hamze
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Thaddäus J Koller
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
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13
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Sun C, Cao S, Zhao P, Ma W, Guo Y, Zhao Y. The investigation on the N H reactivity of pentacoordinate spirophosphoranes by H/D exchange and NMR experiments. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Gondal HY, Cheema ZM, Zaidi JH, Yousuf S, Choudhary MI. Facile synthesis of α-alkoxymethyltriphenylphosphonium iodides: new application of PPh 3/I 2. Chem Cent J 2018; 12:62. [PMID: 29774487 PMCID: PMC5957017 DOI: 10.1186/s13065-018-0421-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/28/2018] [Indexed: 11/16/2022] Open
Abstract
An efficient one pot method for the synthesis of α-alkoxymethylphosphonium iodides is developed by using PPh3/I2 combination at room temperature. Reaction conditions are found general to synthesize wide range of structurally variant alkoxymethylphosphonium iodides in high yield (70-91%). These new functionalized phosphonium salts are further used in stereoselective synthesis of vinyl ethers as well as in carbon homologation of aldehydes.
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Affiliation(s)
| | - Zain Maqsood Cheema
- Department of Chemistry, University of Sargodha, Sargodha, 40100, Pakistan
- Department of Chemistry, University of Sheffield, Sheffield, UK
| | - Javid Hussain Zaidi
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Sammer Yousuf
- H.E.J Research Institute of Chemistry, ICCBS, University of Karachi, Karachi, 75270, Pakistan
| | - M Iqbal Choudhary
- H.E.J Research Institute of Chemistry, ICCBS, University of Karachi, Karachi, 75270, Pakistan
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15
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Das J, Banerjee D. Nickel-Catalyzed Phosphine Free Direct N-Alkylation of Amides with Alcohols. J Org Chem 2018; 83:3378-3384. [PMID: 29441778 DOI: 10.1021/acs.joc.7b03215] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein, we developed an operational simple, practical, and selective Ni-catalyzed synthesis of secondary amides. Application of renewable alcohols, earth-abundant and nonprecious nickel catalyst facilitates the transformations, releasing water as byproduct. The catalytic system is tolerant to a variety of functional groups including nitrile, allylic ether, and alkene and could be extended to the synthesis of bis-amide, antiemetic drug Tigan, and dopamine D2 receptor antagonist Itopride. Preliminary mechanistic studies revealed the participation of a benzylic C-H bond in the rate-determining step.
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Affiliation(s)
- Jagadish Das
- Department of Chemistry , Indian Institute of Technology Roorkee , Roorkee - 247667 , Uttarakhand , India
| | - Debasis Banerjee
- Department of Chemistry , Indian Institute of Technology Roorkee , Roorkee - 247667 , Uttarakhand , India
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16
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Phakhodee W, Duangkamol C, Wiriya N, Pattarawarapan M. A convenient one-pot synthesis of N-substituted amidoximes and their application toward 1,2,4-oxadiazol-5-ones. RSC Adv 2018; 8:38281-38288. [PMID: 35559089 PMCID: PMC9090163 DOI: 10.1039/c8ra08207c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 11/01/2018] [Indexed: 11/25/2022] Open
Abstract
The first direct one-pot approach for the synthesis of N-substituted amidoximes from secondary amides or the intermediate amides has been developed. Through the Ph3P–I2-mediated dehydrative condensation, a variety of N-aryl and N-alkyl amidoximes (R1(C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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NOH)NHR2, where R1 or R2 = aryl, alkyl, or benzyl) were readily afforded under mild conditions and short reaction times. The synthetic application of the obtained amidoximes has also been demonstrated through the formation of 1,2,4-oxadiazolones via base-mediated carbonylative cyclization with 1,1′-carbonyldiimidazole. Ph3P–I2 mediated one-pot synthesis of N-substituted amidoximes via imidoyl iodide was developed. The synthesis of 1,2,4-oxadiazol-5-ones was also demonstrated.![]()
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Affiliation(s)
- Wong Phakhodee
- Department of Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Chuthamat Duangkamol
- Department of Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Nitaya Wiriya
- Department of Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Mookda Pattarawarapan
- Department of Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
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17
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18
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An efficient procedure for chemoselective amidation from carboxylic acid and amine (ammonium salt) under mild conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3229-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Wangngae S, Pattarawarapan M, Phakhodee W. Ph3P/I2-Mediated Synthesis of N,N′,N″-Substituted Guanidines and 2-Iminoimidazolin-4-ones from Aryl Isothiocyanates. J Org Chem 2017; 82:10331-10340. [DOI: 10.1021/acs.joc.7b01794] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sirilak Wangngae
- Department
of Chemistry, Faculty of Science, ‡Graduate School, §Center of Excellence in Materials
Science and Technology, and ∥Center of Excellence for Innovation in Chemistry,
Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Mookda Pattarawarapan
- Department
of Chemistry, Faculty of Science, ‡Graduate School, §Center of Excellence in Materials
Science and Technology, and ∥Center of Excellence for Innovation in Chemistry,
Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wong Phakhodee
- Department
of Chemistry, Faculty of Science, ‡Graduate School, §Center of Excellence in Materials
Science and Technology, and ∥Center of Excellence for Innovation in Chemistry,
Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
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20
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Phakhodee W, Wangngae S, Pattarawarapan M. Approach to the Synthesis of 2,3-Disubstituted-3H-quinazolin-4-ones Mediated by Ph3P–I2. J Org Chem 2017; 82:8058-8066. [DOI: 10.1021/acs.joc.7b01322] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wong Phakhodee
- Department of Chemistry and
Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sirilak Wangngae
- Department of Chemistry and
Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Mookda Pattarawarapan
- Department of Chemistry and
Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
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Jiang L, Yu J, Niu F, Zhang D, Sun X. A high-efficient method for the amidation of carboxylic acids promoted by triphenylphosphine oxide and oxalyl chloride. HETEROATOM CHEMISTRY 2017. [DOI: 10.1002/hc.21364] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lixue Jiang
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai China
| | - Jing Yu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai China
| | - Fanfan Niu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai China
| | - Derundong Zhang
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai China
| | - Xiaoling Sun
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; Shanghai China
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22
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Phakhodee W, Wangngae S, Wiriya N, Pattarawarapan M. Ph3P/I2-mediated synthesis of N,N′-disubstituted and N,N,N′-trisubstituted amidines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Marinho E, Proença MF. Reactivity and regioselectivity in the acylation of 2,4-diaminoquinazolines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Ultrasonic-assisted synthesis of carbodiimides from N,N′-disubstituted thioureas and ureas. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1761-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Phakhodee W, Duangkamol C, Pattarawarapan M. Ph3P-I2 mediated aryl esterification with a mechanistic insight. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Phakhodee W, Wangngae S, Pattarawarapan M. Metal-free amidation of carboxylic acids with tertiary amines. RSC Adv 2016. [DOI: 10.1039/c6ra12801g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Combination of Ph3P and I2 with an appropriate reagent addition sequence could enable effective amidation of carboxylic acids with tertiary amines under mild conditions.
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Affiliation(s)
- Wong Phakhodee
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Sirilak Wangngae
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Mookda Pattarawarapan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
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27
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Khasiyatullina NR, Mironov VF, Krivolapov DB, Mironova EV, Gnezdilov OI. Synthesis, crystal structure and hydrolysis of novel isomeric cage (P–C/P–O)-phosphoranes on the basis of 4,4,5,5-tetramethyl-2-(2-oxo-1,2-diphenylethoxy)-1,3,2-dioxaphospholane and hexafluoroacetone. RSC Adv 2016. [DOI: 10.1039/c6ra17983e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
New rearrangement of P–C-isomer to P–O-isomer in cage phosphoranes series with a high stereoselectivity (>96%) is revealed.
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Affiliation(s)
| | - Vladimir F. Mironov
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Russian Academy of Sciences
- 420088 Kazan
- Russia
- Kazan (Volga Region) Federal University
| | - Dmitry B. Krivolapov
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Russian Academy of Sciences
- 420088 Kazan
- Russia
| | - Ekaterina V. Mironova
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Russian Academy of Sciences
- 420088 Kazan
- Russia
- Kazan (Volga Region) Federal University
| | - Oleg I. Gnezdilov
- E. K. Zavoisky Kazan Physical-Technical Institute
- Russian Academy of Sciences
- Kazan
- Russia
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28
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Phakhodee W, Duangkamol C, Wangngae S, Pattarawarapan M. Acid anhydrides and the unexpected N,N-diethylamides derived from the reaction of carboxylic acids with Ph3P/I2/Et3N. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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