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Bede F, Mahó S, Sándor V, Mikle G, Kollár L. Carboxamide formation in less favoured positions: Facile synthesis of 7-carboxamidochenodeoxycholanic acid derivatives. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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2
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Rathod GK, Jain R. Palladium-Catalyzed Aminocarbonylation of (Hetero)aryl Iodides with α-Amino Acid Esters as Nucleophiles. J Org Chem 2022; 87:8005-8016. [PMID: 35657297 DOI: 10.1021/acs.joc.2c00635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We report palladium-catalyzed aminocarbonylation of (hetero)aryl iodides with α-amino acid esters as nucleophiles. The synthesized N-capped α-amino acids are biologically important building blocks. The mild conditions provide products with high enantioselectivity at 80 °C in 35 min. The reactions are performed under air in a sealed vessel using chloroform as an in situ CO source. For the first time, regioselective carbonylation of histidine is also presented.
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Affiliation(s)
- Gajanan K Rathod
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Sector 67, S. A. S. Nagar, Punjab 160 062, India
| | - Rahul Jain
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Sector 67, S. A. S. Nagar, Punjab 160 062, India
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Kégl TR, Mika LT, Kégl T. 27 Years of Catalytic Carbonylative Coupling Reactions in Hungary (1994-2021). Molecules 2022; 27:460. [PMID: 35056775 PMCID: PMC8778209 DOI: 10.3390/molecules27020460] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/06/2022] [Accepted: 01/08/2022] [Indexed: 12/03/2022] Open
Abstract
Palladium-catalyzed carbonylation reactions, in the presence of nucleophiles, serve as very potent tools for the conversion of aryl and alkenyl halides or halide equivalents to carboxylic acid derivatives or to other carbonyl compounds. There are a vast number of applications for the synthesis of simple building blocks as well as for the functionalization of biologically important skeletons. This review covers the history of carbonylative coupling reactions in Hungary between the years 1994 and 2021.
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Affiliation(s)
- Tímea R. Kégl
- Department of Inorganic Chemistry and ELKH-PTE Research Group for Selective Chemical Syntheses, University of Pécs, Ifjúság útja 6., H-7624 Pécs, Hungary;
- Department of Inorganic Chemistry and János Szentágothai Research Centre, University of Pécs, Ifjúság útja 6., H-7624 Pécs, Hungary
| | - László T. Mika
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary;
| | - Tamás Kégl
- Department of Inorganic Chemistry and ELKH-PTE Research Group for Selective Chemical Syntheses, University of Pécs, Ifjúság útja 6., H-7624 Pécs, Hungary;
- Department of Inorganic Chemistry and János Szentágothai Research Centre, University of Pécs, Ifjúság útja 6., H-7624 Pécs, Hungary
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Synthesis of novel pregnane-based 20-carboxamides via palladium-catalysed aminocarbonylation. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01478-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract20-Carboxamidopregnene derivatives, such as 3β-acetoxy-5α-pregn-20-ene-20-carboxamides and 5α-pregn-20-ene-20-carboxamides were synthesized from the widely accessible 3β-acetoxy-pregn-5,16-dien-20-one (PDA) using selective hydrogenation, hydrazine and iodoalkene formation, as well as palladium-catalysed aminocarbonylation. The 20-iodo-20-ene derivatives, obtained from the corresponding 20-keto derivatives via their hydrazones, served as substrates. 23 new 20-carboxamides were obtained using various N-nucleophiles ranging from simple primary amines to α-amino acid esters. The novelty of this methodology lies in the application of facile, moderate or high-yielding reactions to obtain otherwise hardly accessible steroidal 20-carboxamides of pharmaceutical importance. In other words, instead of the enzymatic or synthetic degradation of e.g., sterols or cholanic acids, functionalization of the basic skeleton (a ‘building-up’ approach) was used.
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Czajkowska-Szczykowska D, Morzycki JW, Wojtkielewicz A. Pd-catalyzed steroid reactions. Steroids 2015; 97:13-44. [PMID: 25173819 DOI: 10.1016/j.steroids.2014.07.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/07/2014] [Accepted: 07/30/2014] [Indexed: 01/17/2023]
Abstract
We review the most important achievements of the last decade in the field of steroid synthesis in the presence of palladium catalysts. Various palladium-catalyzed cross-coupling reactions, including Heck, Suzuki, Stille, Sonogashira, Negishi and others, are exemplified with steroid transformations.
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Affiliation(s)
| | - Jacek W Morzycki
- Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399 Białystok, Poland.
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Kiss M, Mahó S, Böddi K, Boros B, Kollár L. Palladium-catalyzed diaminocarbonylation: synthesis of androstene dimers containing 3,3′- or 17,17′-dicarboxamide spacers. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1375-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kiss M, Pálinkás N, Takács A, Mahó S, Kollár L. A systematic approach to the synthesis of androstane-based 3,17-dicarboxamides (homo- and mixed dicarboxamides) via palladium-catalyzed aminocarbonylation. Steroids 2013; 78:693-9. [PMID: 23499827 DOI: 10.1016/j.steroids.2013.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Revised: 02/14/2013] [Accepted: 02/26/2013] [Indexed: 11/15/2022]
Abstract
3,17-Dicarboxamido-androst-3,5,16-triene derivatives possessing various amine moieties were synthesized under mild conditions using palladium-catalyzed homogeneous aminocarbonylation as key reaction. Compounds containing the corresponding iodoalkene functionalities, i.e., 17-iodo-16-ene and 3-iodo-3,5-diene structural motifs, were used in the aminocarbonylation and the N-nucleophiles were varied systematically. Three amines, such as tert-butylamine, piperidine and methyl alaninate were used as N-nucleophiles in the aminocarbonylation. All variations of 3,17-dicarboxamides were synthesized using this methodology. Androst-4-ene-3,17-dione was used as starting material. The synthetic strategy of the multistep synthesis was based on the systematic variation and consecutive use of three different reactions: (i) the protection/deprotection of one of the keto functionalities (3-one or 17-one) as ethylene ketals, (ii) the transformation of the other keto group to iodoalkene functionality via its hydrazone, and (iii) palladium-catalyzed aminocarbonylation of the iodoalkene functionality.
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Affiliation(s)
- Mercédesz Kiss
- Department of Inorganic Chemistry and Szentágothai Research Center, University of Pécs, Ifjúság u. 6, H-7624 Pécs, Hungary
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Kotora M, Hessler F, Eignerová B. Transition‐Metal‐Mediated or ‐Catalyzed Syntheses of Steroids and Steroid‐Like Compounds. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100921] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Martin Kotora
- Dept. of Organic and Nuclear Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 12843 Praha 2, Czech Republic, Fax: +420‐221‐951‐326
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, 166 10 Praha 6, Czech Republic
| | - Filip Hessler
- Dept. of Organic and Nuclear Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 12843 Praha 2, Czech Republic, Fax: +420‐221‐951‐326
| | - Barbara Eignerová
- Dept. of Organic and Nuclear Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 12843 Praha 2, Czech Republic, Fax: +420‐221‐951‐326
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Szánti-Pintér E, Balogh J, Csók Z, Kollár L, Gömöry A, Skoda-Földes R. Synthesis of steroid-ferrocene conjugates of steroidal 17-carboxamides via a palladium-catalyzed aminocarbonylation--copper-catalyzed azide-alkyne cycloaddition reaction sequence. Steroids 2011; 76:1377-82. [PMID: 21787798 DOI: 10.1016/j.steroids.2011.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Revised: 05/30/2011] [Accepted: 07/12/2011] [Indexed: 11/28/2022]
Abstract
Steroids with the 17-iodo-16-ene functionality were converted to ferrocene labeled steroidal 17-carboxamides via a two step reaction sequence. The first step involved the palladium-catalyzed aminocarbonylation of the alkenyl iodides with prop-2-yn-1-amine as the nucleophile in the presence of the Pd(OAc)(2)/PPh(3) catalyst system. In the second step, the product N-(prop-2-ynyl)-carboxamides underwent a facile azide-alkyne cycloaddition with ferrocenyl azides in the presence of CuSO(4)/sodium ascorbate to produce the steroid-ferrocene conjugates. The new compounds were obtained in good yield and were characterized by (1)H and (13)C NMR, IR, MS and elemental analysis.
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Affiliation(s)
- Eszter Szánti-Pintér
- University of Veszprém, Institute of Chemistry, Department of Organic Chemistry, Egyetem u. 10. (P.O. Box 158) H-8200 Veszprém, Hungary
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Acs P, Takács A, Kiss M, Pálinkás N, Mahó S, Kollár L. Systematic investigation on the synthesis of androstane-based 3-, 11- and 17-carboxamides via palladium-catalyzed aminocarbonylation. Steroids 2011; 76:280-90. [PMID: 21130794 DOI: 10.1016/j.steroids.2010.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Revised: 11/18/2010] [Accepted: 11/29/2010] [Indexed: 11/25/2022]
Abstract
3,17-Dicarboxamido-androst-3,5,16-triene, 3-carboxamido-androst-3,5-dien-17-one, 17-carboxamido-androst-4,16-dien-3-one and 11-carboxamido-androst-5,9(11)-dien-3,17-dione derivatives were synthesized in homogeneous carbonylation reactions from the corresponding 3,17-diiodo-androst-3,5,16-triene, 3-iodo-androst-3,5-diene-17-ethylene ketal, 17-iodo-androst-5,16-dien-3-ethylene ketal, 11-iodo-androst-5,9(11)-diene-3,17-bis(ethylene ketal) derivatives, respectively. A highly chemoselective palladium-catalyzed aminocarbonylation of the corresponding iodo-alkene, carried out under mild reaction conditions, can be considered as the key-step for the introduction of the carboxamide functionalities. The synthesis of the iodo-alkene substrate is based on the transformation of the corresponding keto derivative to hydrazone, which was treated with iodine in the presence of a base (1,1,3,3-tetramethyl guanidine). The aminocarbonylation reaction is highly tolerant towards the N-nucleophiles, i.e. various primary and secondary amines including amino acid methyl esters can also be used.
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Affiliation(s)
- Péter Acs
- University of Pécs, Department of Inorganic Chemistry, Pécs, Hungary
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Takács A, Acs P, Berente Z, Wölfling J, Schneider G, Kollár L. Novel 13β- and 13α-D-homo steroids: 17a-carboxamido-D-homoestra-1,3,5(10),17-tetraene derivatives via palladium-catalyzed aminocarbonylations. Steroids 2010; 75:1075-81. [PMID: 20633571 DOI: 10.1016/j.steroids.2010.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Revised: 06/29/2010] [Accepted: 07/05/2010] [Indexed: 10/19/2022]
Abstract
17a-Methoxycarbonyl- and 17a-carboxamido-D-homoestra-1,3,5(10),17-tetraene derivatives were synthesized by palladium-catalyzed carbonylation reactions of the corresponding 17a-iodo-D-homoestra-1,3,5(10),17-tetraene derivatives using methanol and various amines as O- and N-nucleophiles, respectively. Both the natural (13β) and the epi (13α) series of compounds were isolated. The 17a-iodo-17-ene functionalities in the two 13-epimer series differ in reactivity. While the aminocarbonylations were practically complete in the 13β series in reasonable reaction time under mild conditions and high isolated yields were achieved, the corresponding 13α-17a-iodo-17-ene substrate has shown decreased reactivity resulting in moderate to low yields. However, under high carbon monoxide pressure (40 bar) excellent yields can be obtained even in the 13α series. The aminocarbonylation was completely chemoselective in both series, i.e., the corresponding 17a-carboxamido-17-ene derivatives were formed exclusively.
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Affiliation(s)
- Attila Takács
- Department of Inorganic Chemistry, University of Pécs, Pécs, Hungary
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Affiliation(s)
- James R Hanson
- Department of Chemistry, University of Sussex, Brighton, Sussex, BN1 9QJ, UK
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Acs P, Takács A, Szilágyi A, Wölfling J, Schneider G, Kollár L. The synthesis of 17-alkoxycarbonyl- and 17-carboxamido-13alpha-estra-1,3,5(10),16-tetraene derivatives via palladium-catalyzed carbonylation reactions. Steroids 2008; 73:669-75. [PMID: 18367222 DOI: 10.1016/j.steroids.2008.02.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 02/02/2008] [Accepted: 02/10/2008] [Indexed: 11/27/2022]
Abstract
17-Alkoxycarbonyl- and 17-carboxamido-13alpha-estra-1,3,5(10),16-tetraenes were synthesized from the 17-iodo-13alpha-estra-1,3,5(10),16-tetraene derivative in palladium-catalyzed alkoxycarbonylation and aminocarbonylation reactions, respectively. The synthesis of the 17-iodo-16-ene derivative, used as substrate, is based on the transformation of the 17-keto derivative (epiestrone methyl ether) to hydrazone, which was treated with iodine in the presence of a base (1,1,3,3-tetramethyl guanidine). 17-Carboxamides were obtained in good yields (up to 88%) not only with simple alkyl/aryl amines but also with amino acid methyl esters as N-nucleophiles. The use of alcohols as O-nucleophiles in alkoxycarbonylation resulted in the corresponding 17-esters; however, yields of synthetic interest were obtained only with methanol.
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Affiliation(s)
- Péter Acs
- University of Pécs, Department of Inorganic Chemistry, Ifjúság u. 6, H-7624 Pécs, Hungary
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