101
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Attanasi OA, De Crescentini L, Favi G, Mantellini F, Mantenuto S, Nicolini S. Interceptive [4 + 1] Annulation of in Situ Generated 1,2-Diaza-1,3-dienes with Diazo Esters: Direct Access to Substituted Mono-, Bi-, and Tricyclic 4,5-Dihydropyrazoles. J Org Chem 2014; 79:8331-8. [DOI: 10.1021/jo5016097] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Orazio A. Attanasi
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Lucia De Crescentini
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianfranco Favi
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Fabio Mantellini
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Serena Mantenuto
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Simona Nicolini
- Department of Biomolecular
Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
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102
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Gaonkar SL, Lokanatha Rai KM. Applications of Azoalkenes in the Synthesis of Fused Ring Pyridazine Derivatives. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Santosh L. Gaonkar
- Department of Chemistry, Manipal Institute of Technology; Manipal University; Manipal 576 104 India
- Department of Studies in Chemistry; University of Mysore; Mysore 570 006 India
| | - K. M. Lokanatha Rai
- Department of Studies in Chemistry; University of Mysore; Mysore 570 006 India
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103
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Attanasi OA, Favi G, Giorgi G, Majer R, Perrulli FR, Santeusanio S. Access to novel imidazo[1,5-a]pyrazine scaffolds by the combined use of a three-component reaction and a base-assisted intramolecular cyclization. Org Biomol Chem 2014; 12:4610-9. [PMID: 24848196 DOI: 10.1039/c4ob00676c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel and practical two-step approach to an intriguing class of imidazo[1,5-a]pyrazines with exocyclic C=X (X = CH2, O) bonds is described. The process utilizes a sequential three-component reaction of propargyl amine or aminoester, 1,2-diaza-1,3-dienes and isothiocyanates to furnish functionalized 2-thiohydantoins which are transformed into thiohydantoin-fused tetrahydropyrazines by subsequent regioselective base-promoted cyclization.
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Affiliation(s)
- Orazio A Attanasi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy.
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104
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Catalytic Asymmetric Synthesis of [2,3]-Fused Indoline Heterocycles through Inverse-Electron-Demand Aza-Diels-Alder Reaction of Indoles with Azoalkenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400109] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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105
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Tong MC, Chen X, Li J, Huang R, Tao H, Wang CJ. Catalytic Asymmetric Synthesis of [2,3]-Fused Indoline Heterocycles through Inverse-Electron-Demand Aza-Diels-Alder Reaction of Indoles with Azoalkenes. Angew Chem Int Ed Engl 2014; 53:4680-4. [DOI: 10.1002/anie.201400109] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Indexed: 12/17/2022]
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106
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Hu XQ, Chen JR, Wei Q, Liu FL, Deng QH, You-Quan Zou, Xiao WJ. Efficient Synthesis of Dihydropyrazoles by Halocyclization of β,γ-Unsaturated Hydrazones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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107
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Majer R, Konechnaya O, Delso I, Tejero T, Attanasi OA, Santeusanio S, Merino P. Highly diastereoselective 1,3-dipolar cycloadditions of chiral non-racemic nitrones to 1,2-diaza-1,3-dienes: an experimental and computational investigation. Org Biomol Chem 2014; 12:8888-901. [DOI: 10.1039/c4ob01371a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric 1,3-dipolar cycloadditions between 1,2-diaza-1,3-dienes and chiral non-racemic nitrones to give 3-substituted-5-diazenyl isoxazolidines were studied.
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Affiliation(s)
- Roberta Majer
- Laboratorio de Síntesis Asimétrica
- Departamento de Síntesis y Estructura de Biomoléculas
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza
- CSIC
| | - Olga Konechnaya
- Laboratorio de Síntesis Asimétrica
- Departamento de Síntesis y Estructura de Biomoléculas
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza
- CSIC
| | - Ignacio Delso
- Laboratorio de Síntesis Asimétrica
- Departamento de Síntesis y Estructura de Biomoléculas
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza
- CSIC
| | - Tomas Tejero
- Laboratorio de Síntesis Asimétrica
- Departamento de Síntesis y Estructura de Biomoléculas
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza
- CSIC
| | - Orazio A. Attanasi
- Dipartimento di Scienze Biomolecolare Sezione di Chimica Organica e dei Composti Organici Naturali
- Universitá degli Studi di Urbino “Carlo Bo”
- 61029 Urbino, Italy
| | - Stefania Santeusanio
- Dipartimento di Scienze Biomolecolare Sezione di Chimica Organica e dei Composti Organici Naturali
- Universitá degli Studi di Urbino “Carlo Bo”
- 61029 Urbino, Italy
| | - Pedro Merino
- Laboratorio de Síntesis Asimétrica
- Departamento de Síntesis y Estructura de Biomoléculas
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza
- CSIC
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108
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Gao S, Chen J, Hu X, Cheng H, Lu L, Xiao W. Copper‐Catalyzed Enantioselective Inverse Electron‐Demand Hetero‐Diels–Alder Reactions of Diazadienes with Enol Ethers: Efficient Synthesis of Chiral Pyridazines. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300723] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shuang Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, People's Republic of China and Collaborative Center of Chemical Science and Engineering (Tianjin), People's Republic of China, Fax: (+86)‐27‐6786‐2041; phone: (+86)‐27‐67862041
| | - Jia‐Rong Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, People's Republic of China and Collaborative Center of Chemical Science and Engineering (Tianjin), People's Republic of China, Fax: (+86)‐27‐6786‐2041; phone: (+86)‐27‐67862041
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, 693 Xiongchu Road, Wuhan, Hubei 430079, People's Republic China
| | - Xiao‐Qiang Hu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, People's Republic of China and Collaborative Center of Chemical Science and Engineering (Tianjin), People's Republic of China, Fax: (+86)‐27‐6786‐2041; phone: (+86)‐27‐67862041
| | - Hong‐Gang Cheng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, People's Republic of China and Collaborative Center of Chemical Science and Engineering (Tianjin), People's Republic of China, Fax: (+86)‐27‐6786‐2041; phone: (+86)‐27‐67862041
| | - Liang‐Qiu Lu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, People's Republic of China and Collaborative Center of Chemical Science and Engineering (Tianjin), People's Republic of China, Fax: (+86)‐27‐6786‐2041; phone: (+86)‐27‐67862041
| | - Wen‐Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, People's Republic of China and Collaborative Center of Chemical Science and Engineering (Tianjin), People's Republic of China, Fax: (+86)‐27‐6786‐2041; phone: (+86)‐27‐67862041
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109
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Attanasi OA, Bianchi L, Campisi LA, Crescentini LD, Favi G, Mantellini F. A Novel Solvent-Free Approach to Imidazole Containing Nitrogen-Bridgehead Heterocycles. Org Lett 2013; 15:3646-9. [DOI: 10.1021/ol4015267] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Orazio A. Attanasi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Luca Bianchi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Linda A. Campisi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Lucia De Crescentini
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
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110
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Attanasi OA, Favi G, Geronikaki A, Mantellini F, Moscatelli G, Paparisva A. Synthesis of Densely Functionalized 3a,4-Dihydro-1H-Pyrrolo[1,2-b]Pyrazoles via Base Mediated Domino Reaction of Vinyl Malononitriles with 1,2-Diaza-1,3-dienes. Org Lett 2013; 15:2624-7. [DOI: 10.1021/ol401336s] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Orazio A. Attanasi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy, and School of Pharmacy, Department of Pharmaceutical Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Gianfranco Favi
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy, and School of Pharmacy, Department of Pharmaceutical Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Athina Geronikaki
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy, and School of Pharmacy, Department of Pharmaceutical Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Fabio Mantellini
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy, and School of Pharmacy, Department of Pharmaceutical Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Giada Moscatelli
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy, and School of Pharmacy, Department of Pharmaceutical Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Aliki Paparisva
- Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy, and School of Pharmacy, Department of Pharmaceutical Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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111
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Formal [4+1] cycloaddition of camphor-derived sulfonium salts with aldimines: enantioselective synthesis of 2,3-dihydrobenzofurans. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.03.059] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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112
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A facile synthesis of deaza-analogues of the bisindole marine alkaloid topsentin. Molecules 2013; 18:2518-27. [PMID: 23442928 PMCID: PMC6269752 DOI: 10.3390/molecules18032518] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 01/31/2013] [Accepted: 02/07/2013] [Indexed: 11/17/2022] Open
Abstract
A series of substituted ethyl 1-[(tert-butoxycarbonyl)amino]-2-methyl-5-(1-methyl-1H-indol-3-yl)-4-[(1-methyl-1H-indol-3-yl)carbonyl]-1H-pyrrole-3-carboxylates were prepared in excellent yields (82-98%) by one-pot reactions between β-dicarbonyl compounds 12a–e and 1,2-diaza-1,3-diene (DD) 13. Derivatives 10a,c–e, deazaanalogues of the bis-indole alkaloid topsentin, screened by the National Cancer Institute (Bethesda, MD, USA) in the in vitro one dose primary anticancer assay against a panel of about 60 human tumor cell lines, showed no significant activity, with the exception of compound 9e, which showed moderate activity against the HOP-92 cell line of the non small cell lung cancer sub-panel and the SNB-75 cell line of the CNS sub-panel.
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113
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Hu XQ, Chen JR, Gao S, Feng B, Lu LQ, Xiao WJ. [4+3] Cycloaddition of in situ generated azoalkenes with C,N-cyclic azomethine imines: efficient synthesis of tetrazepine derivatives. Chem Commun (Camb) 2013; 49:7905-7. [DOI: 10.1039/c3cc43888k] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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114
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Attanasi OA, Bartoccini S, Favi G, Filippone P, Perrulli FR, Santeusanio S. Tandem Aza-Wittig/Carbodiimide-Mediated Annulation Applicable to 1,2-Diaza-1,3-dienes for the One-Pot Synthesis of Fully Substituted 1,2-Diaminoimidazoles. J Org Chem 2012; 77:9338-43. [DOI: 10.1021/jo301376z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Orazio A. Attanasi
- Dipartimento
DiSteVa, Sezione COSON, Università degli Studi di Urbino “Carlo Bo”, Via
I Maggetti 24, 61029 Urbino, Italy
| | - Silvia Bartoccini
- Dipartimento
DiSteVa, Sezione COSON, Università degli Studi di Urbino “Carlo Bo”, Via
I Maggetti 24, 61029 Urbino, Italy
| | - Gianfranco Favi
- Dipartimento
DiSteVa, Sezione COSON, Università degli Studi di Urbino “Carlo Bo”, Via
I Maggetti 24, 61029 Urbino, Italy
| | - Paolino Filippone
- Dipartimento
DiSteVa, Sezione COSON, Università degli Studi di Urbino “Carlo Bo”, Via
I Maggetti 24, 61029 Urbino, Italy
| | - Francesca Romana Perrulli
- Dipartimento
DiSteVa, Sezione COSON, Università degli Studi di Urbino “Carlo Bo”, Via
I Maggetti 24, 61029 Urbino, Italy
| | - Stefania Santeusanio
- Dipartimento
DiSteVa, Sezione COSON, Università degli Studi di Urbino “Carlo Bo”, Via
I Maggetti 24, 61029 Urbino, Italy
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115
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Lopes SMM, Brigas AF, Palacios F, Lemos A, Pinho e Melo TMVD. [4+2] Cycloadditions of 3-Tetrazolyl-1,2-diaza-1,3-butadienes: Synthesis of 3-Tetrazolyl-1,4,5,6-tetrahydropyridazines. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101826] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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116
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Attanasi OA, Bartoccini S, Favi G, Giorgi G, Perrulli FR, Santeusanio S. Powerful approach to heterocyclic skeletal diversity by sequential three-component reaction of amines, isothiocyanates, and 1,2-diaza-1,3-dienes. J Org Chem 2012; 77:1161-7. [PMID: 22191418 DOI: 10.1021/jo2021949] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By highly efficient, one-pot, three-component reactions, combining one set of 1,2-diaza-1,3-dienes (DDs), primary amines, and isothiocyanates in a different sequential order of addition, heterocyclic skeletal diversity can be achieved. The key feature discriminating the different heterocyclic core formation is the availability of the N or S heteronucleophile to give the first Michael addition step affording regioselective substituted 2-thiohydantoins or 2-iminothiazolidinones. The hydrazone or enehydrazino side chain at the 5-position of both heterocycles represents a valuable functionality to reach novel 5-hydroxyethylidene derivatives difficult to obtain by other methods.
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Affiliation(s)
- Orazio A Attanasi
- Dipartimento SteVa, Sezione COSON, Università degli Studi di Urbino Carlo Bo, Via I Maggetti 24, 61029 Urbino, Italy
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117
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Attanasi OA, Bartoccini S, Favi G, Giorgi G, Perrulli FR, Santeusanio S. Investigation on the reactivity of isoxazol-5-ones towards 1,2-diaza-1,3-dienes: new entry to variously substituted (imidazol-2-yl)acetate and 1,3-oxazin-6-one derivatives. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.10.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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118
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Attanasi OA, De Crescentini L, Favi G, Mantellini F, Nicolini S. Divergent regioselective synthesis of 2,5,6,7-tetrahydro-1H-1,4-diazepin-2-ones and 5H-1,4-benzodiazepines. J Org Chem 2011; 76:8320-8. [PMID: 21905699 DOI: 10.1021/jo201497r] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel and simple one-pot synthesis of 3-substituted 2,5,6,7-tetrahydro-1H-1,4-diazepin-2-ones from 1,2-diaza-1,3-dienes (DDs) and N-unsubstituted aliphatic 1,3-diamines is described. Here we also report a procedure to selectively obtain alkyl 5H-1,4-benzodiazepine-3-carboxylates from the DDs and 2-aminobenzylamine. Both processes occur by means of sequential 1,4-conjugated addition followed by regioselective 7-exo cyclization. The behavior of N-methyl- and N,N'-dimethyl-1,3-diaminopropanes toward the DDs furnished pyrazol-3-ones and bis-α-aminohydrazones, respectively.
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Affiliation(s)
- Orazio A Attanasi
- Istituto di Chimica Organica, Università degli Studi di Urbino Carlo Bo, Via I Maggetti 24, 61029 Urbino, Italy
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119
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Battistini L, Dell'Amico L, Sartori A, Curti C, Pelosi G, Casiraghi G, Attanasi OA, Favi G, Zanardi F. On-Water Vinylogous Mukaiyama-Michael Addition of Heterocyclic 2-Silyloxydienes to 1,2-Diaza-1,3-dienes: One-Pot Three-Step Entry to Functionality-Rich Pyrroles. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100296] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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120
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Attanasi OA, Favi G, Mantellini F, Moscatelli G, Santeusanio S. A Novel Assembly of Substituted Pyrroles by Acid-Catalyzed Sequential Three-Component Reaction of Amines, Alkynoates, and 1,2-Diaza-1,3-dienes. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100094] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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121
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Attanasi OA, Favi G, Mantellini F, Moscatelli G, Santeusanio S. Synthesis of Functionalized Pyrroles via Catalyst- and Solvent-Free Sequential Three-Component Enamine−Azoene Annulation. J Org Chem 2011; 76:2860-6. [DOI: 10.1021/jo200287k] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Orazio A. Attanasi
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianfranco Favi
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Fabio Mantellini
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Giada Moscatelli
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Stefania Santeusanio
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
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122
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Witek JA, Weinreb SM. Investigation of the stereochemistry of intermolecular conjugate additions of nucleophiles to acyclic nitrosoalkenes. Org Lett 2011; 13:1258-60. [PMID: 21294528 PMCID: PMC3046371 DOI: 10.1021/ol2000793] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Michael-type conjugate additions of γ-chiral aldehyde-derived acyclic nitrosoalkenes have been explored using a series of carbon and hetero nucleophiles. In all cases examined, these reactions are stereoselective, leading exclusively to the anti products.
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Affiliation(s)
- Jason A. Witek
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Steven M. Weinreb
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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Boga C, Zanna N, Attanasi OA, Baccolini G, De Crescentini L, Forlani L, Mantellini F, Nicolini S, Micheletti G, Tozzi S. Phospha-Michael-Type Reactions between 1,2-Diaza-1,3-dienes and Bidentate Nucleophiles: Formation of New Mono- and Diylides and their Elaboration to Heterocycles. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001453] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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124
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Attanasi OA, Crescentini LD, Favi G, Nicolini S, Perrulli FR, Santeusanio S. 1,3,5-Trisubstituted and 5-Acyl-1,3-Disubstituted Hydantoin Derivatives via Novel Sequential Three-Component Reaction. Org Lett 2010; 13:353-5. [DOI: 10.1021/ol102664n] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Orazio A. Attanasi
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Lucia De Crescentini
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianfranco Favi
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Simona Nicolini
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Francesca Romana Perrulli
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Stefania Santeusanio
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
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Kanzian T, Nicolini S, De Crescentini L, Attanasi OA, Ofial AR, Mayr H. Electrophilic Reactivities of 1,2‐Diaza‐1,3‐dienes. Chemistry 2010; 16:12008-16. [DOI: 10.1002/chem.201000828] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tanja Kanzian
- Department Chemie der Ludwig‐Maximilians‐Universität München, Butenandtstr. 5–13, 81377 München (Germany), Fax: (+49) 89‐2180‐9977715
| | - Simona Nicolini
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU) (Italy), Fax: (+39) 0722‐303441
| | - Lucia De Crescentini
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU) (Italy), Fax: (+39) 0722‐303441
| | - Orazio A. Attanasi
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU) (Italy), Fax: (+39) 0722‐303441
| | - Armin R. Ofial
- Department Chemie der Ludwig‐Maximilians‐Universität München, Butenandtstr. 5–13, 81377 München (Germany), Fax: (+49) 89‐2180‐9977715
| | - Herbert Mayr
- Department Chemie der Ludwig‐Maximilians‐Universität München, Butenandtstr. 5–13, 81377 München (Germany), Fax: (+49) 89‐2180‐9977715
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126
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Attanasi OA, Berretta S, De Crescentini L, Favi G, Filippone P, Giorgi G, Mantellini F. Divergent base-induced reactivity of cycloalkenyl-1-diazenes. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.06.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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127
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Attanasi OA, Bartoccini S, Giorgi G, Mantellini F, Perrulli FR, Santeusanio S. Study of the nucleophilic behaviour of N-phenylbenzamidine towards 1,2-diaza-1,3-dienes: domino reactions for imidazole scaffolds. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.108] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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128
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Preti L, Attanasi OA, Caselli E, Favi G, Ori C, Davoli P, Felluga F, Prati F. One-Pot Synthesis of Imidazole-4-Carboxylates by Microwave-Assisted 1,5-Electrocyclization of Azavinyl Azomethine Ylides. European J Org Chem 2010; 2010. [PMID: 24273445 DOI: 10.1002/ejoc.201000434] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Diversely functionalized imidazole-4-carboxylates were synthesized by microwave-assisted 1,5-eletrocyclization of 1,2-diaza-1,3-diene-derived azavinyl azomethine ylides. 1,2-Diaza-1,3-dienes were treated with primary aliphatic or aromatic amines and subjected to microwave irradiation in the presence of aldehydes. 3-Alkyl- and 3-arylimidazole-4-carboxylates were prepared in good yields through a one-pot multicomponent procedure. Modulation of the substituents at C-2, N-3 and C-5 was possible, and 2-unsubstituted imidazoles were obtained when paraformaldehyde was used.
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Affiliation(s)
- Lisa Preti
- Dipartimento di Chimica, Università degli Studi di Modena e Reggio Emilia, Via Campi 183, 41100 Modena, Italy
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129
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Attanasi OA, Favi G, Filippone P, Mantellini F, Moscatelli G, Perrulli FR. Copper(II)/Copper(I)-Catalyzed Aza-Michael Addition/Click Reaction of in Situ Generated α-Azidohydrazones: Synthesis of Novel Pyrazolone−Triazole Framework. Org Lett 2009; 12:468-71. [DOI: 10.1021/ol902642z] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Orazio A. Attanasi
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Gianfranco Favi
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Paolino Filippone
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Fabio Mantellini
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Giada Moscatelli
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
| | - Francesca R. Perrulli
- Istituto di Chimica Organica, Università degli Studi di Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino (PU), Italy
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