1
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Das S, Mondal S, Midya SP, Mondal S, Ghosh E, Ghosh P. Base-Promoted Tandem Pathway for Keto-Amides: Visible Light-Mediated Room-Temperature Amidation Using Molecular Oxygen as an Oxidant. J Org Chem 2023; 88:14847-14859. [PMID: 37867455 DOI: 10.1021/acs.joc.3c00686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Herein, we report metal- and photocatalyst-free room-temperature amidation for α-ketoamide synthesis from feedstock phenacyl bromides and amines using molecular oxygen as an oxidant as well as a source of oxygen in the amide segment. Visible light-mediated base-promoted one-pot sequential C-N/C═N/C═O bond formation takes place in a tandem manner to afford the desired product. Functional group tolerance (benzylic alcohol, keto, cyano, nitro, halo, etc.), a broad substrate scope, and gram-scale synthesis make this synthetic methodology more attractive. We have observed that electron-rich aromatic amines, aliphatic amines, and phenacyl bromide derivatives proceeded the present transformation with marginally superior reactivity in comparison to electron-deficient aromatic amines and phenacyl bromide derivatives. Moreover, several control experiments, in situ isolation of secondary amine and imine as key intermediates, and 18O-labeling experiments provide complete insight into the mechanism of the tandem pathway.
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Affiliation(s)
- Suman Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Soumya Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Siba P Midya
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Subal Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Eliza Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Pradyut Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
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2
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Pareek A, Singh G, Yaragorla S. Synthetic Applications of Ambiphilic C‐Acylimines in Organic Synthesis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Garima Singh
- University of Hyderabad School of Chemistry Chemistry INDIA
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3
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Ma J, Cui X, Xu J, Tan Y, Wang Y, Wang X, Li Y. One-Pot Synthesis of α-Ketoamides from α-Keto Acids and Amines Using Ynamides as Coupling Reagents. J Org Chem 2022; 87:3661-3667. [PMID: 35029390 DOI: 10.1021/acs.joc.1c02453] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A one-pot strategy for α-keto amide bond formation have been developed by using ynamides as coupling reagents under extremely mild reaction conditions. Diversely structural α-ketoamides were afforded in up to 98% yield for 36 examples. This reaction features advantages such as practical coupling procedure, wide functional group tolerance, and extremely mild conditions and has potential applications in synthetic and medicinal chemistry.
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Affiliation(s)
- Jianting Ma
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xue Cui
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Junyu Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yinfeng Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yan Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xuesong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Youbin Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
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4
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Baranwal S, Gupta S, Kandasamy J. Selenium Dioxide Promoted
α
‐Keto
N
‐Acylation of Sulfoximines Under Mild Reaction Conditions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Siddharth Baranwal
- Department of Chemistry Indian Institute of Technology (BHU)-Varanasi Uttar Pradesh 221005 India
| | - Surabhi Gupta
- Department of Chemistry Indian Institute of Technology (BHU)-Varanasi Uttar Pradesh 221005 India
| | - Jeyakumar Kandasamy
- Department of Chemistry Indian Institute of Technology (BHU)-Varanasi Uttar Pradesh 221005 India
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5
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Wang C, Ma D, Tu Y, Bolm C. Use of Hypervalent Iodine Reagents in Visible Light-Promoted α-Ketoacylations of Sulfoximines with Aryl Alkynes. Org Lett 2020; 22:8937-8940. [DOI: 10.1021/acs.orglett.0c03338] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Chenyang Wang
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Ding Ma
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Yongliang Tu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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6
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7
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Xie D, He W, Xiao J, Wu Y, Guo Y, Liu Q, Guo C. Direct synthesis of 2-oxo-acetamidines from methyl ketones, aromatic amines and DMF via copper-catalyzed C(sp 3)-H amidination. RSC Adv 2019; 9:7203-7209. [PMID: 35519951 PMCID: PMC9061129 DOI: 10.1039/c9ra00616h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 02/25/2019] [Indexed: 12/18/2022] Open
Abstract
A convenient method for the synthesis of 2-oxo-acetamidines from methyl ketones using aromatic amines and DMF as nitrogen sources is reported via copper-catalyzed C(sp3)-H amidination. Various methyl ketones react readily with aromatic amines and DMF, producing 2-oxo-acetamidines in yields of 47 to 92%. This protocol features the simultaneous formation of C-N and C[double bond, length as m-dash]N bonds using DMF and aromatic amines as two different nitrogen sources. It thus provides an efficient approach to construct acyclic amidines via three C(sp3)-H bond amidination. Based on the preliminary experiments, a plausible mechanism of this transformation is disclosed.
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Affiliation(s)
- Dianke Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Wei He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Jiang Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Yao Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Yongjia Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Qiang Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Cancheng Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
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8
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Zhou C, Diao P, Li X, Ge Y, Guo C. Facile photochemical synthesis of α-ketoamides and quinoxalines from amines and benzoylacetonitrile under mild conditions. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.06.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Mishra AA, Bhanage BM. Zirconium-MOF-catalysed selective synthesis of α-hydroxyamide via the transfer hydrogenation of α-ketoamide. NEW J CHEM 2019. [DOI: 10.1039/c9nj00900k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports the synthesis of α-hydroxy amide and its derivatives using zirconium-based metal–organic frameworks (Zr-MOFs).
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Affiliation(s)
- Ashish A. Mishra
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai 400019
- India
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10
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Bhajammanavar V, Mallik S, Baidya M. Oxidative cross-dehydrogenative [2 + 3] annulation of α-amino ketones with α-keto esters: concise synthesis of clausenamide analogues. Org Biomol Chem 2019; 17:1740-1743. [DOI: 10.1039/c8ob02369g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A one-pot oxidative cross-dehydrogenative [2 + 3] annulation of α-amino ketones with α-keto esters at room temperature is reported.
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Affiliation(s)
- Vinod Bhajammanavar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
| | - Sumitava Mallik
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
| | - Mahiuddin Baidya
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
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11
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Monga A, Bagchi S, Sharma A. DABCO-Catalysed Amidation under Assistance of Aerial Oxidation: Access to α-ketoamides. ChemistrySelect 2018. [DOI: 10.1002/slct.201801981] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Aparna Monga
- Department of Chemistry; Indian Institute of Technology Roorkee; Indian Institute of Technology Roorkee; Roorkee- 247667
| | - Sourav Bagchi
- Department of Chemistry; Indian Institute of Technology Roorkee; Indian Institute of Technology Roorkee; Roorkee- 247667
| | - Anuj Sharma
- Department of Chemistry; Indian Institute of Technology Roorkee; Indian Institute of Technology Roorkee; Roorkee- 247667
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12
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Ni K, Meng LG, Wang K, Wang L. Visible-Light-Promoted Oxidative Amidation of Bromoalkynes with Anilines: An Approach to α-Ketoamides. Org Lett 2018; 20:2245-2248. [PMID: 29600860 DOI: 10.1021/acs.orglett.8b00586] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A convenient and practical synthetic route to α-ketoamides from bromoalkynes and anilines through phototriggered organic transformations via a C-N cross-coupling and an oxidation of C≡C was developed. The reaction could be furnished without an external photocatalyst at ambient conditions, and a wide range of α-ketoamides were obtained in good yields.
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Affiliation(s)
- Ke Ni
- Department of Chemistry , Huaibei Normal University , Huaibei , Anhui 235000 , P. R. China
| | - Ling-Guo Meng
- Department of Chemistry , Huaibei Normal University , Huaibei , Anhui 235000 , P. R. China
| | - Kuai Wang
- Department of Chemistry , Huaibei Normal University , Huaibei , Anhui 235000 , P. R. China
| | - Lei Wang
- Department of Chemistry , Huaibei Normal University , Huaibei , Anhui 235000 , P. R. China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Shanghai 200032 , P. R. China
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13
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Mishra AA, Bhanage BM. Nanoceria‐Catalyzed Selective Synthesis of α‐Hydroxy Amides through the Reduction of an Unusual Class of α‐Keto Amides. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ashish A. Mishra
- Department of ChemistryInstitute of Chemical Technology Matunga Mumbai 400019 India
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14
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Baleeva NS, Levina EA, Baranov MS. Synthesis of 2-arylidene-6,7-dihydroimidazo[1,2-a]pyrazine-3,8(2H,5H)-diones by oxidation of 4-arylidene-2-methyl-1H-imidazol-5(4H)-ones with selenium dioxide. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2149-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Khan S, Ahmed QN. 2-Oxo-Driven Coupling Reactions of 2-Oxo Aldehydes/2-Oxo Iminium Ions and Hydroperoxides at Room Temperature. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600795] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shahnawaz Khan
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (CSIR); Canal Road 180001 Jammu India
- Academy of Scientific and Innovative Research; Canal Road 180001 Jammu India
| | - Qazi Naveed Ahmed
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (CSIR); Canal Road 180001 Jammu India
- Academy of Scientific and Innovative Research; Canal Road 180001 Jammu India
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16
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Albert-Soriano M, Pastor IM. Metal-Organic Framework Based on Copper and Carboxylate-Imidazole as Robust and Effective Catalyst in the Oxidative Amidation of Carboxylic Acids and Formamides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600991] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- María Albert-Soriano
- Organic Chemistry Department and Instituto de Síntesis Orgánica (ISO); University of Alicante; Apdo. 99 03080 Alicante Spain
| | - Isidro M. Pastor
- Organic Chemistry Department and Instituto de Síntesis Orgánica (ISO); University of Alicante; Apdo. 99 03080 Alicante Spain
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17
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Meena S, Singh R, Vishwakarma RA, Aga MA, Jain SK. SeO2 mediated efficient synthesis of amides and α-ketoamides of secondary amines with wide substrate scope. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Kumar Y, Shaw M, Thakur R, Kumar A. Copper(II)-Mediated Aerobic Oxidation of Benzylimidates: Synthesis of Primary α-Ketoamides. J Org Chem 2016; 81:6617-25. [DOI: 10.1021/acs.joc.6b01262] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yogesh Kumar
- Department
of Chemistry, Indian Institute of Technology Patna, Bihta 801103, Bihar, India
| | - Mukta Shaw
- Department
of Chemistry, Indian Institute of Technology Patna, Bihta 801103, Bihar, India
| | - Rima Thakur
- Department
of Chemistry, National Institute of Technology Patna, Patna 800005, Bihar, India
| | - Amit Kumar
- Department
of Chemistry, Indian Institute of Technology Patna, Bihta 801103, Bihar, India
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19
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Khan S, Battula S, Ahmed QN. Aroyl group driven [1,2] phosphonate-phosphate/phosphine oxide-phosphinate rearrangement. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Kumar A, Battini N, Kumar RR, Athimoolam S, Ahmed QN. Air-Assisted 2-Oxo-Driven Dehydrogenative α,α-Diamination of 2-Oxo Aldehydes to 2-Oxo Acetamidines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600587] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Atul Kumar
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (IIIM); Canal Road 180001 Jammu Jammu & Kashmir India
- Academy of Scientific and Innovative Research (AcSIR); Indian Institute of Integrative Medicine (IIIM); Canal Road 180001 Jammu Jammu & Kashmir India
| | - Narsaiah Battini
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (IIIM); Canal Road 180001 Jammu Jammu & Kashmir India
- Academy of Scientific and Innovative Research (AcSIR); Indian Institute of Integrative Medicine (IIIM); Canal Road 180001 Jammu Jammu & Kashmir India
| | - Raju Ranjith Kumar
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; 625021 Madurai India
| | - S. Athimoolam
- Department of Physics; University College of Engineering Nagercoil; Anna University; 629004 Nagercoil India
| | - Qazi Naveed Ahmed
- Medicinal Chemistry Division; Indian Institute of Integrative Medicine (IIIM); Canal Road 180001 Jammu Jammu & Kashmir India
- Academy of Scientific and Innovative Research (AcSIR); Indian Institute of Integrative Medicine (IIIM); Canal Road 180001 Jammu Jammu & Kashmir India
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21
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Behera A, Ali W, Tripathy M, Sahoo D, Patel BK. Transition metal-free synthesis of α-ketoamides from arylmethyl ketones and alkylphosphoramides. RSC Adv 2016. [DOI: 10.1039/c6ra16118a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Synthesis of α-ketoamides from arylmethyl ketones and hexalkylphosphoramides using TBAI as the catalyst and TBHP as the oxidant.
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Affiliation(s)
- Ahalya Behera
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam
- India
| | - Wajid Ali
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam
- India
| | - Manisha Tripathy
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam
- India
| | - Diptimayee Sahoo
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam
- India
| | - Bhisma K. Patel
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam
- India
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22
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Padala AK, Kumar RR, Athimoolam S, Ahmed QN. Divergent Reactivity of Amino Acid Alkyl Ester Hydrochlorides with 2-Oxoaldehydes: Role of Selenium Dioxide To Promote Regioselective Synthesis of Imidazoles. Org Lett 2015; 18:96-9. [DOI: 10.1021/acs.orglett.5b03321] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anil K. Padala
- Medicinal
Chemistry Division, Indian Institute of Integrative Medicine (IIIM), Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR-IIIM), Jammu 180001, India
| | - Raju Ranjith Kumar
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
| | - S. Athimoolam
- Department
of Physics, University College of Engineering Nagercoil, Anna University of Technology Tirunelveli, Nagercoil 629 004, India
| | - Qazi Naveed Ahmed
- Medicinal
Chemistry Division, Indian Institute of Integrative Medicine (IIIM), Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR-IIIM), Jammu 180001, India
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23
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Efficient and practical approach to esters from acids/ 2-oxoacids/ 2-oxoaldehydes &/ 2-oxoesters. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Xiao X, Xie Y, Bai S, Deng Y, Jiang H, Zeng W. Transition-Metal-Free Tandem Chlorocyclization of Amines with Carboxylic Acids: Access to Chloroimidazo[1,2-α]pyridines. Org Lett 2015; 17:3998-4001. [DOI: 10.1021/acs.orglett.5b01868] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xinsheng Xiao
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Ying Xie
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Siyi Bai
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yuanfu Deng
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
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25
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Deshidi R, Rizvi MA, Shah BA. Highly efficient dehydrogenative cross-coupling of aldehydes with amines and alcohols. RSC Adv 2015. [DOI: 10.1039/c5ra17425b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A common protocol for the synthesis of amides, esters and α-ketoesters via cross dehydrogenative coupling of aldehydes and amines/alcohols has been developed.
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Affiliation(s)
- Ramesh Deshidi
- Academy of Scientific and Innovative Research (AcSIR)
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- India
| | | | - Bhahwal Ali Shah
- Academy of Scientific and Innovative Research (AcSIR)
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- India
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