1
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Parida C, Pan SC. Organocatalytic Synthesis of Furan-Embedded Styrene Atropisomers. J Org Chem 2023; 88:13358-13370. [PMID: 37675791 DOI: 10.1021/acs.joc.3c01391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Herein, we report the first synthesis of furan-embedded styrene atropisomers via the reaction between 1-(aryl-ethynyl)-naphthalen-2-ol and γ-hydroxyenone. The reaction proceeds through in situ furan formation from γ-hydroxyenone. The styrene derivatives were obtained in moderate to good yields with high diastereoselectivities with a catalytic amount of PTSA. Few applications such as triazole formation and cross-coupling reactions have been demonstrated. A preliminary catalytic asymmetric version was also reported.
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Affiliation(s)
- Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
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2
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Steparuk EV, Meshcheryakova EA, Viktorova VV, Ulitko MV, Obydennov DL, Sosnovskikh VY. Oxidative Ring-Opening Transformation of 5-Acyl-4-pyrones as an Approach for the Tunable Synthesis of Hydroxylated Pyrones and Furans. J Org Chem 2023; 88:11590-11602. [PMID: 37504952 DOI: 10.1021/acs.joc.3c00907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
A selective and tunable approach for oxidation of 4-pyrones has been developed via ring-opening transformations leading to various hydroxylated oxaheterocycles. The first step of the strategy includes the base-catalyzed epoxidation of 5-acyl-4-pyrones in the presence of hydrogen peroxide for the effective synthesis of pyrone epoxides in high yields. The epoxides bearing the CO2Et group are reactive molecules that can undergo both pyrone and oxirane ring-opening via deformylation to produce hydroxylated 2-pyrones or 4-pyrones. The acid-promoted transformation led to 3-hydroxy-4-pyrones (24-76% yields), whereas the K2CO3-catalyzed ring-opening process of 2-carbethoxy-4-pyrone epoxides proceeded as an attack of alcohol at the C-3 position bearing the CO2Et group to give functionalized 6-acyl-5-hydroxy-2-pyrones (27-87% yields). The base-catalyzed reaction of 2-aryl-4-pyrone epoxides was followed by ring contraction and the dearoylation process to produce 3-hydroxyfuran-2-carbaldehydes in 42-80% yields. The transformation of 3-aroylchromone epoxides led to flavonols and 3-hydroxybenzofuran-2-carbaldehyde in the acidic and basic conditions, respectively. The prepared hydroxylated heterocycles demonstrated high reactivity for further transformations and low cytotoxicity and are promising fluorophores or UV filters.
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Affiliation(s)
- Elena V Steparuk
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenina Ave., 620000 Ekaterinburg, Russian Federation
| | - Ekaterina A Meshcheryakova
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenina Ave., 620000 Ekaterinburg, Russian Federation
| | - Viktoria V Viktorova
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenina Ave., 620000 Ekaterinburg, Russian Federation
| | - Maria V Ulitko
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenina Ave., 620000 Ekaterinburg, Russian Federation
| | - Dmitrii L Obydennov
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenina Ave., 620000 Ekaterinburg, Russian Federation
| | - Vyacheslav Y Sosnovskikh
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenina Ave., 620000 Ekaterinburg, Russian Federation
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3
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Hong C, Yu S, Liu Z, Xu Z, Zhang Y. Synthesis of Furans via Rhodium(III)-Catalyzed Cyclization of Acrylic Acids with α-Diazocarbonyl Compounds. J Org Chem 2022; 87:11979-11988. [PMID: 36037102 DOI: 10.1021/acs.joc.2c00924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient protocol for the synthesis of furans through Rh(III)-catalyzed vinyl C-H activation from acrylic acids and α-diazocarbonyl compounds has been developed. The reaction features broad functional group tolerance and affords a series of furans in moderate to good yields. Moreover, no additives such as copper or silver salts are required. Some control experiments are performed to give insight into the mechanism of this cascade transformation and the decarbonylation process is involved in the formation of the furan product.
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Affiliation(s)
- Chao Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Shuling Yu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhanxiang Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zijing Xu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuhong Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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4
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Ajibola IY, Ai L, Li B. Synthesis of Arylfurans by Organic‐Solvent‐Free Method Using Phosphoric Acid as a Solvent and Catalyst. ChemistrySelect 2021. [DOI: 10.1002/slct.202103038] [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)
- Ibrahim Yusuf Ajibola
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Liankun Ai
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Baolin Li
- School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 P. R. China
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5
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Hrizi A, Thiery E, Romdhani‐Younes M, Jacquemin J, Thibonnet J. Efficient Synthesis of Polysubstituted Furans through a Base‐Promoted Oxacyclization of (
Z
)‐2‐En‐4‐yn‐1‐ols. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100471] [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)
- Asma Hrizi
- University of Tours Department of Chemistry Laboratoire de Synthèse et Isolement de Molécules BioActives EA 7502 Faculté des Sciences et Techniques de Tours Parc de Grandmont 37200 Tours France
- University of Carthage Department of Chemistry, Faculté de Bizerte 7021 Zarzouna, Bizerte Tunisie
- Université de Tunis El Manar Faculté des Sciences de Tunis Département de chimie Laboratoire de Chimie (Bio)Organique Structurale et de Polymères (LR99ES14) Campus Universitaire 2092 El Manar Tunisia
| | - Emilie Thiery
- University of Tours Department of Chemistry Laboratoire de Synthèse et Isolement de Molécules BioActives EA 7502 Faculté des Sciences et Techniques de Tours Parc de Grandmont 37200 Tours France
| | - Moufida Romdhani‐Younes
- University of Carthage Department of Chemistry, Faculté de Bizerte 7021 Zarzouna, Bizerte Tunisie
- Université de Tunis El Manar Faculté des Sciences de Tunis Département de chimie Laboratoire de Chimie (Bio)Organique Structurale et de Polymères (LR99ES14) Campus Universitaire 2092 El Manar Tunisia
| | - Johan Jacquemin
- University of Tours Department of Chemistry Laboratoire PCM2E EA 6299 Faculté des Sciences et Techniques de Tours Parc de Grandmont 37200 Tours France
- Mohammed VI Polytechnic University Materials Science and Nano-Engineering Lot 660-Hay Moulay Rachid 43150 Ben Guerir Morocco
| | - Jérôme Thibonnet
- University of Tours Department of Chemistry Laboratoire de Synthèse et Isolement de Molécules BioActives EA 7502 Faculté des Sciences et Techniques de Tours Parc de Grandmont 37200 Tours France
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6
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Sarkar R, Mukhopadhyay C. Organocatalytic Synthesis of Heterocycles: A Brief Overview Covering Recent Aspects. CURRENT ORGANOCATALYSIS 2021. [DOI: 10.2174/2213337207999201029234021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The use of small organic molecules as organocatalysts in organic synthesis has been intensely
studied over the past decade. In this emerging field, considerable studies have led to the introduction
of various efficient organocatalyzed synthetic methods of carbon-carbon and carbon-
heteroatom bond formations. The use of these organocatalysts also showed environmentally benign
reaction conditions compared to the metal-catalyzed transformations. In this review, we paid
special attention to the most recent organocatalytic protocols reported for the synthesis of heterocycles.
The studies have been outlined, depending on the organocatalysts used as: (i) nitrogen-based
molecules as organocatalyst, (ii) NHCs as organocatalyst, and (iii) phosphorus-based molecules as
organocatalysts. The discussion intends to reveal the scope as well as the vitality of organocatalysis
in the area of heterocycle synthesis.
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Affiliation(s)
- Rajib Sarkar
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
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7
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Luo W, Yang Y, Liu B, Yin B. Iron-Catalyzed Oxidative Decarbonylative α-Alkylation of Acyl-Substituted Furans with Aliphatic Aldehydes as the Alkylating Agents. J Org Chem 2020; 85:9396-9404. [PMID: 32524818 DOI: 10.1021/acs.joc.0c01002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A protocol for FeCl2-catalyzed oxidative decarbonylative α-alkylation of acyl furans using alkyl aldehydes as the alkylating agents has been developed. This protocol affords α-alkyl-α-acylfurans in moderate to good yields in a practical and sustainable fashion. Mechanistic studies suggest that the reaction proceeds via generation of an alkyl radical from the alkyl aldehyde, addition of the radical to the furan ring, and subsequent rearomatization.
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Affiliation(s)
- Wenkun Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yongjie Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Bo Liu
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
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8
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He X, Xie M, Li R, Choy PY, Tang Q, Shang Y, Kwong FY. Organocatalytic Approach for Assembling Flavanones via a Cascade 1,4-Conjugate Addition/oxa-Michael Addition between Propargylamines with Water. Org Lett 2020; 22:4306-4310. [DOI: 10.1021/acs.orglett.0c01357] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Ruxue Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Pui Ying Choy
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Fuk Yee Kwong
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
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9
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Kaur N, Verma Y, Ahlawat N, Grewal P, Bhardwaj P, Jangid NK. Copper-assisted synthesis of five-memberedO-heterocycles. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1724144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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10
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Kaur N, Ahlawat N, Verma Y, Grewal P, Bhardwaj P, Jangid NK. Metal and organo-complex promoted synthesis of fused five-memberedO-heterocycles. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1700522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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11
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Wu W, Chen Y, Li M, Hu W, Lin X. Access to Polysubstituted (Furyl)methylthioethers via a Base-Promoted S-H Insertion Reaction of Conjugated Enynones. J Org Chem 2019; 84:14529-14539. [PMID: 31590485 DOI: 10.1021/acs.joc.9b02053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convenient and applicable approach to the construction of diverse functionalized (2-furyl)methylthioether derivatives via base-promoted S-H insertion of conjugated enynones with thiophenols or thiols has been developed. This reaction features readily available starting materials, high atom economy, broad substrate scope, and versatile operation. Moreover, the synthetic utility of this method has been demonstrated by the efficient synthesis of the CNKSPR1 inhibitor precursor and late-stage functionalization of glutathione.
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12
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Li M, Yang F, Yuan T, Li H, Li J, Chen ZS, Ji K. Syntheses of Z-Iodovinylfurans and 2-Acyl Furans via Controllable Cyclization of Ynenones. J Org Chem 2019; 84:12617-12625. [PMID: 31525974 DOI: 10.1021/acs.joc.9b01852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A divergent synthesis of Z-iodovinylfurans and 2-acyl furans promoted by NIS via controllable cyclization of ynenones is reported. The reaction proceeded by sequential 5-exo-dig electrophilic cyclization to intermediate 2-(iodomethylene)-2H-furanium cation D, providing a range of synthetically valuable and useful trisubstituted furan derivatives 2 and 3 in moderate to excellent yields. This approach is metal-free, mild, and atom-economic, with good selectivity and high stereoselectivity.
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Affiliation(s)
- Mengxue Li
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Fang Yang
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Ting Yuan
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Haoyang Li
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Jian Li
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Zi-Sheng Chen
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
| | - Kegong Ji
- College of Chemistry and Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology , Northwest A&F University , 3 Taicheng Road , Yangling, Xianyang 712100 , Shaanxi , P. R. China
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13
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Kuznetcova AV, Odin IS, Golovanov AA, Grigorev IM, Vasilyev AV. Multicomponent reaction of conjugated enynones with malononitrile and sodium alkoxides: Complex reaction mechanism of the formation of pyridine derivatives. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.06.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Affiliation(s)
- Ani Deepthi
- Department of Chemistry, University of Kerala, Thiruvananthapuram 695581, India
| | - Beneesh P. Babu
- Department of Chemistry, National Institute of Technology Karnataka, Surathkal, India
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15
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Abstract
Furans are five-membered aromatic heterocycles containing one oxygen atom that are important
building blocks in organic chemistry, but also as natural products found in various natural
sources, mostly in plants, algae and microorganisms. In this review, we discussed recent advances in the
synthesis of furan compounds. Some classical methods have been modified and improved, while other
new methods have been developed. A vast variety of catalysts was used for these transformations. In
many studies, furan synthesis reaction mechanisms were also investigated and proposed.
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Affiliation(s)
- Dau Xuan Duc
- Department of Chemistry, Vinh University, Vinh City, Vietnam
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16
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Golovanov AA, Gusev DM, Odin IS, Zlotskii SS. Conjugated 2,4,1- and 1,4,3-enynones as polycentricelectrophiles in synthesis of heterocyclic compounds. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02462-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Golovanov AA, Odin IS, Zlotskii SS. Conjugated enynones: preparation, properties and applications in organic synthesis. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4808] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Li Q, He X, Tao J, Xie M, Wang H, Li R, Shang Y. Base‐mediated 1,4‐Conjugate Addition/Intramolecular 5‐
exo‐dig
Annulation of Propargylamines with Benzoylacetonitriles and
β
‐Keto Esters for Polysubstituted Furans and Furo[3,4‐
c
]coumarins Formation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Qianqian Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 People's Republic of China
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 People's Republic of China
| | - Jiajia Tao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 People's Republic of China
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 People's Republic of China
| | - Hui Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 People's Republic of China
| | - Ruxue Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 People's Republic of China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 People's Republic of China
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19
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Rajeshkumar V, Neelamegam C, Anandan S. A one-pot metal-free protocol for the synthesis of chalcogenated furans from 1,4-enediones and thiols. Org Biomol Chem 2019; 17:982-991. [DOI: 10.1039/c8ob03051k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition-metal-free synthesis of chalcogenated furans through the sequential thiol-Michael/Paal–Knorr reaction of 1,4-enediones in the presence of a catalytic amount of p-toluene sulfonic acid has been developed.
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Affiliation(s)
| | | | - Sambandam Anandan
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli
- India
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20
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Rajeshkumar V, Neelamegam C, John L, Anandan S. Metal- and Solvent-Free Phosphine Mediated Synthesis of Multisubstituted Furans via
Intramolecular Annulation of 1, 4-Enediones. ChemistrySelect 2018. [DOI: 10.1002/slct.201802728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Venkatachalam Rajeshkumar
- Department of Chemistry; National Institute of Technology Tiruchirappalli, Tamil Nadu-; 620015 India
| | - Chinnaraj Neelamegam
- Department of Chemistry; National Institute of Technology Tiruchirappalli, Tamil Nadu-; 620015 India
| | - Lisa John
- Department of Chemistry; National Institute of Technology Tiruchirappalli, Tamil Nadu-; 620015 India
| | - Sambandam Anandan
- Department of Chemistry; National Institute of Technology Tiruchirappalli, Tamil Nadu-; 620015 India
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21
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Wachtendorf D, Geibel I, Schmidtmann M, Christoffers J. Octahydrocyclopenta[c
]pyridine Scaffold - Enantioselective Synthesis and Indole Annulation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Daniel Wachtendorf
- Institut für Chemie; Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
| | - Irina Geibel
- Institut für Chemie; Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
- Division of Chemistry and Chemical Engineering; California Institute of Technology; 91125 Pasadena CA USA
| | - Marc Schmidtmann
- Institut für Chemie; Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
| | - Jens Christoffers
- Institut für Chemie; Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
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22
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Sun J, Zheng G, Fu Y, Wang L, Li Y, Zhang Q. Copper-Catalyzed Cascade Aminoalkynylation-Oxidation of Propargylic Alcohols: Stereospecific Synthesis of ( Z)-2-Amino Conjugated Enynals/Enynones. Org Lett 2018; 20:5597-5600. [PMID: 30156850 DOI: 10.1021/acs.orglett.8b02272] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Copper-catalyzed cascade aminoalkynylation-oxidation of propargylic alcohols has been realized, sterospecifically providing an array of ( Z)-2-amino conjugated enynals/enynones in good yields under mild conditions. This transformation involves a rare 1,3-alkynyl migration of propargylic alcohols and simultaneously forms C-C, C-N, and C═O bonds. Furthermore, ( Z)-2-amino conjugated enynals were applied to efficiently synthesize 3,5-disubstituted-1 H-pyrrole-2-carbaldehyde and conjugated enynol derivatives.
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Affiliation(s)
- Jiaqiong Sun
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Guangfan Zheng
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Yongmei Fu
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Lihong Wang
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Yan Li
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Qian Zhang
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry , Northeast Normal University , Changchun , 130024 , China
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23
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El Arba M, Dibrell SE, Meece F, Frantz DE. Ru(II)-Catalyzed Synthesis of Substituted Furans and Their Conversion to Butenolides. Org Lett 2018; 20:5886-5888. [DOI: 10.1021/acs.orglett.8b02554] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Marie El Arba
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Sara E. Dibrell
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Frederick Meece
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Doug E. Frantz
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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24
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Chen L, Li HX, Dai M, Li HY, Lang JP. Capturing the Organic Species Derived from the C-C Cleavage and in Situ Oxidation of 1,2,3,4-Tetra(pyridin-4-yl)cyclobutane by [CuCN] n-Based MOFs. Inorg Chem 2018; 57:9160-9166. [PMID: 30044612 DOI: 10.1021/acs.inorgchem.8b01171] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The solvothermal cycloreversion and in situ oxidation of 1,2,3,4-tetra(pyridin-4-yl)cyclobutane (tpcb) within [CuCN] n-based MOFs were investigated. The radical mechanism for the cycloreversion of tpcb ligands was supported by capturing a 1,3-butadiene species 1,2,3,4-tetra(4-pyridyl)-1,3-butadiene (tpyb) into {[Cu18(μ-CN)18(tpcb)4(tpyb)2]·H2O} n in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). Without TEMPO, a furan-based ligand 2,3,4,5-tetra(4-pyridyl)furan (tpyf) was generated within {[Cu4(μ-CN)4(tpyf)]·4MeCN} n via the C-C cleavage, followed by in situ oxidation in acidic condition.
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Affiliation(s)
- Liang Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , Jiangsu , P. R. China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , P. R. China
| | - Hong-Xi Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , Jiangsu , P. R. China
| | - Ming Dai
- Suzhou Clean Environment Institute , Jiangsu Sujing Group Co., Ltd. , Suzhou 215122 , Jiangsu , China
| | - Hai-Yan Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , Jiangsu , P. R. China
| | - Jian-Ping Lang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , Jiangsu , P. R. China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , P. R. China
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