1
|
Wang Y, O'Doherty GA. Synthetic Efforts and Ultimate Limitation to an Asymmetric Achmatowicz Approach Toward EBC-23. J Org Chem 2022; 87:6006-6013. [PMID: 35435679 DOI: 10.1021/acs.joc.2c00262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An effort toward the total synthesis of the polyketide natural product EBC-23 is reported. The asymmetric approach is convergent and uses a late-stage Claisen-like enolate/acid chloride coupling to establish a key 1,3-diketone intermediate. The 1,3-diketone target is an oxidized form of the hydrated natural product, which fails to spiroketalize. The convergent asymmetric synthesis uses an asymmetric Noyori transfer hydrogenation of a β-furyl ketoester to enantioselectively form a chiral furyl alcohol. An Achmatowicz/Jones/Luche three-step reaction sequence was used to stereoselectively convert the furyl alcohol into the 5-hydroxy-pyran-2-one. The absolute stereochemistry of the 1,3-polyol fragment was established by a Leighton allylation. A subsequent Grubbs cross-metathesis, and Evans acetalation were used to install the 1,3-syn-diol stereochemistry.
Collapse
Affiliation(s)
- Yanping Wang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - George A O'Doherty
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| |
Collapse
|
2
|
Zalivatskaya AS, Golovanov AA, Boyarskaya IA, Kruykova MA, Khoroshilova OV, Vasilyev AV. Triflic Acid Promoted Transformations of Linear‐Conjugated Enynones and their Reactions with Arenes. Synthesis of Dihydropyranones, Conjugated Dienones, and Indanes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Anna S. Zalivatskaya
- Department of Organic Chemistry Institute of Chemistry Saint Petersburg State University Universitetskaya nab., 7/9 Saint Petersburg 199034 Russia
- Department of Chemistry Saint Petersburg State Forest Technical University Institutsky per., 5 Saint Petersburg 194021 Russia
| | - Alexander A. Golovanov
- Laboratory of Organic Synthesis and Analysis no. 13 Togliatti State University Belorusskaya ul., 14 Togliatti 445667 Russia
| | - Irina A. Boyarskaya
- Department of Organic Chemistry Institute of Chemistry Saint Petersburg State University Universitetskaya nab., 7/9 Saint Petersburg 199034 Russia
| | - Mariya A. Kruykova
- Research Center for X-ray Diffraction Studies Research park St. Petersburg State University Universitetskiy pr. 26 Saint Petersburg, Petrodvoretz 198504 Russia
| | - Olesya V. Khoroshilova
- Department of Organic Chemistry Institute of Chemistry Saint Petersburg State University Universitetskaya nab., 7/9 Saint Petersburg 199034 Russia
| | - Aleksander V. Vasilyev
- Department of Organic Chemistry Institute of Chemistry Saint Petersburg State University Universitetskaya nab., 7/9 Saint Petersburg 199034 Russia
- Department of Chemistry Saint Petersburg State Forest Technical University Institutsky per., 5 Saint Petersburg 194021 Russia
| |
Collapse
|
3
|
Stojanović M, Bugarski S, Baranac-Stojanović M. Synthesis of 2,3-Dihydro-4-pyridones and 4-Pyridones by the Cyclization Reaction of Ester-Tethered Enaminones. J Org Chem 2020; 85:13495-13507. [PMID: 33092340 DOI: 10.1021/acs.joc.0c01537] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
2,3-Dihydro-4-pyridone skeleton is an important building block in organic synthesis because it features several reaction sites with nucleophilic or electrophilic properties. Herein, we disclose a method for its formation by intramolecular cyclization of ester-tethered enaminones, which can easily be synthesized from readily available materials, such as amines, activated alkynes, and activated alkenes. 2,3-Dihydro-4-pyridones have been isolated in 41-90% yields. We also demonstrate the transformation of these heterocycles into another important class of compounds, 4-pyridones, by utilizing 2,3,5,6-tetrachloro-p-benzoquinone (chloranil) as an oxidizing agent. The latter products were isolated in 65-94% yields.
Collapse
Affiliation(s)
- Milovan Stojanović
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy-Center for Chemistry, Njegoševa 12, P.O. Box 473, 11000 Belgrade, Serbia
| | - Slobodan Bugarski
- University of Belgrade-Faculty of Chemistry, Studentski trg 12-16, P.O. Box 158, 11000 Belgrade, Serbia
| | - Marija Baranac-Stojanović
- University of Belgrade-Faculty of Chemistry, Studentski trg 12-16, P.O. Box 158, 11000 Belgrade, Serbia
| |
Collapse
|
4
|
Cyclization of 1-Aryl-5-Phenylpent-4-en-2-yn-1-Ones to 2,3-Dihydropyran-2-Ones in Trifluoromethanesulfonic Acid. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02756-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
5
|
Glass A, Higgins T, Hunt DA. Annulation chemistry based on tandem Michael addition-enamine formation – An improved method for the preparation of 1-substituted-2,3,5,6,7,8-hexahydroquinolin-4(1H)-ones. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
6
|
Chen Y, Hu J, Guo LD, Tian P, Xu T, Xu J. Synthesis of the Core Structure of Daphnimacropodines. Org Lett 2019; 21:4309-4312. [PMID: 31141376 DOI: 10.1021/acs.orglett.9b01486] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Daphniphyllum alkaloids daphnimacropodines A-C possess a highly congested ring system and share a common tetracyclic ring skeleton. To access the challenging chemical structure of daphnimacropodines, a divergent synthetic approach toward their total synthesis is described. A stereoselective synthesis of the core structure of daphnimacropodines has been achieved from a simple diketone building block. Our approach features an intramolecular carbamate aza-Michael addition and a hydropyrrole synthesis via a Au-catalyzed alkyne hydration followed by an aldol condensation, whereas all the other attempts failed.
Collapse
Affiliation(s)
- Yuye Chen
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China.,State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences , University of Macau , Taipa , Macau 999078 , China
| | - Jingping Hu
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China.,School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150006 , China
| | - Lian-Dong Guo
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China
| | - Peilin Tian
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China
| | - Tianyue Xu
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China
| |
Collapse
|
7
|
Obydennov DL, El-Tantawy AI, Sosnovskikh VY. Synthesis of Multifunctionalized 2,3-Dihydro-4-pyridones and 4-Pyridones via the Reaction of Carbamoylated Enaminones with Aldehydes. J Org Chem 2018; 83:13776-13786. [PMID: 30336022 DOI: 10.1021/acs.joc.8b02075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The novel and effective diastereoselective synthesis of multifunctionalized dihydropyridones, including CF3-substituted derivatives, has been developed on the basis of the piperidine-promoted domino reaction of carbamoylated enaminones with aldehydes. The products have been prepared in 38-90% yields and can be easily isolated by crystallization. Tautomerism, epimerization, and atropisomerism of dihydropyridones have been studied. The use of the resulting dihydropyridones in the synthesis of 1,2,6-trisubstituted 4-pyridone-3-carboxamides has been demonstrated via oxidative aromatization initiated by iodine.
Collapse
Affiliation(s)
- Dmitrii L Obydennov
- Institute of Natural Sciences and Mathematics , Ural Federal University , 620000 Ekaterinburg , Russian Federation
| | - Asmaa I El-Tantawy
- Institute of Natural Sciences and Mathematics , Ural Federal University , 620000 Ekaterinburg , Russian Federation.,Department of Physics and Engineering Mathematics, Faculty of Electronic Engineering , Menoufia University , 32952 Menouf , Egypt
| | - Vyacheslav Y Sosnovskikh
- Institute of Natural Sciences and Mathematics , Ural Federal University , 620000 Ekaterinburg , Russian Federation
| |
Collapse
|
8
|
Yao J, Yin L, Shen Y, Lu T, Hayashi T, Dou X. Catalytic Asymmetric Conjugate Arylation of γ,δ-Unsaturated β-Dicarbonyl Compounds. Org Lett 2018; 20:6882-6885. [DOI: 10.1021/acs.orglett.8b03021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Yao
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Long Yin
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Yue Shen
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Tao Lu
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Tamio Hayashi
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Xiaowei Dou
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| |
Collapse
|
9
|
Yang SM, Tsai YL, Reddy GM, Möhlmann L, Lin W. Chemo- and Diastereoselective Michael–Michael-Acetalization Cascade for the Synthesis of 1,3-Indandione-Fused Spiro[4.5]decan Scaffolds. J Org Chem 2017; 82:9182-9190. [DOI: 10.1021/acs.joc.7b01415] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shu-Mei Yang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Yi-Ling Tsai
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Ganapuram Madhusudhan Reddy
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Lennart Möhlmann
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| |
Collapse
|
10
|
Fernández-García JM, Garro HA, Fernández-García L, García-García P, Fernández-Rodríguez MA, Merino I, Aguilar E. Gold-Catalyzed Cycloisomerizations of Functionalyzed Cyclopropyl Alkynes: the Cases of Carboxamides and Alcohols. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700264] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jesús M. Fernández-García
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; C/Julián Clavería, 8. 33006 Oviedo Spain
| | - Hugo A. Garro
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; C/Julián Clavería, 8. 33006 Oviedo Spain
- Área de Química Orgánica; INTEQUI-CONICET-UNSL; 5700 San Luis Argentina
| | - Laura Fernández-García
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; C/Julián Clavería, 8. 33006 Oviedo Spain
| | - Patricia García-García
- Departamento de Química Orgánica y Química Inorgánica; Universidad de Alcalá; 28871 Alcalá de Henares Madrid Spain
| | - Manuel A. Fernández-Rodríguez
- Área de Química Orgánica, Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos, s/n 09001 Burgos Spain
| | - Isabel Merino
- Unidad de Resonancia Magnética Nuclear; Servicios Científico-Técnicos; Universidad de Oviedo; C/Julián Clavería, 8. 33006 Oviedo Spain
| | - Enrique Aguilar
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; C/Julián Clavería, 8. 33006 Oviedo Spain
| |
Collapse
|
11
|
Saulnier S, Lozovskiy SV, Golovanov AA, Ivanov AY, Vasilyev AV. Brønsted Acid Promoted Cyclization of Cross-Conjugated Enynones into Dihydropyran-4-ones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700423] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Steve Saulnier
- Department of Organic Chemistry; Institute of Chemistry; Saint Petersburg State University; Universitetskaya nab. 7/9 199034 Saint Petersburg Russia
| | - Stanislav V. Lozovskiy
- Department of Organic Chemistry; Institute of Chemistry; Saint Petersburg State University; Universitetskaya nab. 7/9 199034 Saint Petersburg Russia
| | - Alexander A. Golovanov
- Department of Chemistry; Chemical Processes and Technologies; Togliatti State University; Belorusskaya ul. 14 445667 Togliatti Russia
| | - Alexander Yu. Ivanov
- Center for Magnetic Resonance; Research Park; Saint Petersburg State University; Universitetskiy pr. 26 198504 Saint Petersburg, Petrodvoretz Russia
| | - Aleksander V. Vasilyev
- Department of Organic Chemistry; Institute of Chemistry; Saint Petersburg State University; Universitetskaya nab. 7/9 199034 Saint Petersburg Russia
- Department of Chemistry; Saint Petersburg State Forest Technical University; Institutsky per. 5 194021 Saint Petersburg Russia
| |
Collapse
|
12
|
Ilangovan A, Sakthivel P, Zipse H. An Unusual Grob-type C-C/C-O Bond Cleavage of 5-Acyl-2,3-dihydro-4H-pyran-4-one Derivatives. ChemistrySelect 2016. [DOI: 10.1002/slct.201600131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Andivelu Ilangovan
- School of Chemistry; Bharathidasan University; Tiruchirapplli- 620024 Tamilnadu India
| | - Palaniappan Sakthivel
- School of Chemistry; Bharathidasan University; Tiruchirapplli- 620024 Tamilnadu India
| | - Hendrik Zipse
- Department of Chemistry; LMU Muenchen; Butenandtstrasse 5-13 81377 Muenchen Germany
| |
Collapse
|
13
|
Wang R, Zhang X, Chen C, Chen G, Zhong Q, Zhang Q, Zheng S, Wang G, Chen QH. Synthesis and evaluation of 1,7-diheteroarylhepta-1,4,6-trien-3-ones as curcumin-based anticancer agents. Eur J Med Chem 2016; 110:164-80. [PMID: 26827161 DOI: 10.1016/j.ejmech.2016.01.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 12/23/2015] [Accepted: 01/11/2016] [Indexed: 01/06/2023]
Abstract
Thirty (1E,4E,6E)-1,7-diaryl-1,4,6-heptatrien-3-ones, featuring a central linear trienone linker and two identical nitrogen-containing heteroaromatic rings, were designed and synthesized as curcumin-based anticancer agents on the basis of their structural similarity to the enol-tautomer of curcumin, in addition to taking advantage of the possibly enhanced pharmacokinetic profiles contributed by the basic nitrogen-containing heteroaromatic rings. Their cytotoxicity and antiproliferative activity were evaluated towards both androgen-dependent and androgen-independent prostate cancer cell lines, as well as HeLa human cervical cancer cells. Among them, the ten most potent analogues are 5- to 36-fold more potent than curcumin in inhibiting cancer cell proliferation. The acquired structure-activity relationship data indicate (i) that (1E,4E,6E)-1,7-diaryl-1,4,6-heptatrien-3-ones represent a potential scaffold for development of curcumin-based agents with substantially improved cytotoxicity and anti-proliferative effect; and (ii) 1-alkyl-1H-imidazol-2-yl and 1-alkyl-1H-benzo[d]imidazole-2-yl serve as optimal heteroaromatic rings for increased in vitro potency of this scaffold. Two of most potent compounds displayed no apparent cytotoxicity toward MCF-10A normal mammary epithelial cells at 1 μM concentration. Treatment of PC-3 prostate cancer cells with the most potent compound led to appreciable cell cycle arrest at a G1/G0 phase and cell apoptosis induction.
Collapse
Affiliation(s)
- Rubing Wang
- Department of Chemistry, California State University, Fresno, 2555 E. San Ramon, M/S SB70, Fresno, CA 93740, USA
| | - Xiaojie Zhang
- Department of Chemistry, California State University, Fresno, 2555 E. San Ramon, M/S SB70, Fresno, CA 93740, USA
| | - Chengsheng Chen
- Department of Chemistry, California State University, Fresno, 2555 E. San Ramon, M/S SB70, Fresno, CA 93740, USA
| | - Guanglin Chen
- Department of Chemistry, California State University, Fresno, 2555 E. San Ramon, M/S SB70, Fresno, CA 93740, USA
| | - Qiu Zhong
- RCMI Cancer Research Center, Xavier University of Louisiana, 1 Drexel Drive, New Orleans, LA 70125, USA
| | - Qiang Zhang
- RCMI Cancer Research Center, Xavier University of Louisiana, 1 Drexel Drive, New Orleans, LA 70125, USA
| | - Shilong Zheng
- RCMI Cancer Research Center, Xavier University of Louisiana, 1 Drexel Drive, New Orleans, LA 70125, USA
| | - Guangdi Wang
- RCMI Cancer Research Center, Xavier University of Louisiana, 1 Drexel Drive, New Orleans, LA 70125, USA; Department of Chemistry, Xavier University of Louisiana, 1 Drexel Drive, New Orleans, LA 70125, USA
| | - Qiao-Hong Chen
- Department of Chemistry, California State University, Fresno, 2555 E. San Ramon, M/S SB70, Fresno, CA 93740, USA.
| |
Collapse
|
14
|
Synthesis of substituted pyridines from 1,2-nucleophilic addition products of functionalized N-acyl-2,3-dihydropyridones. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.07.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
15
|
Jang YJ, Chen YS, Lee CJ, Chen CH, Reddy GM, Ko CT, Lin W. Asymmetric Organocatalytic Synthesis of Highly Substituted Cyclohexenols by Domino Double-Michael Reactions of 1-Hydroxy-1,4-dien-3-ones and 2-Alkylidenemalononitriles. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403677] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
16
|
Ranade A, Georg GI. Enantioselective synthesis of 3,4-dihydro-1,2-oxazepin-5(2H)-ones and 2,3-dihydropyridin-4(1H)-ones from β-substituted β-hydroxyaminoaldehydes. J Org Chem 2014; 79:984-92. [PMID: 24785413 PMCID: PMC3985460 DOI: 10.1021/jo402445r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Indexed: 12/12/2022]
Abstract
The synthesis of 3,4-dihydro-1,2-oxazepin-5(2H)-ones and 2,3-dihydropyridin-4(1H)-ones from β-substituted β-hydroxyaminoaldehydes is reported. The β-hydroxyaminoaldehydes were prepared by enantioselective organocatalytic 1,4-addition of N-tert-butyl (tert-butyldimethylsilyl)oxycarbamate to α,β-unsaturated aldehydes (MacMillan protocol). Alkyne addition to the aldehydes followed by alcohol oxidation furnished N-Boc O-TBS-protected β-aminoynones. Removal of the TBS protecting group initiated a 7-endo-dig cyclization to yield previously unknown 3,4-dihydro-1,2-oxazepin-5(2H)-ones. Reductive cleavage of the N-O bond of the oxazepinones and Boc-deprotection provided 2-substituted 2,3-dihydropyridin-4(1H)-ones via 6-endo-trig cyclization. 2,3-Dihydropyridin-4(1H)-ones are versatile intermediates that have been used for the synthesis of many alkaloids. The new protocol allows the synthesis of 3-dihydropyridin-4(1H)-ones carrying an array of substituents at C2 that cannot be prepared from commercial β-amino acids or by one-carbon homologation of proteinogenic amino acids. The use of readily available β-hydroxylaminoaldehydes expands the utility of our previously reported method to prepare 2,3-dihydropyridin-4(1H)-ones from β-amino acids as the source of diversity and chirality. A broad substrate scope is possible because β-aminoaldehydes can be prepared from α,β-unsaturated aldehydes by an enantioselective organocatalytic process.
Collapse
Affiliation(s)
- Adwait
R. Ranade
- University
of Kansas, 1251 Wescoe
Hall Drive, 4070 Malott
Hall, Lawrence, Kansas 66045-7482, United States
- Department of Medicinal
Chemistry
and Institute for Therapeutics Discovery & Development, University of Minnesota, 717 Delaware Street South East, Minneapolis, Minnesota 55414, United States
| | | |
Collapse
|
17
|
Ilangovan A, Sakthivel P. Simple access to 5-carboalkoxy-2,3-dihydro-4H-pyran-4-ones via domino acylative electrocyclization: the first three step total synthesis of the dihydronaphthopyran-4-one class of natural products. RSC Adv 2014. [DOI: 10.1039/c4ra11174e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
5-Carboalkoxy-2,3-dihydropyran-4-ones synthesised via domino C-acylation/6π-oxaelectrocyclization protocol was employed as a starting material for the first three step total synthesis of dihydronaphthopyran-4-one class of natural products.
Collapse
Affiliation(s)
- Andivelu Ilangovan
- School of Chemistry
- Bharathidasan University
- Tiruchirappalli-620 024, India
| | | |
Collapse
|
18
|
Indium-mediated regioselective mono-allylation of 1,5-dicarbonyl compounds and dehydrative cyclization to 2,3-dihydro-4H-pyran-4-ones and 3,4-dihydro-2H-[1,4]oxazines. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.07.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
19
|
Yang F, Ji KG, Zhao SC, Ali S, Ye YY, Liu XY, Liang YM. Brønsted Acid Catalyzed Cycloisomerizations of 5,2-Enyne-1-ones: Highly Regioselective Synthesis of 2,3-Dihydro-4H-pyran-4-ones. Chemistry 2012; 18:6470-4. [DOI: 10.1002/chem.201103771] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 03/08/2012] [Indexed: 11/12/2022]
|
20
|
Bartlett SL, Beaudry CM. High-yielding oxidation of β-hydroxyketones to β-diketones using o-iodoxybenzoic acid. J Org Chem 2011; 76:9852-5. [PMID: 22023037 DOI: 10.1021/jo201810c] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The oxidation of β-hydroxyketones to β-diketones was systematically investigated. o-Iodoxybenzoic acid (IBX) was found to be efficient, operationally easy, and superior to other common oxidants. The reaction is suitable for milligram- to gram-scale oxidations.
Collapse
Affiliation(s)
- Samuel L Bartlett
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, USA
| | | |
Collapse
|
21
|
Astashko DA, Tyvorskii VI. A convenient route to 2,6-dialkyl-2,3-dihydro-4H-pyran-4-ones via oxidative cleavage of protected 1-(2-oxoalkyl)-cyclopropanols. Synthesis of (±)-hepialone and its natural congener. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
22
|
Boominathan M, Nagaraj M, Muthusubramanian S, Krishnakumar RV. Efficient atom economical one-pot multicomponent synthesis of densely functionalized 4H-chromene derivatives. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.06.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
23
|
Six-Membered Ring Systems:. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s0959-6380(11)22015-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
24
|
Singh S, Singh P, Rai VK, Kapoor R, Yadav LDS. Nucleophilic acylation of α-haloketones with aldehydes: an umpolung strategy for the synthesis of 1,3-diketones. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.10.175] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
25
|
Saeed BA, Elias RS, Radhi WA. Microwave-assisted synthesis of novel 2,3-dihydro-4-pyridinones. Molecules 2010; 15:8425-30. [PMID: 21085086 PMCID: PMC6259262 DOI: 10.3390/molecules15118425] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Revised: 11/09/2010] [Accepted: 11/11/2010] [Indexed: 11/16/2022] Open
Abstract
Novel 2,3-dihydro-4-pyridinones were synthesized via the reaction of curcumin and primary amines or amine acetates under microwave irradiation. Montmorillonite K-10 was used as a catalyst. Reaction times did not exceed 120 s. The structures of the compounds were established by elemental analysis and from their mass, 1H- and 13C-NMR spectra.
Collapse
Affiliation(s)
- Bahjat A Saeed
- Department of Chemistry, College of Education, University of Basrah, Iraq.
| | | | | |
Collapse
|
26
|
Saeed BA, Radhi WA, Elias RS. Synthesis of novel 2,3-dihydro-4-pyridinones from bisdemethoxycurcumin under microwave irradiation. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.08.115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|