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Balasubramani A, Ganaie BA, Mehta G. Direct Two Carbon Ring Expansion of 1-Indanones with Ynones: An Eco-Friendly, One-Flask Approach to Functionally Enriched 5H-Benzo[7]annulenes. J Org Chem 2023; 88:15452-15460. [PMID: 37880254 DOI: 10.1021/acs.joc.3c01233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Direct 2C-ring expansion of 1-indanones with ynones to 5H-benzo[7]annulenes has been observed, and its generality has been gauged (19 examples). Overall, this simple and convenient cascade process to 5H-benzo[7]annulenes involves engagement of 1-indanone with two ynone moieties with formation of three new C-C σ-bonds, cleavage of C-C σ-bond, and concurrent functionality amplification. The resulting seven-membered ring, laced with an opportunistic disposition of four proximal functional groups, offers avenues for their further productive interplay. Our new approach embraces many green and eco-friendly features.
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Affiliation(s)
| | | | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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2
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Ganaie BA, Balasubramani A, Bhat BA, Mehta G. Indeno-Annulation of o-Formyl-Ynones, o-Bis-Ynones, and p-Bis- o-Formyl-Ynones with Dimethyl Acetone-1,3-Dicarboxylate: One Flask Cascade Synthesis of Functionally Endowed 9-Fluorenols and Indeno[1,2- b]fluorenols. J Org Chem 2023; 88:11637-11649. [PMID: 37558646 DOI: 10.1021/acs.joc.3c00958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
A mild, scalable, one-pot access to multifunctional 9-fluorenols from o-formyl-ynones and o-bis-ynones on reaction with dimethylacetone-1,3-dicarboxyate through tandem Michael addition-Aldol condensation cascade has been conceptualized and executed. The scope and utility of this synthetic approach have been further amplified for one-pot entry into functionally enhanced, higher order fluorenols like pentacyclic indeno[1,2-b]fluorene-6,12-diols and further to indeno[1,2-b]fluorene-6,12-diones through the implementation of "double indeno-annulation" tactic on p-bis-o-formyl ynones and dimethylacetone-1,3-dicarboxylate. Besides several green attributes, the current approach is also compatible with the emerging time and energy economy features and is a swift gateway to build complexity.
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Affiliation(s)
| | | | - Bilal A Bhat
- Natural Products & Medicinal Chemistry, CSIR-Indian Institute and Integrative Medicine Sanatnagar, Srinagar 190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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3
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Balasubramani A, Mehta G. One-Pot Synthesis of Functionally Enriched Benzo[ b]fluorenones: An Eco-Friendly Embedment of Diverse 1-Indanones into o-Bis-Ynones. J Org Chem 2023; 88:933-943. [PMID: 36602529 DOI: 10.1021/acs.joc.2c02330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An efficient, base-promoted, one-pot, metal-free, open-flask synthesis of diverse, functionally enriched benzo[b]fluoren-11-ones has been discovered, and wide applicability of this exceptionally simple protocol with green flavors has been scoped. This synthesis proceeds via an unanticipated, tandem, double-aldol condensation between in situ-generated 1-indanone dianions and o-bis-ynones to furnish benzo[b]fluoren-11-ones harboring as many as six variegated substituents on their tetracyclic framework. This methodology has also been amplified to access heterocyclic analogues 2- and 4-azabenzo[b]fluorenones of benzo[b]fluoren-11-ones and extended to mixed linear-angular annulated pentacyclic dibenzo[a,h]fluoren-13-one.
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Affiliation(s)
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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4
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Gunnam A, Balasubramani A, Mehta G. Recursive Anion-Triggered Tandem Reactions of ortho-Bis-ynones: Tunable Synthesis of 1-Indenones and Cyclopenta[ a]inden-8(2 H)-ones. J Org Chem 2022; 87:4376-4384. [PMID: 35226482 DOI: 10.1021/acs.joc.2c00057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Recursive anion-mediated activation of o-bis-ynones sets off a Michael addition-aldol reaction-dehydrative rearrangement cascade, leading to the one-pot synthesis of 1-indenones via orthogonal interplay between the two ortho-ynone moieties. Repeating the recursive anion engagement with the 1-indenones unfolded access to a functionally embellished cyclopenta[a]inden-8(2H)-one core and its spiroannulated analogues either directly or stepwise through tandem 1,6-Michael-type addition-6π electrocyclization and an in situ oxidation sequence.
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Affiliation(s)
- Anilkumar Gunnam
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | | | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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5
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Sarma MJ, Jindani S, Ganguly B, Pabbaraja S, Mehta G. Tandem Michael- anti-Michael Addition-Mediated Orthogonal Strapping of Diynones: Regioselective Spirocyclopentannulation of Oxindoles and Pyrazolones and DFT Validation. J Org Chem 2021; 87:884-891. [PMID: 34941241 DOI: 10.1021/acs.joc.1c02667] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient protocol involving the transformation of sequentially generated recursive anions from heterocyclic precursors to orthogonally strap diynones through one pot transition-metal-free spirocyclopentannulation has been devised, employing oxindoles and pyrazolones as prototypical platforms. Insights into these regioselective tandem Michael-anti-Michael processes have been gleaned through DFT calculations.
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Affiliation(s)
- Manas Jyoti Sarma
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India.,Department of Organic Synthesis and Process Chemistry, CSIR─Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sana Jindani
- Computation and Simulation Unit, Analytical Discipline and Centralized Instrumentation Facility, CSIR─Central Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat 364002, India
| | - Bishwajit Ganguly
- Computation and Simulation Unit, Analytical Discipline and Centralized Instrumentation Facility, CSIR─Central Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat 364002, India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process Chemistry, CSIR─Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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6
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Ye YF, Yang WW, Zhang JW, Fu JY, Zhu JY, Wang YB. Phosphine-Catalyzed Synthesis of 3-Allyl-4-pyrones by the Tandem Reaction of Diynones and Allylic Alcohols. J Org Chem 2021; 86:14476-14484. [PMID: 34658239 DOI: 10.1021/acs.joc.1c01340] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A simple and effective tandem reaction of diynones and allylic alcohols was developed to afford functionalized 3-allyl-4-pyrones in moderate to excellent yields. This protocol underwent a Michael addition─Claisen rearrangement─O-cyclization process, which exhibited broad substrate tolerance, high regioselectivity, and atom economy under a metal-free condition. Moreover, functional transformation of the products was also further studied.
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Affiliation(s)
- Ya-Fang Ye
- Institute of Functional Organic Molecular Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Wan-Wan Yang
- Institute of Functional Organic Molecular Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Jing-Wen Zhang
- Institute of Functional Organic Molecular Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Ji-Ya Fu
- Institute of Functional Organic Molecular Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Jun-Yan Zhu
- Institute of Functional Organic Molecular Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Yan-Bo Wang
- Institute of Functional Organic Molecular Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
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7
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Mali G, Chauhan ANS, Chavan KA, Erande RD. Development and Applications of Double Diels‐Alder Reaction in Organic Synthesis. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ghanshyam Mali
- Department of Chemistry Indian Institute of Technology Jodhpur Jodhpur 342037 India
| | | | - Kailas Arjun Chavan
- Department of Chemistry Indian Institute of Technology Jodhpur Jodhpur 342037 India
| | - Rohan D. Erande
- Department of Chemistry Indian Institute of Technology Jodhpur Jodhpur 342037 India
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8
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Mu Y, Yao Q, Yin L, Fu S, Wang M, Yuan Y, Kong L, Li Y. Atom-Economic Synthesis of Highly Functionalized Bridged Ring Systems Initiated by Ring Expansion of Indene-1,3-dione. J Org Chem 2021; 86:6755-6764. [PMID: 33847128 DOI: 10.1021/acs.joc.1c00487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An atom economic procedure for the regioselective synthesis of bridged seven-membered-ring compounds from simple reactants such as ynones and indene-1,3-dione has been developed. This process was realized through the one-pot reactions of ring-expansion of indene-1,3-dione with alkynyl ketones and successive formal [4+2] cycloaddition. The Michael addition reaction is the key for the regioselectivity of the formal [4+2] cycloaddition.
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Affiliation(s)
- Yuanyang Mu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Qiyi Yao
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Liqiang Yin
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Siyi Fu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Mengdan Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yang Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Lingkai Kong
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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9
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Wang ZY, Wang KK, Chen R, Liu H, Chen K. Ynones in Reflex-Michael Addition, CuAAC, and Cycloaddition, as Well as their Use as Nucleophilic Enols, Electrophilic Ketones, and Allenic Precursors. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901921] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhan-Yong Wang
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Kai-Kai Wang
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Rongxiang Chen
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Huan Liu
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Kaijun Chen
- Department of Chemistry; Lishui University; No. 1, Xueyuan Road 323000 Lishui City Zhejiang Province P. R. China
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10
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
| | - Leiv K. Sydnes
- Department of Chemistry, University of Bergen, Allégt. 41, Bergen NO-5007, Norway
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
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11
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Bam R, Chalifoux WA. One-Pot Domino Friedel-Crafts Acylation/Annulation between Alkynes and 2-Methoxybenzoyl Chlorides: Synthesis of 2,3-Disubstituted Chromen-4-one Derivatives. J Org Chem 2018; 83:9929-9938. [PMID: 29869491 DOI: 10.1021/acs.joc.8b01357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A highly regioselective synthesis of 2,3-disubstituted chromen-4-one derivatives is accomplished from readily available internal alkynes and 2-methoxybenzoyl chlorides. The reaction proceeds via a domino intermolecular Friedel-Crafts acylation/intramolecular vinyl carbocation trapping (or oxa-Michael addition)/demethylation reaction sequence. This Lewis acid promoted method features relatively mild reaction conditions to synthesize a variety of 2,3-disubstituted chromen-4-one derivatives in one pot with up to 93% yield. The chromen-2-one (coumarin) product was obtained when 2,6-dimethoxybenzoyl chloride was used as a starting material via an electrophilic aromatic substitution/rearrangement process.
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Affiliation(s)
- Radha Bam
- Department of Chemistry , University of Nevada-Reno , 1664 North Virginia Street , Reno , Nevada 89557 , United States
| | - Wesley A Chalifoux
- Department of Chemistry , University of Nevada-Reno , 1664 North Virginia Street , Reno , Nevada 89557 , United States
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12
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Multidentate unsymmetrically-substituted Schiff bases and their metal complexes: Synthesis, functional materials properties, and applications to catalysis. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.030] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Hamal KB, Chalifoux WA. One-Pot Synthesis of α-Carbonyl Bicyclic Furans via a Sequential Diels–Alder/5-Exo-Dig Cyclization/Oxidation Reaction. J Org Chem 2017; 82:12920-12927. [DOI: 10.1021/acs.joc.7b02479] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Khagendra B. Hamal
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
| | - Wesley A. Chalifoux
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
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14
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Carmichael RA, Chalifoux WA. One-pot synthesis of [6-5-6] tricyclic products via a double Diels-Alder/Nazarov tandem reaction of unsymmetrically substituted cross-conjugated diynones. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Carmichael RA, Sophanpanichkul P, Chalifoux WA. β-Silyl-Assisted Tandem Diels–Alder/Nazarov Reaction of 1-Aryl-3-(trimethylsilyl) Ynones. Org Lett 2017; 19:2592-2595. [DOI: 10.1021/acs.orglett.7b00911] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rachael A. Carmichael
- Department of Chemistry, University of Nevada—Reno, 1664 North Virginia Street, Reno, Nevada 89557, United States
| | - Punyanuch Sophanpanichkul
- Department of Chemistry, University of Nevada—Reno, 1664 North Virginia Street, Reno, Nevada 89557, United States
| | - Wesley A. Chalifoux
- Department of Chemistry, University of Nevada—Reno, 1664 North Virginia Street, Reno, Nevada 89557, United States
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16
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Xing S, Ren J, Wang K, Cui H, Xia T, Zhang M, Wang D. Facile, Efficient and Diastereoselective Construction of Indane-Fused Pyrrolidin-2-onesviaa Potassium Hydroxide-Catalyzed Domino Reaction. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600611] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
| | - Jing Ren
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
| | - Kui Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
| | - Hong Cui
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
| | - Tian Xia
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
| | - Ming Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
| | - Dandan Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
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