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Pilathottathil F, Unnikrishnan S, Kaliyamoorthy A. Heteroarylation of Sulfenate Ions In Situ Generated from β-Sulfinyl Esters under Transition-Metal-Free Conditions. J Org Chem 2022; 87:14980-14990. [PMID: 36268936 DOI: 10.1021/acs.joc.2c02153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Heteroaryl sulfoxides are an integral part of several bioactive molecules and pharmaceuticals. We have described a transition-metal-free route for the direct sulfinylation of 2-halobenzothiazoles and 2-halobenzimidazoles using β-sulfinyl esters as the source of the sulfenate ion in the presence of a Brønsted base such as LiOtBu, and the corresponding heteroaryl sulfoxides were isolated in yields of 30 to 94%. Moreover, we hypothesized a plausible concerted nucleophilic aromatic substitution (cSNAr) pathway for the direct incorporation of sulfinyl functionality into the 2-haloheteroarenes.
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Affiliation(s)
- Fathima Pilathottathil
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Sreelakshmi Unnikrishnan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Alagiri Kaliyamoorthy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
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Patra I, Kadhim MM, Kzar HH, Mustafa YF, Jameel HA. Fe 3O 4@SiO 2-(Imine-Thiazole)-Cu(OAc) 2 nanocomposite catalyzed one-pot three-component synthesis of 2-Substituted benzothiazoles using S 8 as sulfur source. J Sulphur Chem 2022. [DOI: 10.1080/17415993.2022.2137413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Indrajit Patra
- Independent Researcher, Ex Research Scholar at NIT Durgapur, West Bengal, India
| | - Mustafa M. Kadhim
- Independent Researcher, Ex Research Scholar at NIT Durgapur, West Bengal, India
- Medical Laboratory Techniques Department, Al-Farahidi University, Baghdad, Iraq
| | - Hamzah H. Kzar
- Independent Researcher, Ex Research Scholar at NIT Durgapur, West Bengal, India
- Veterinary Medicine College, Al-Qasim green University, Al-Qasim, Iraq
| | - Yasser Fakri Mustafa
- Independent Researcher, Ex Research Scholar at NIT Durgapur, West Bengal, India
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, Iraq
| | - Huda Ahmed Jameel
- Independent Researcher, Ex Research Scholar at NIT Durgapur, West Bengal, India
- Al-Mustaqbal University College, Hilla, Iraq
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Benzothiazoles from Condensation of o-Aminothiophenoles with Carboxylic Acids and Their Derivatives: A Review. Molecules 2021; 26:molecules26216518. [PMID: 34770926 PMCID: PMC8587170 DOI: 10.3390/molecules26216518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/14/2021] [Accepted: 10/21/2021] [Indexed: 01/27/2023] Open
Abstract
Nowadays, organic chemists are interested in the field of heterocyclic chemistry due to its use in the synthesis of a great variety of biologically active compounds. Heterocyclic compounds are widely found in nature and are essential for life. Among these, some natural nitrogen containing heterocyclic compounds have been used as chemotherapeutic agents. Their attachment to sugar molecules either as thioglycosides or as nucleosides analogues plays an important role in vital biological processes as well as in synthetic organic chemistry. Molecules containing benzothiazole (BT) nuclei are of this interesting class of compounds because some of them have been found to have a wide variety of biological activities. In this sense, we selected this topic to review and to then summarize the procedures related to the condensation reactions of o-aminothiophenoles (ATPs) as well as their disulfides with carboxylic acids, esters, orthoesters, acyl chlorides, amides, and nitriles. The condensation reactions with carbon dioxide (CO2) are included. Conventional methods with the use of acid and metal catalysts as well as recent green techniques, such as microwave irradiation, the use of ionic liquids, and ultrasound (US) chemistry, which have proven to have many advantages, were found in the review.
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Lan CB, Auclair K. Ammonium Chloride‐Promoted Rapid Synthesis of Monosubstituted Ureas under Microwave Irradiation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chunling Blue Lan
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| | - Karine Auclair
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
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Rao MS, Hussain S. TEMPO-mediated aerobic oxidative synthesis of 2-aryl benzoxazoles via ring-opening of benzoxazoles with benzylamines. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1949476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
| | - Sahid Hussain
- Department of Chemistry, Indian Institute of Technology Patna, Patna, India
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Okabe-Nakahara F, Nagabuchi H, Masumoto E, Maruoka H. Synthesis of Benzimidazoles, Benzoxazoles and Benzothiazole by the Reaction of 2-Amino-4,5-dihydro-3-furancarbonitrile and o-Substituted Anilines in the Catalysis of Trimetylamine Hydrochloride. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Dkhireche N, Galai M, Ouakki M, Rbaa M, Ech-chihbi E, Lakhrissi B, EbnTouhami M. Electrochemical and theoretical study of newly quinoline derivatives as a corrosion inhibitors adsorption onmild steel in phosphoric acid media. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108222] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Affiliation(s)
- Zohreh Nazarian
- Faculty of Chemistry and Petroleum SciencesShahid Beheshti University, District 1 Daneshjou Boulevard 1983969411 Tehran Tehran Province Iran P.O. Box: 1983963113
| | - Minoo Dabiri
- Faculty of Chemistry and Petroleum SciencesShahid Beheshti University, District 1 Daneshjou Boulevard 1983969411 Tehran Tehran Province Iran P.O. Box: 1983963113
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Durcik M, Toplak Ž, Zidar N, Ilaš J, Zega A, Kikelj D, Mašič LP, Tomašič T. Efficient Synthesis of Hydroxy-Substituted 2-Aminobenzo[ d]thiazole-6-carboxylic Acid Derivatives as New Building Blocks in Drug Discovery. ACS OMEGA 2020; 5:8305-8311. [PMID: 32309742 PMCID: PMC7161044 DOI: 10.1021/acsomega.0c00768] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 03/20/2020] [Indexed: 05/05/2023]
Abstract
Benzo[d]thiazole is widely used in synthetic and medicinal chemistry, and it is a component of many compounds and drugs that have several different bioactivities. Herein, we describe an elegant pathway for synthesis of methyl 4- and 5-hydroxy-2-amino-benzo[d]thiazole-6-carboxylates as building blocks that can be substituted at four different positions on the bicycle and thus offer the possibility to thoroughly explore the chemical space around the molecule studied as a ligand for the chosen target. A series of 12 new compounds was prepared using the described methods and Williamson ether synthesis.
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Gan Z, Tian Q, Shang S, Luo W, Dai Z, Wang H, Li D, Wang X, Yuan J. Imidazolium chloride-catalyzed synthesis of benzimidazoles and 2-substituted benzimidazoles from o-phenylenediamines and DMF derivatives. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.11.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gavin JT, Annor-Gyamfi JK, Bunce RA. Quinazolin-4(3 H)-ones and 5,6-Dihydropyrimidin-4(3 H)-ones from β-Aminoamides and Orthoesters. Molecules 2018; 23:molecules23112925. [PMID: 30423947 PMCID: PMC6278269 DOI: 10.3390/molecules23112925] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 11/08/2018] [Indexed: 02/07/2023] Open
Abstract
Quinazolin-4(3H)-ones have been prepared in one step from 2-aminobenzamides and orthoesters in the presence of acetic acid. Simple 2-aminobenzamides were easily converted to the heterocycles by refluxing in absolute ethanol with 1.5 equivalents of the orthoester and 2 equivalents of acetic acid for 12–24 h. Ring-substituted and hindered 2-aminobenzamides as well as cases incorporating an additional basic nitrogen required pressure tube conditions with 3 equivalents each of the orthoester and acetic acid in ethanol at 110 °C for 12–72 h. The reaction was tolerant towards functionality on the benzamide and a range of structures was accessible. Workup involved removal of the solvent under vacuum and either recrystallization from ethanol or trituration with ether-pentane. Several 5,6-dihydropyrimidin-4(3H)-ones were also prepared from 3-amino-2,2-dimethylpropionamide. All products were characterized by melting point, FT-IR, 1H-NMR, 13C-NMR, and HRMS.
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Affiliation(s)
- Joshua T Gavin
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
| | - Joel K Annor-Gyamfi
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
| | - Richard A Bunce
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
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Zhang P, Pan S, Chen W, Liu M, Wu H. Palladium-Catalyzed Sequential Heteroarylation/Acylation Reactions of Iodobenzenes: Synthesis of Functionalized Benzo[d]oxazoles. J Org Chem 2018; 83:3354-3360. [DOI: 10.1021/acs.joc.7b03055] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Pingshun Zhang
- Department of Chemistry, Zhejiang University, Yuquan Campus, Hangzhou 310027, China
| | - Shanfei Pan
- Department of Chemistry, Zhejiang University, Yuquan Campus, Hangzhou 310027, China
| | - Wanzhi Chen
- Department of Chemistry, Zhejiang University, Yuquan Campus, Hangzhou 310027, China
| | - Miaochang Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Huayue Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
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Ndlovu SNP, Ibrahim H, Bala MD. Sterically Hindered N
-Heterocyclic Salts Utilized as Antimicrobial Agents. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Slindile N. P. Ndlovu
- School of Chemistry and Physics; University of KwaZulu-Natal; Private Bag X54001 Durban 4000 South Africa
| | - Halliru Ibrahim
- School of Chemistry and Physics; University of KwaZulu-Natal; Private Bag X54001 Durban 4000 South Africa
| | - Muhammad D. Bala
- School of Chemistry and Physics; University of KwaZulu-Natal; Private Bag X54001 Durban 4000 South Africa
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Al-Shareef HF, Elhady HA, Aboellil AH, Hussein EM. Ammonium chloride catalyzed synthesis of novel Schiff bases from spiro[indoline-3,4'-pyran]-3'-carbonitriles and evaluation of their antimicrobial and anti-breast cancer activities. SPRINGERPLUS 2016; 5:887. [PMID: 27386335 PMCID: PMC4920782 DOI: 10.1186/s40064-016-2458-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 05/27/2016] [Indexed: 11/24/2022]
Abstract
Background Indolinone and spiro-indoline derivatives have been employed in the preparation of different important therapeutic compounds required for treatment of anticonvulsants, antibacterial, Antitubercular, and anticancer activities. Schiff bases have been found to possess various pharmacological activities such as antitubercular, plant growth inhibiting, insecticsidal, central nerve system depressant, antibacterial, anticancer, anti-inflammatory, and antimicrobial. Mannich bases have a variety of biological activities such as antibacterial and antifungal activities. Results In this study, a green, rapid and efficient protocol for the synthesis of a new series of Schiff bases from spiro[indoline-3,4′-pyran]-3′-carbonitrile derivatives using ammonium chloride as a very inexpensive and readily available reagent. The prepared compounds were assessed in vitro for their antimicrobial activity. Also, the cytotoxic activity of the prepared compounds was assessed in vitro against human cells line MCF7 breast cancer. Conclusion Good activity was distinguished for Schiff bases from spiro[indoline-3,4′-pyran]-3′-carbonitriles, with some members recorded higher antimicrobial and anti-breast cancer activities.Novel Schiff bases from spiro[indoline-3,4′-pyran]-3′-carbonitriles ![]()
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Affiliation(s)
- Hossa F Al-Shareef
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Heba A Elhady
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia ; Department of Chemistry, Faculty of Science (Girl's), Al-Azhar University, Cairo, Egypt
| | - Amany H Aboellil
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt
| | - Essam M Hussein
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia ; Department of Chemistry, Faculty of Science, Assiut University, Assiut, 71516 Egypt
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Gnanasekaran KK, Muddala NP, Bunce RA. Benzo[4,5]imidazo[2,1-b]quinazolin-12-ones and benzo[4,5]imidazo[1,2-a]pyrido[2,3-d]pyrimidin-5-ones by a sequential N-acylation–SNAr reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.11.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hussein EM. Ammonium chloride-catalyzed four-component sonochemical synthesis of novel hexahydroquinolines bearing a sulfonamide moiety. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015010091] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hasanpour M, Eshghi H, Bakavoli M, Mirzaeia M. A Novel Ionic Liquid Based on Imidazolium Cation as an Efficient and Reusable Catalyst for the One-pot Synthesis of Benzoxazoles, Benzthiazoles, Benzimidazoles and 2-Arylsubstituted Benzimidazoles. J CHIN CHEM SOC-TAIP 2015. [DOI: 10.1002/jccs.201400372] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Muddala NP, Nammalwar B, Bunce RA. Expeditious synthesis of (±)-diethyl 2-alkyl- and 2-aryl-(3-oxoisoindolin-1-yl)phosphonates catalysed by OSU-6. RSC Adv 2015. [DOI: 10.1039/c5ra02307f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient synthesis of (±)-diethyl 2-alkyl- and 2-aryl-(3-oxoisoindolin-1-yl)phosphonates is reported via condensation of 2-carboxybenzaldehyde with an amine and triethyl phosphite using OSU-6 as the catalyst.
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Zhang J, Huang J, Song Z, Guo L, Cai W, Wang Y, Zhen X, Zhang A. Structural manipulation on the catecholic fragment of dopamine D(1) receptor agonist 1-phenyl-N-methyl-benzazepines. Eur J Med Chem 2014; 85:16-26. [PMID: 25076379 DOI: 10.1016/j.ejmech.2014.07.059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 07/11/2014] [Accepted: 07/18/2014] [Indexed: 11/29/2022]
Abstract
A series of new benzazepines with modification on the catecholic fragment were designed. The 8-hydroxyl group, other than the 7-hydroxyl was confirmed crucial to the interaction with the dopamine D1 receptor. Subsequent replacement of the 7-hydroxyl with benzylamino groups was found tolerable. 7-(m-Chlorophenyl)methylamino- and 7-(m- or o-tolyl)methylamino-substituted benzazepines 13b-d displayed Ki values of 270-370 nM at the D1 receptor, which were slightly more potent than that of parent compound 1. In addition, 7-(arylmethyl)amino-benzazepines 13a-c were found possessing high binding affinities less than 10 nM at the 5-HT2A receptor. Among them, the non-substituted 7-benzylamino analogue 13a was the most potent showing a Ki values of 4.5 nM at the 5-HT2A receptor and a 5-HT2A/D1 selectivity of 147.
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Affiliation(s)
- Jing Zhang
- CAS Key Laboratory of Receptor Research, and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences (CAS), Shanghai 201203, China
| | - Jiye Huang
- Department of Pharmacology, Shanghai Institute of Materia Medica, CAS, China
| | - Zilan Song
- CAS Key Laboratory of Receptor Research, and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences (CAS), Shanghai 201203, China
| | - Lin Guo
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Wenxian Cai
- Department of Pharmacology, Shanghai Institute of Materia Medica, CAS, China
| | - Yun Wang
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Xuechu Zhen
- Department of Pharmacology, Shanghai Institute of Materia Medica, CAS, China; Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research, and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences (CAS), Shanghai 201203, China.
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Nammalwar B, Murie M, Fortenberry C, Bunce RA. Quinoline- and 1,8-naphthyridine-3-carboxylic acids using a self-catalyzed Friedländer approach. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nammalwar B, Fortenberry C, Bunce RA. Synthesis of α-aminonitriles under mild catalytic, metal-free conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.11.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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