1
|
Anderson EA, Garry OL, Mansfield SJ. Regio- and Stereoselective Addition of Brønsted Acids to Yndiamides: Synthesis of N,O,N- and N,S,N-Trisubstituted Ketene Acetals. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1638-5783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
AbstractYndiamides, N,N-disubstituted alkynes, are versatile building blocks for the synthesis of nitrogen-containing organic molecules. Unlike ynamides, relatives that are inherently polarized by a single nitrogen substituent, their pseudo-symmetric nature renders regioselective reactions challenging. Here we report investigations into the regioselective addition of Brønsted acids to non-symmetric yndiamides, a reaction that delivers N,O,N- and N,S,N-trisubstituted ketene acetals with excellent regio- and stereoselectivity.
Collapse
|
2
|
Sambaiah M, Thota P, Kottawar SS, Yennam S, Shiva Kumar K, Behera M. Synthesis of New Lansiumamide A/Alatamide (cis‐Isomer) Based Unnatural α‐Amino Acid Derivatives via the Suzuki‐Miyaura Cross Coupling as Key Step. ChemistrySelect 2021. [DOI: 10.1002/slct.202101093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- M. Sambaiah
- Medicinal Chemistry Laboratory (Synthesis) GVK Biosciences Pvt. Ltd 125 & 126, IDA Mallapur Hyderabad Telangana India 500 076
- Department of Chemistry GITAM (DEEMED TO BE UNIVERSITY) GITAM School of Science Hyderabad campus Vill: Rudraram, Mdl: Patancheru, Dist: Sangareddy Telangana India 502329
| | - PradeepKumar Thota
- Medicinal Chemistry Laboratory (Synthesis) GVK Biosciences Pvt. Ltd 125 & 126, IDA Mallapur Hyderabad Telangana India 500 076
| | - Shrinivas S. Kottawar
- Medicinal Chemistry Laboratory (Synthesis) GVK Biosciences Pvt. Ltd 125 & 126, IDA Mallapur Hyderabad Telangana India 500 076
| | - Satyanarayana Yennam
- Medicinal Chemistry Laboratory (Synthesis) GVK Biosciences Pvt. Ltd 125 & 126, IDA Mallapur Hyderabad Telangana India 500 076
| | - K. Shiva Kumar
- Department of Chemistry GITAM (DEEMED TO BE UNIVERSITY) GITAM School of Science Hyderabad campus Vill: Rudraram, Mdl: Patancheru, Dist: Sangareddy Telangana India 502329
| | - Manoranjan Behera
- Medicinal Chemistry Laboratory (Synthesis) GVK Biosciences Pvt. Ltd 125 & 126, IDA Mallapur Hyderabad Telangana India 500 076
| |
Collapse
|
3
|
Facile Fabrication of Glycosylpyridyl-Triazole@Nickel Nanoparticles as Recyclable Nanocatalyst for Acylation of Amines in Water. Catalysts 2020. [DOI: 10.3390/catal10020230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this report, novel glycosylpyridyl-triazole@nickel nanoparticles (GPT-Ni) were successfully prepared via click chemistry and were fully characterized by various spectroscopy measurements. The as-prepared catalysts could be used as a recyclable catalyst for the catalytic acylation of amines by employing N,N-dimethylacetamide (DMA), N,N-dimethylpropionamide (DMP), and N,N-dimethylformamide (DMF) as acylation reagents in water, providing the corresponding amides in good yields. The practicability of this methodology is highlighted by the good recyclability of the catalyst. A unique mechanism was proposed for the catalytic process.
Collapse
|
4
|
Chen J, Jia J, Guo Z, Zhang J, Xie M. NH4I-promoted N-acylation of amines via the transamidation of DMF and DMA under metal-free conditions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
5
|
Wenholz DS, Bhadbhade M, Kandemir H, Ho J, Kumar N, Black DS. Substituent effects in solid-state assembly of activated benzotriazoles. CrystEngComm 2019. [DOI: 10.1039/c8ce01757c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Aromatic donor–acceptor stacking involving electron-rich π-donors and electron-deficient π-acceptors has been utilized in a broad spectrum of diverse applications to great effect.
Collapse
Affiliation(s)
| | | | - Hakan Kandemir
- School of Chemistry
- UNSW Sydney
- Australia
- Department of Chemistry
- Faculty of Art and Science
| | | | | | | |
Collapse
|
6
|
Ma J, Zhang J, Zhou X, Wang J, Gong H. N-formylation of amine using graphene oxide as a sole recyclable metal-free carbocatalyst. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1471-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
7
|
Boissarie P, Bélanger G. Short Approach toward the Nonracemic A,B,E Tricyclic Core of Calyciphylline B-Type Alkaloids. Org Lett 2017; 19:3739-3742. [DOI: 10.1021/acs.orglett.7b01566] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patrick Boissarie
- Département de Chimie, Université de Sherbrooke, 2500 boulevard de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Guillaume Bélanger
- Département de Chimie, Université de Sherbrooke, 2500 boulevard de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| |
Collapse
|
8
|
Hauduc C, Bélanger G. General Approach toward Aspidospermatan-Type Alkaloids Using One-Pot Vilsmeier–Haack Cyclization and Azomethine Ylide Cycloaddition. J Org Chem 2017; 82:4703-4712. [DOI: 10.1021/acs.joc.7b00345] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Clémence Hauduc
- Département de Chimie, Université de Sherbrooke 2500 boulevard Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Guillaume Bélanger
- Département de Chimie, Université de Sherbrooke 2500 boulevard Université, Sherbrooke, Québec J1K 2R1, Canada
| |
Collapse
|
9
|
Patre RE, Mal S, Nilkanth PR, Ghorai SK, Deshpande SH, El Qacemi M, Smejkal T, Pal S, Manjunath BN. First report on bio-catalytic N-formylation of amines using ethyl formate. Chem Commun (Camb) 2017; 53:2382-2385. [DOI: 10.1039/c6cc07679c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bio-catalyzed N-formylation reaction of different amines has been developed using ethyl formate as a formylating agent.
Collapse
Affiliation(s)
| | - Sanjib Mal
- Syngenta Biosciences Pvt. Ltd
- Santa Monica Works
- India
| | | | | | | | | | - Tomas Smejkal
- Syngenta Crop Protection Muenchwilen AG
- CH-4332 Stein
- Switzerland
| | - Sitaram Pal
- Syngenta Biosciences Pvt. Ltd
- Santa Monica Works
- India
| | | |
Collapse
|
10
|
Boudreault J, Lévesque F, Bélanger G. Studies toward Total Synthesis of (±)-Caldaphnidine C via One-Pot Sequential Intramolecular Vilsmeier–Haack and Azomethine Ylide 1,3-Dipolar Cycloaddition. J Org Chem 2016; 81:9247-9268. [DOI: 10.1021/acs.joc.6b01835] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan Boudreault
- Département de Chimie, Université de Sherbrooke, 2500 boulevard
Université, Sherbrooke, Québec, J1K 2R1, Canada
| | - François Lévesque
- Département de Chimie, Université de Sherbrooke, 2500 boulevard
Université, Sherbrooke, Québec, J1K 2R1, Canada
| | - Guillaume Bélanger
- Département de Chimie, Université de Sherbrooke, 2500 boulevard
Université, Sherbrooke, Québec, J1K 2R1, Canada
| |
Collapse
|
11
|
Sambaiah M, Gudipati R, Shiva Kumar K, Yennam S, Behera M. An efficient method for the preparation of N-formyl-imide via amidine using propylphosphonic anhydride (T3P®). Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
12
|
Wang Y, Zhang J, Liu J, Zhang C, Zhang Z, Xu J, Xu S, Wang F, Wang F. C-N and N-H Bond Metathesis Reactions Mediated by Carbon Dioxide. CHEMSUSCHEM 2015; 8:2066-2072. [PMID: 26043443 DOI: 10.1002/cssc.201500318] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 04/03/2015] [Indexed: 06/04/2023]
Abstract
Herein, we report CO2 -mediated metathesis reactions between amines and DMF to synthesize formamides. More than 20 amines, including primary, secondary, aromatic, and heterocyclic amines, diamines, and amino acids, are converted to the corresponding formamides with good-to-excellent conversions and selectivities under mild conditions. This strategy employs CO2 as a mediator to activate the amine under metal-free conditions. The experimental data and in situ NMR and attenuated total reflectance IR spectroscopy measurements support the formation of the N-carbamic acid as an intermediate through the weak acid-base interaction between CO2 and the amine. The metathesis reaction is driven by the formation of a stable carbamate, and a reaction mechanism is proposed.
Collapse
Affiliation(s)
- Yehong Wang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China)
| | - Jian Zhang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China)
| | - Jing Liu
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China)
| | - Chaofeng Zhang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China)
- University of the Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049 (PR China)
| | - Zhixin Zhang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China)
| | - Jie Xu
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China).
| | - Shutao Xu
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China)
| | - Fangjun Wang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China)
| | - Feng Wang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (PR China).
| |
Collapse
|
13
|
Pasqua AE, Ferrari FD, Crawford JJ, Marquez R. Total synthesis of lansiumamides A and B and alatamide. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
14
|
Bélanger G, Dupuis M, Larouche-Gauthier R. Asymmetric total synthesis of (+)-virosine A via sequential nucleophilic cyclizations onto an activated formamide. J Org Chem 2012; 77:3215-21. [PMID: 22390172 DOI: 10.1021/jo202651t] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first synthesis of tetracyclic alkaloid virosine A is reported. The natural alkaloid was prepared in only 13 steps, in an enantioenriched form. The azabicyclo[2.2.2]octane core was efficiently assembled using a key Vilsmeier-Haack and Mannich cyclizations sequence performed in one pot.
Collapse
Affiliation(s)
- Guillaume Bélanger
- Département de Chimie, Université de Sherbrooke, 2500 boulevard Université, Sherbrooke, Québec J1K 2R1, Canada.
| | | | | |
Collapse
|
15
|
Bélanger G, Boudreault J, Lévesque F. Synthesis of the Tetracyclic Core of Daphnilactone B-Type and Yuzurimine-Type Alkaloids. Org Lett 2011; 13:6204-7. [DOI: 10.1021/ol202629d] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Guillaume Bélanger
- Département de Chimie, Université de Sherbrooke, 2500 Boulevard de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Jonathan Boudreault
- Département de Chimie, Université de Sherbrooke, 2500 Boulevard de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - François Lévesque
- Département de Chimie, Université de Sherbrooke, 2500 Boulevard de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| |
Collapse
|
16
|
Pasqua AE, Thomas LH, Crawford JJ, Marquez R. Regioselective synthesis of β-iodo-enamides and β-yn-enamides. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.07.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|