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Duan YG, Chen YH, Lu ZH, Huang R, Yan SJ. An Environmentally Benign Multicomponent Cascade Reaction of 3-Formylchromones, 2-Naphthols, and Heterocyclic Ketal Aminals: Site-Selective Synthesis of Functionalized Morphan Derivatives. J Org Chem 2022; 87:8562-8575. [PMID: 35699234 DOI: 10.1021/acs.joc.2c00695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel protocol has been developed for the preparation of highly functionalized 2-azabicyclo[3.3.1]nonane (morphan) derivatives by the interesting three-component cascade reaction of 3-formylchromones, 2-naphthol, and heterocyclic ketal aminals (HKAs) in the ionic liquid [BMIM]PF6 promoted by the organic base Et3N. A complex cascade reaction is required, which includes a 1,2-addition, two Michael reactions, two tautomerizations, and an N-alkylation accompanied by a ring-opening reaction and involving the cleavage of one C-O bond and the formation of four bonds (one C-N bond, one C-O bond, and two C-C bonds). As a result, functionalized morphans (5 and 6) bearing naphthalene-structured skeletons were prepared by simple heating of a mixture of 3-formylchromones, 2-naphthols, and HKAs in the environmentally friendly ionic liquid [BMIM]PF6. This protocol can be used in the synthesis of various morphans and is suitable for combinatorial and parallel syntheses of natural-like morphan derivatives. This approach has several advantages such as the use of an environmentally friendly solvent, simple and practical operation (multicomponent one-pot reaction), and satisfactory yields (65-88%).
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Affiliation(s)
- Ying-Gang Duan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Yi-Hua Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Zi-Han Lu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Rong Huang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
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Ren LQ, He YS, Yang YT, Li ZF, Xue ZY, Li QH, Liu TL. Chlorocyclization/cycloreversion of allylic alcohols to vinyl chlorides. Org Chem Front 2021. [DOI: 10.1039/d1qo01218e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unprecedented chlorination of allylic alcohols: a simple mix-and-go procedure for the cyclization/cycloreversion of secondary and tertiary allylic alcohols with chloronium ions under mild conditions and practical access to remote carbonyl vinyl chlorides.
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Affiliation(s)
- Li-Qing Ren
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu-Shuai He
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu-Ting Yang
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Zhao-Feng Li
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Zhi-Yong Xue
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
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Wang YN, Sun GX, Qi G. β-Amino functionalization of cinnamic Weinreb amides in ionic liquid. Beilstein J Org Chem 2016; 12:2372-2377. [PMID: 28144305 PMCID: PMC5238596 DOI: 10.3762/bjoc.12.231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/24/2016] [Indexed: 11/23/2022] Open
Abstract
2-Ns-Protected β-amino Weinreb amides were synthesized by aminochlorination of α,β-unsaturated Weinreb amides in an ionic liquid, 1-n-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([BMIM][NTf2]). Processed without the use of metal catalysts or the need of an inert gas atmosphere, the presented process can be readily performed as a one-pot synthesis at room temperature. Moreover, the preparation has the distinct advantages of the use of 2-NsNCl2 as an inexpensive and stable nitrogen/halogen source and the ionic liquid as a recyclable reaction media. Nine examples were examined, and modest to good isolated chemical yields (40–83%) were obtained.
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Affiliation(s)
- Yi-Ning Wang
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
| | - Guo-Xiang Sun
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
| | - Gang Qi
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
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Rajbongshi KK, Saikia I, Chanu LD, Roy S, Phukan P. A Metal-Free Protocol for Aminofunctionalization of Olefins Using TsNBr2. J Org Chem 2016; 81:5423-32. [PMID: 27269517 DOI: 10.1021/acs.joc.6b00785] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
N,N-Dibromo-p-toluene sulfonamide (TsNBr2) has been found to be an effective reagent for various aminofunctionalization reactions. This reagent behaves both as an electrophilic bromine source as well as amine to react with olefins under different conditions to yield aminoether, imidazoline, diamine and amino bromine. The reaction proceeds rapidly under mild conditions with high regioselectivity. Olefins react with TsNBr2 in moist THF to form δ-amino ether at room temperature. Treatment of TsNBr2 with olefin in MeCN at room temperature produced imidazoline in high yield. Further modification of the reaction condition resulted in the development of a one-step procedure for the synthesis of N-acetyl,N'-tosyl diamine derivatives directly from olefin. When the olefin was treated with 2.4 mol equiv of TsNBr2 in the presence of K2CO3, N,N'-ditosyl diamine derivative was obtained in moderate yield. Instantaneous formation of aminobromine was observed when an olefin was treated with the reagent in dry CH2Cl2 at room temperature.
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Affiliation(s)
| | | | | | - Subhasish Roy
- Department of Chemistry, Gauhati University , Guwahati 781014, Assam, India
| | - Prodeep Phukan
- Department of Chemistry, Gauhati University , Guwahati 781014, Assam, India
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Chen Z, Xia W, Liu D, Liu Y, Du M, Cao C. NaHCO3-Catalyzed Hihgly Regiospecific Aminobromination of ß,ß-Dicyanostyrene Derivatives with 1,3-Dibromo-5,5-dimethylhydantoin (DBDMH). J CHIN CHEM SOC-TAIP 2015. [DOI: 10.1002/jccs.201400526] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Aminobromination of ethyl α-cyanocinnamate derivatives with 1,3-dibromo-5,5-dimethylhydantoin(DBDMH) as nitrogen and halogen sources. Chem Res Chin Univ 2015. [DOI: 10.1007/s40242-015-4341-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Affiliation(s)
- Sherry R. Chemler
- Department of Chemistry, The State University of New York at Buffalo, Buffalo,
New York, United States
| | - Michael T. Bovino
- Department of Chemistry, The State University of New York at Buffalo, Buffalo,
New York, United States
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Broggini G, Barbera V, Beccalli EM, Borsini E, Galli S, Lanza G, Zecchi G. Palladium(II)/Copper Halide/Solvent Combination for Selective Intramolecular Domino Reactions of Indolecarboxylic Acid Allylamides: An Unprecedented Arylation/Esterification Sequence. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100614] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gianluigi Broggini
- Dipartimento di Scienze Chimiche e Ambientali, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy, Fax: (+39)‐(0)31‐238‐6449; phone: (+39)‐(0)31‐238‐6444
| | - Vincenzina Barbera
- Dipartimento di Scienze del Farmaco, Università di Catania, viale Andrea Doria 6, 95125 Catania, Italy
| | - Egle M. Beccalli
- DISMAB, Sezione di Chimica Organica “A. Marchesini” Università di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Elena Borsini
- DISMAB, Sezione di Chimica Organica “A. Marchesini” Università di Milano, Via Venezian 21, 20133 Milano, Italy
| | - Simona Galli
- Dipartimento di Scienze Chimiche e Ambientali, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy, Fax: (+39)‐(0)31‐238‐6449; phone: (+39)‐(0)31‐238‐6444
| | - Giuseppe Lanza
- Dipartimento di Scienze del Farmaco, Università di Catania, viale Andrea Doria 6, 95125 Catania, Italy
| | - Gaetano Zecchi
- Dipartimento di Scienze Chimiche e Ambientali, Università dell'Insubria, via Valleggio 11, 22100 Como, Italy, Fax: (+39)‐(0)31‐238‐6449; phone: (+39)‐(0)31‐238‐6444
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Cai Y, Liu X, Li J, Chen W, Wang W, Lin L, Feng X. Asymmetric Iodoamination of Chalcones and 4-Aryl-4-oxobutenoates Catalyzed by a Complex Based on Scandium(III) and a N,N′-Dioxide Ligand. Chemistry 2011; 17:14916-21. [DOI: 10.1002/chem.201102453] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Indexed: 11/05/2022]
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Chen ZG, Zhao PF, Wang Y. Aminobromination of β-Nitrostyrene Derivatives with N,N-Dibromourethane as the Aminobrominating Reagent. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100751] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhou L, Chen J, Tan CK, Yeung YY. Enantioselective Bromoaminocyclization Using Amino–Thiocarbamate Catalysts. J Am Chem Soc 2011; 133:9164-7. [DOI: 10.1021/ja201627h] [Citation(s) in RCA: 182] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ling Zhou
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Jie Chen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Chong Kiat Tan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Ying-Yeung Yeung
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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Cai Y, Liu X, Jiang J, Chen W, Lin L, Feng X. Catalytic asymmetric chloroamination reaction of α,β-unsaturated γ-keto esters and chalcones. J Am Chem Soc 2011; 133:5636-9. [PMID: 21443187 DOI: 10.1021/ja110668c] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Highly efficient catalytic chloroamination reaction of α,β-unsaturated γ-keto esters and chalcones has been developed via a chloronium-based mechanism to deliver anti-regioselective vicinal chloroamines instead of the aziridinium intermediates delivered aminochlorides. The combination of TsNCl(2) and TsNH(2) as reagents made the transformation highly efficient, delivering the γ-carbonyl-β-chloro-α-amino acid derivatives and α-chloro-β-amino-ketone derivatives in nearly quantitative yields with up to 99% ee and 99:1 dr under 0.05-0.5 mol % catalyst loading. TsNHCl was demonstrated to act as the key reactive species to form a bridged chloronium ion intermediate in the presence of a chiral scandium complex. The method might provide useful information for further realization of other haloamination reactions.
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Affiliation(s)
- Yunfei Cai
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
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Sun H, Zhi SJ, Han JL, Li G, Pan Y. Highly regio- and stereoselective synthesis of alpha-(N-alkyl-N-p-toluenesulfonyl)-beta-bromo-ketones via Ni(OAc)2-catalyzed aminobromination of chalcones. Chem Biol Drug Des 2011; 75:269-76. [PMID: 20331646 DOI: 10.1111/j.1747-0285.2010.00938.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The combinations of N-methyl-p-toluenesulfonamide/NBS and N-ethyl-p-toluenesulfonamide/NBS were found to be good nitrogen/halogen resources for the aminohalogenation of alpha,beta-unsaturated ketones in the presence of Ni(OAc)(2) as the catalyst for the synthesis of vicinal haloamino ketone derivatives. The introduction of N-alkyl groups to the nitrogen resources resulted in excellent regio- and stereoselectivity for both electron-donating and electron-withdrawing group-attached unsaturated ketone substrates. The structure of the resulting products has been unambiguously confirmed by X-ray crystal structure analysis.
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Affiliation(s)
- Hao Sun
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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Rezende P, Paioti PHS, Coelho F. Diastereoselective Approach to Substituted Oxazolidinones from Morita–Baylis–Hillman Adducts. SYNTHETIC COMMUN 2010. [DOI: 10.1080/00397910903534023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Patrícia Rezende
- a Laboratory of Synthesis of Natural Products and Drugs, Department of Organic Chemistry , Chemistry Institute, University of Campinas , Campinas, Brazil
| | - Paulo H. S. Paioti
- a Laboratory of Synthesis of Natural Products and Drugs, Department of Organic Chemistry , Chemistry Institute, University of Campinas , Campinas, Brazil
| | - Fernando Coelho
- a Laboratory of Synthesis of Natural Products and Drugs, Department of Organic Chemistry , Chemistry Institute, University of Campinas , Campinas, Brazil
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Chen ZG, Wang Y, Wei JF, Zhao PF, Shi XY. K3PO4-Catalyzed Regiospecific Aminobromination of β-Nitrostyrene Derivatives with N-Bromoacetamide as Aminobrominating Agent. J Org Chem 2010; 75:2085-8. [DOI: 10.1021/jo9026879] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chen ZG, Wei JF, Wang MZ, Zhou LY, Zhang CJ, Shi XY. Aluminium Powder-Catalyzed Regio- and Stereoselective Aminobromination of α,β-Unsaturated Carbonyl Compounds and Simple Olefins with thep-Toluenesulfonamide/N-Bromosuccinimide (TsNH2-NBS) System. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900343] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Valdez SC, Leighton JL. Tandem Asymmetric Aza-Darzens/Ring-Opening Reactions: Dual Functionality from the Silane Lewis Acid. J Am Chem Soc 2009; 131:14638-9. [DOI: 10.1021/ja9066354] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Corey Valdez
- Department of Chemistry, Columbia University, New York, New York 10027
| | - James L. Leighton
- Department of Chemistry, Columbia University, New York, New York 10027
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Wu XL, Wang GW. Aminohalogenation of Electron-Deficient Olefins Promoted by Hypervalent Iodine Compounds. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800842] [Citation(s) in RCA: 29] [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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Wu XL, Xia JJ, Wang GW. Aminobromination of olefins with TsNH2and NBS as the nitrogen and bromine sources mediated by hypervalent iodine in a ball mill. Org Biomol Chem 2008; 6:548-53. [DOI: 10.1039/b717333d] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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