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Souto JA, Román D, Domínguez M, Lera ÁR. Synthetic Studies on Alotamide A: Construction of
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‐Demethylalotamide A. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- José A. Souto
- CINBIO Universidade de Vigo Departamento de Química Orgánica 36310 Vigo España
| | - David Román
- CINBIO Universidade de Vigo Departamento de Química Orgánica 36310 Vigo España
| | - Marta Domínguez
- CINBIO Universidade de Vigo Departamento de Química Orgánica 36310 Vigo España
| | - Ángel R. Lera
- CINBIO Universidade de Vigo Departamento de Química Orgánica 36310 Vigo España
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Stanovnik B. Enaminone, Enaminoesters, and Related Compounds in the Metal-Free Synthesis of Pyridines and Fused Pyridines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900797] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Branko Stanovnik
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Večna pot113 1000 Ljubljana Slovenia
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Xi YK, Zhang H, Li RX, Kang SY, Li J, Li Y. Total Synthesis of Spirotryprostatins through Organomediated Intramolecular Umpolung Cyclization. Chemistry 2019; 25:3005-3009. [DOI: 10.1002/chem.201806411] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Yong-Kai Xi
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan province, State Key Laboratory for, Conservation and Utilization of Bio-Resources in Yunnan; School of, Chemical Science and Technology; Yunnan University; Kunming Yunnan 650091 P. R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan province, State Key Laboratory for, Conservation and Utilization of Bio-Resources in Yunnan; School of, Chemical Science and Technology; Yunnan University; Kunming Yunnan 650091 P. R. China
| | - Rui-Xi Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan province, State Key Laboratory for, Conservation and Utilization of Bio-Resources in Yunnan; School of, Chemical Science and Technology; Yunnan University; Kunming Yunnan 650091 P. R. China
| | - Shi-Yuan Kang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan province, State Key Laboratory for, Conservation and Utilization of Bio-Resources in Yunnan; School of, Chemical Science and Technology; Yunnan University; Kunming Yunnan 650091 P. R. China
| | - Jin Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan province, State Key Laboratory for, Conservation and Utilization of Bio-Resources in Yunnan; School of, Chemical Science and Technology; Yunnan University; Kunming Yunnan 650091 P. R. China
| | - Yan Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan province, State Key Laboratory for, Conservation and Utilization of Bio-Resources in Yunnan; School of, Chemical Science and Technology; Yunnan University; Kunming Yunnan 650091 P. R. China
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Affiliation(s)
- Marino Petrini
- School of Science and Technology, Chemistry Division Università di Camerino Via S. Agostino, 1. 62032 Camerino Italy
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Prek B, Bezenšek J, Stanovnik B. Synthesis of pyridines with an amino acid residue by [2+2] cycloadditions of electron-poor acetylenes on enaminone systems derived from N -Boc protected amino acids. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Prek B, Bezenšek J, Počkaj M, Stanovnik B. Transformation of arylcarboxamides into 1,3-dioxo-1,3-dihydroisobenzofuran-4-carboxamides. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Šinkovec R, Grošelj U, Prek B, Počkaj M, Ričko S, Svete J, Stanovnik B. A simple synthesis of dimethyl 2-[(Z)-3-amino-1-oxo-1-(substituted)but-2-en-2-yl]fumarates: potential intermediates in the synthesis of polysubstituted five- and six-membered heterocycles. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2016. [DOI: 10.1515/znb-2016-0017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this communication, a simple synthesis of dimethyl 2-[(Z)-3-amino-1-oxo-1-(substituted)but-2-en-2-yl]fumarates is described. Methyl ketones were transformed by treatment with N,N-dimethylacetamide dimethyl acetal (DMADMA) into 3-dimethylamino-1-(substituted)but-2-en-1-ones, followed by treatment with ammonium acetate into (Z)-3-amino-1-(substituted)but-2-en-1-ones and addition to dimethyl acetylenedicarboxylate. These novel polysubstituted butadienes are potential intermediates for the metal-free preparation of polysubstituted five- and six-membered heterocycles.
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Affiliation(s)
- Rok Šinkovec
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , P.O. Box 537, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Uroš Grošelj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , P.O. Box 537, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Benjamin Prek
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , P.O. Box 537, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Marta Počkaj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , P.O. Box 537, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Sebastijan Ričko
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , P.O. Box 537, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Jurij Svete
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , P.O. Box 537, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Branko Stanovnik
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , P.O. Box 537, Večna pot 113, 1000 Ljubljana, Slovenia
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Bezenšek J, Prek B, Grošelj U, Počkaj M, Svete J, Stanovnik B. [2+2] Cycloadditions of electron-poor acetylenes to endocyclic enaminones: ring-expansion reactions. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Stanovnik B. [2+2] Cycloaddition of Electron-poor Acetylenes to Enaminones, Enamino Esters and Related Systems. Rearrangements and Ring-expansion Reactions. ORG PREP PROCED INT 2014. [DOI: 10.1080/00304948.2014.866468] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Dubey RK, Niemi M, Kaunisto K, Efimov A, Tkachenko NV, Lemmetyinen H. Direct Evidence of Significantly Different Chemical Behavior and Excited-State Dynamics of 1,7- and 1,6-Regioisomers of Pyrrolidinyl-Substituted Perylene Diimide. Chemistry 2013; 19:6791-806. [DOI: 10.1002/chem.201203387] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 02/01/2013] [Indexed: 11/12/2022]
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Regioselective synthesis of 3,3-bis(indolyl)propanoic acid derivatives by iron(III)-catalyzed hydroarylation of propynoic acid derivatives with indoles. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Martin RE, Polomska ME, Byrne LT, Stewart SG. An intramolecular Tsuji-Trost reaction based approach to the synthesis of 6-methylene indolizidines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Synthesis and structure of novel (S)-1,6-dialkylpiperazine-2,5-diones and (3S,6S)-1,3,6-trialkylpiperazine-2,5-diones. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.03.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kaur H, Heapy AM, Brimble MA. The synthesis of dehydrotryptophan and dehydrotryptophan-containing peptides. Org Biomol Chem 2011; 9:5897-907. [DOI: 10.1039/c1ob05777d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Uršič U, Svete J, Stanovnik B. Synthesis of 4-(2-hydroxy-1-methyl-5-oxo-1H-imidazol-4(5H)-ylidene)-5-oxo-1-aryl-4,5-dihydro-1H-pyrrole-3-carboxylates, a new triazafulvalene system. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bezenšek J, Koleša T, Grošelj U, Wagger J, Stare K, Meden A, Svete J, Stanovnik B. [2+2] Cycloaddition of electron-poor acetylenes to (E)-3-dimethylamino-1-heteroaryl-prop-2-en-1-ones: synthesis of highly functionalized 1-heteroaroyl-1,3-butadienes. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.106] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Stanovnik B, Uršič U, Svete J. Transformations of Dimethyl (2E,3E)-2-[(Dimethylamino)methylene]-3-(1-methyl-2,5-dioxoimidazolidin-4-ylidene)succinate with C-Nucleophiles. HETEROCYCLES 2010. [DOI: 10.3987/com-10-s(e)97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kralj D, Friedrich M, Grošelj U, Kiraly-Potpara S, Meden A, Wagger J, Dahmann G, Stanovnik B, Svete J. A synthesis of 1-substituted 5-[2-(acylamino)ethyl]-1H-pyrazole-4-carboxamides. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.06.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Baskovc J, Bevk D, Stanovnik B, Svete J. Bis-enaminone based parallel solution-phase synthesis of 1,4-dihydropyridine derivatives. ACTA ACUST UNITED AC 2009; 11:500-7. [PMID: 19397313 DOI: 10.1021/cc900032c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two variations of a parallel solution-phase synthesis of N-substituted dimethyl 4-oxo-1,4-dihydropyridine-3,5-dicarboxylates 4 and methyl 3-oxo-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxylates 9 from dimethyl acetone-1,3-dicarboxylate (1) were developed. The first synthetic method comprises preparation of the bis-enaminone reagents 2 and 8 and their cyclization with primary amines 3 via double substitution of both dimethylamino groups to give dihydropyridines (DHPs) 4 and 9, respectively. Another variation consists of preparation of the monoenaminone reagents 5 and 10, followed by substitution of the dimethylamino group with primary amines 3, and cyclization of the so formed intermediates 6 with N,N-dimethylformamide dimethylacetal (DMFDMA). In this manner, a library of 46 analytically pure compounds, 24 intermediates 6, 11, and 13, and 22 final dihydropyridines 4 and 9 was obtained employing just a simple filtration workup.
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Affiliation(s)
- Jernej Baskovc
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
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Ke YY, Li YJ, Jia JH, Sheng WJ, Han L, Gao JR. Efficient synthesis of β-enaminoesters via highly stereoselective Reformatsky reaction with disubstituted formamides as novel electrophiles. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.01.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Uršič U, Grošelj U, Meden A, Svete J, Stanovnik B. [2+2] Cycloadditions of Electron-Poor Acetylenes to (5Z)-5-[(Dimethylamino)methylene]imidazolidine-2,4-diones. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200800297] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Stanovnik B, Albreht A, Uršič U, Svete J. Transformations of Ethyl 2-Amino-4-(2-ethoxy-2-oxoethyl)thioazole-5-carboxylate into 5-Substituted 2-Amino-4-oxo-4,5-dihydrothiazolo[5,4-c]pyridine-7-carboxylates. HETEROCYCLES 2009. [DOI: 10.3987/com-09-11711] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Manlove A, Groziak MP. Chapter 6.2: Six-Membered Ring Systems: Diazines and Benzo Derivatives. PROGRESS IN HETEROCYCLIC CHEMISTRY 2009. [DOI: 10.1016/s0959-6380(09)70040-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Stanovnik B, Zupančič S, Svete J. Transformations of Diethyl 2-[(Dimethylamino)methylene]-3-oxopentanedioate. A Simple Synthesis of Substituted 2-Amino-5-oxo-5,6-dihydropyrido[4,3-d]pyrimidine-8-carboxylates. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(f)90] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Uršič U, Svete J, Stanovnik B. Transformations of (1E,3E)-1-(benzoylamino)-4-(dimethylamino)buta-1,3-diene-1,2,3-tricarboxylates into pyridine and pyrrole derivatives. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.109] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kralj D, Novak A, Dahmann G, Grošelj U, Meden A, Svete J. One-Pot Parallel Solution-Phase Synthesis of 1-Substituted 4-(2-Aminoethyl)-1H-pyrazol-5-ols. ACTA ACUST UNITED AC 2008; 10:664-70. [DOI: 10.1021/cc8000794] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- David Kralj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, P.O. Box 537, 1000 Ljubljana, Slovenia, and Department of Chemical Research, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach, Germany
| | - Ana Novak
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, P.O. Box 537, 1000 Ljubljana, Slovenia, and Department of Chemical Research, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach, Germany
| | - Georg Dahmann
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, P.O. Box 537, 1000 Ljubljana, Slovenia, and Department of Chemical Research, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach, Germany
| | - Uroš Grošelj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, P.O. Box 537, 1000 Ljubljana, Slovenia, and Department of Chemical Research, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach, Germany
| | - Anton Meden
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, P.O. Box 537, 1000 Ljubljana, Slovenia, and Department of Chemical Research, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach, Germany
| | - Jurij Svete
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, P.O. Box 537, 1000 Ljubljana, Slovenia, and Department of Chemical Research, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach, Germany
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Malavašič Č, Wagger J, Stanovnik B, Svete J. (S)-N-Benzyl-3(6)-methylpiperazine-2,5-diones as chiral solvating agents for N-acylamino acid esters. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.06.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Uršič U, Grošelj U, Meden A, Svete J, Stanovnik B. Regiospecific [2+2] cycloadditions of electron-poor acetylenes to (Z)-2-acylamino-3-dimethylaminopropenoates: synthesis of highly functionalised buta-1,3-dienes. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.04.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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