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Department Farmaco-ChimicoFaculty of PharmacyUniversity of Bari “Aldo Moro”Via E. Orabona 4I-70125 Bari (Italy) Phone (+39) 080 5442174 Fax (+39) 080 5442539 E-mail: capriati@farmchim.uniba.it
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MILESTONES
Born 1965; M.S. honours degree in Chemistry and Pharmaceutical Technology, University of Bari (I) 1990; Forensic chemist officer, Carabinieri’s RIS (Scientific Investigation Department of Rome) 1991; CNR fellowship 1992-1993; NATO research grant 1993-1995, 1995-1997; University of Bari Assistant Professor 1993-2002; University of Bari Associate Professor in Organic Chemistry 2002-present; C.I.N.M.P.I.S. Prize “Innovation in Organic Synthesis” 2009.
Born in Bari in 1965, he obtained a degree (M.S., 5-year degree course) in Chemistry and Pharmaceutical Technology from the University of Bari with honors (1990, mentor: Prof. Leonardo Di Nunno). In 1991 he got his qualification exam for the profession of Pharmacist. Forensic chemist officer at Carabinieri’s RIS (Scientific Investigation Department of Rome) (1991). CNR (National Research Council) fellowship within “M.I.S.O.” (Innovative Methodologies in Organic Synthesis) centre, then merged into “I.C.C.O.M.” (Institute of Chemistry of Organometallic Compounds), Bari (1992-1993, supervisor: Prof. Francesco Naso). Joined the Farmaco-Chimico Department Department (Faculty of Pharmacy) of the University of Bari in December 1993 as Assistant Professor in Organic Chemistry, he started a scientific collaboration with Prof. Saverio Florio in the field of Organometallic Chemistry. In October 2002, he was appointed Associate Professor in Organic Chemistry at the University of Bari. Visiting Scientist, Department of Chemistry (Prof. Gideon Fraenkel), Ohio State University (Columbus, OH, USA) (2001). Visiting Associate Professor, Department of Chemistry (Proff. Per Ahlberg and Mohamed Amedjkouh), Gothenburg University (Göteborg, Sweden) (2003). Recipient of the C.I.N.M.P.I.S. Prize “Innovation in Organic Synthesis” awarded by the Interuniversities Consortium C.I.N.M.P.I.S (2009).
Currently, his teaching duties are: Organic Chemistry (Master degreee course in Pharmacy (5-yr degree course) (since 2003);, Chemistry of Organic Natural Products (Master degree courses in Pharmacy and Chemistry and Pharmaceutical Technology (both 5-yr degree courses), Bachelor degree course in Herbal Medicine (3-yr degree course)) (since 1997); monographic courses on Organolithium Chemistry and Reaction Mechanisms for both the Doctorate Schools in “Chemical and Molecular Sciences” (Board of Directors’ member) and “Pharmaceutical Sciences”.
Co-author in the english-to-italian translation of 2 university textbooks of Organic Chemistry, 76 papers in peer-reviewed international scientific journals (including 4 Reviews) (H index of 17 and more than 850 citations), 2 editor-reviewed book chapters, 2 editor-reviewed specialized monographies and more than 110 communications at national and international meetings.
Application reviewer for MIUR-italian Ministry of University and Research and peer-reviewer for many international scientific journals of American Chemical Society, Wiley-WCH and Bentham. He has been involved in the past ten years in many national research projects mainly from MIUR. Founding member of the academic spin-off "Synchimia" at the University of Bari which has the purpose to synthesize either optically active pharmaceutical targets or innovative material and nanomaterial useful for fotonics and electronics.
His current research interests revolve around organolithiums and lithium carbenoids chemistry: elucidation of the structure-reactivity relationship and their dynamic behaviour in solution by means of ab initio calculations and multinuclear magnetic resonance investigations; mechanistic studies; mechanisms of racemization of chiral organolithiums; asymmetric synthesis of highly strained functionalized small-ring cycles (cyclopropanes, oxiranes and aziridines) as well as of new heterocycles and building blocks of pharmaceutical interest; synthesis of enantiomerically or diastereomerically enriched alkyllithium compounds in which the lithiated carbon is a stereogenic center.
Other interests involve: asymmetric synthesis and catalysis promoted by both chiral nonracemic heteroaggregates and N-heterocyclic carbene complexes; application of lithium chemistry in medicine and in the field of material sciences; polifunctional organoboron compounds and their applications as oligotopic aryl nucleophiles for Suzuki-Miyaura-type cross-couplings and in the field of material sciences; organofluorine chemistry.
Besides chemistry, he also enjoys trekking, golf, collecting stamps, playing chess and acting as Volunteer Translator for EURORDIS (The European Organization for Rare Deseases) whose end is to empower rare disease organizations, patients and families throughout Europe so as to contribute in building a rare disease community across national and linguistic lines.
Recent scientific interests mainly revolve around organolithiums and lithium carbenoids chemistry. Mechanistic studies on reactive intermediates such as oxiranyllithiums and ortho lithiated aryloxiranes as well as their employment in asymmetric synthesis to get highly strained functionalized small-ring cycles (cyclopropanes, oxiranes, aziridines), new heterocycles and buiding blocks of pharmaceutical interest are also currenly being pursued.
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Lithium carbenoids are species carrying a lithium and a peculiar nucleofugal heterosubstituent on the same carbon atom. Because of their intriguing ambiphilic behaviour (nucleophilic and electrophilic reactivity), they are generally recognized as useful reagents capable of modifying their reactivity by “umpolung”. The harmonic cooperation between calculations and the most modern NMR techniques has stimulated the development of several fruitful “surgical” stereoselective applications in the field of organic synthesis.
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Likewise to a carbenoid species which can exhibit a double-faced “identity” (nucleophilic/electrophilic behaviour), these two spiral galaxies (picture at left) (located some 450 million light-years away from Earth in the constellation of Hercules) currently linked by their swinging arms and that are merging into each other because of a remarkable collision in act, are more and more losing their original “identity” in favour of a new combined one.
Anatomy of Long-lasting Love Affairs with Lithium Carbenoids:
Past, and Present Status, and Future Prospects
Chemistry – A European Journal 2010, 16, 4152.
In our research group, the structural features of Li/oxygen carbenoids (such as oxiranyllithiums), their configurational stability and the sterochemistry of their coupling reactions with electrophiles are being actively investigated. As lithium carbenoids are often aggregated in solution, the structure-reactivity relationship is an important feature to be always taken into consideration for both the elucidation of the reaction mechanisms and an improved understanding of observed selectivities. The dichotomous reactivity exhibited by lithiated styrene oxide in THF, for example, synergically investigated by means of both density functional theory calculations and multinuclear magnetic resonance spectroscopy, has recently been related to the various aggregation states (monomer, stereoisomeric dimers and tetramers) favoured in solution according to the employed experimental conditions.
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Each fact or process of the science, and the way these are viewed, is in precarious balance between polar extremes. And the polarities of substances and their transformations resonate with forces deep in our psyche. Roald Hoffmann
On the Dichotomic Reactivity of Lithiated Styrene Oxide:
A Computational and Multinuclear Magnetic Resonance Investigation
Chemistry – A European Journal 2009, 15, 7958
Oxazolinyloxiranyllithiums are configurationally labile intermediates. They undergo a very fast racemization when generated from the corresponding optically active precursors in a way that is not as simple as it may be envisaged: an inverting tetrahedral configuration is, indeed, very likely to take place rather than an inverting planar configuration. An indirect dynamic interconversion between two lithiated h3-aza-allyl enantiomeric monomers, mediated by an oxazoline-bridged dimeric species, has been proposed as a possible pathway of racemization.
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In this picture, the “wheel” of racemization of an a-lithiated oxazolinyloxirane is compared to a spiral galaxy which is a sort of rotating disk made up of billions of stars. Likewise at the center of most galaxies is thought to be a giant black hole whose role in galaxy formation is still debated, the various aggregation states of such reactive intermediates are the key points of their amazing “dual reactivity” (carbanionic or carbenoid).
2-Lithio-3,3-dimethyl-2-oxazolinyloxirane: Carbanion or Azaenolate?
Structure, Configurational Stability, and Stereodynamics in Solution
Journal of Organic Chemistry 2008, 73, 9552
Which is the boundary between configurational stability/instability of lithiated fluorinated styrene oxides? It depends upon both the type of fluorinated group and its relative position on the phenyl ring. Barriers to inversion, activation parameters, and mechanisms of racemization have recently been discussed for configurationally unstable intermediates.
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The “Three Peaks of Lavaredo” (or “Drei Zinnen”) are one of the world-famous pinnacles belonging to the Sestro Dolomites. The depicted lithiated fluorinated styrene oxides are, among oxiranyllithiums, quite promising building blocks for constructing stereodefined fluorinated amino alcohols of pharmaceutical interest.
Lithiated Fluorinated Styrene Oxides:
Configurational Stability, Synthetic Applications, and Mechanistic Insight
Chemistry – A European Journal 2010, 16, 4152
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Configurational stability on demand! As shown in the picture, the presence of TMEDA dramatically enhances the configurational stability of differently substituted chiral a-lithiated aryloxiranes in hexane. The calculated barriers to inversion and activation parameters suggest a subtle interplay of different enantiomerization mechanisms involved according to the nature and the position of the aryl substituent.
Solvent and TMEDA Effects on the Configurational Stability of Chiral Lithiated Aryloxiranes
Chemistry – A European Journal 2011, DOI: 10.1002/chem.201100351
Other interests involve: mechanisms of racemization of chiral organolithiums; asymmetric synthesis and catalysis promoted by both chiral nonracemic heteroaggregates and N-heterocyclic carbene complexes; polifunctional organoboron compounds and their applications as oligotopic aryl nucleophiles for Suzuki-Miyaura-type cross-couplings and in the field of material sciences; organofluorine chemistry; application of lithium chemistry in medicine and in the field of material sciences.
He is currently collaborating with some national and international research groups including: University of Milano-Bicocca (A. Abbotto), Institute of Crystallography, Bari (IC-CNR) (C. Cuocci, G. Campi, A. Moliterni, R. Rizzi), Ludwig-Maximilians-Universität, München, Germany (Konstantin Karaghiosoff), Universidad Autònoma, Madrid, Spain (J. L. García Ruano), University of Göthenburg, Göteborg, Sweden (Sten O. Nilsson Lill), Université de Rouen, France (Jacques Maddaluno).
INVITED TALKS and LECTURES Ý
· Italian Chemical Society (since 1992)
· American Chemical Society (since 1998)
· International Society of Heterocyclic Chemistry (ISCH) (since 2003)
· One-Day Symposium on “Advances in Organolithium Chemistry”, Bari (I) 2010 (chair).
· 2nd Symposium on Heterocyclic Chemistry, Bari (I) 2006.
· Riunione Scientifica della Sezione Puglia: La Chimica per la Qualità della Vita, Bari (I) 2004.
· Riunione Scientifica della Sezione Puglia: I Giovani e la Ricerca Chimica in Puglia, Bari (I) 2002.
· 2nd Trans-Mediterranean Colloquium on Heterocyclic Chemistry (TRAMEC), Bari (I) 2002.
· 2nd Italian-Spanish Symposium on Organic Chemistry”, Lecce (I) 1998.
· XXIII Convegno Nazionale della Divisione di Chimica Organica, Monopoli (I) 1996.
RECENT SELECTED PUBLICATIONS Ý
Filippo Maria Perna, Antonio Salomone, Mariangela Dammacco, Saverio Florio, Vito Capriati
“Solvent and TMEDA Effects on the Configurational Stability of Chiral Lithiated Aryloxiranes”
Chem. Eur. J. 2011, DOI: 10.1002/chem.201100351.
Vito Capriati, Saverio Florio, Filippo Maria Perna, Antonio Salomone
“Lithiated Fluorinated Styrene Oxides: Configurational Stability, Synthetic Applications, and Mechanistic Insight”
Chem. Eur. J. 2010, 16, 9778-9788.
Vito Capriati, Saverio Florio, Filippo Maria Perna, Antonio Salomone, Alessandro Abbotto, Mohamed Amedjkouh, Sten O. Nilsson Lill
“On the Dicothomic Reactivity of Lithiated Styrene Oxide: A Computational and Multinuclear Magnetic Resonance Investigation”
Chem. Eur. J. 2009, 15, 7958–7979.
Leonardo Degennaro, Vito Capriati, Claudia Carlucci, Saverio Florio, Renzo Luisi, Irene Nuzzo, Corrado Cuocci
“Terminal Oxazolinyloxiranes: Synthesis, Reaction with Amines and Regioselective b-Lithiation” Tetrahedron, 2009, 65, 8745–8755.
Vito Capriati, Saverio Florio, Renzo Luisi, Filippo Maria Perna, Agnese Spina
“a-Lithiated Oxazolinyloxiranes: Carbanions or Azaenolates? Structure, Configurational Stability and Dynamics in Solution”
J. Org. Chem., 2008, 73, 9552-9564.
Antonio Salomone, Vito Capriati, Saverio Florio, Renzo Luisi
“Michael Addition of Ortho-Lithiated Aryloxiranes to a,b-Unsaturated Malonates: Synthesis of Tetrahydroindenofuranones”
Org. Lett. 2008, 10(10), 1947-1950.
Vito Capriati, Saverio Florio, Renzo Luisi, Andrea Mazzanti, Biagia Musio
“Regio- and Stereoselective Lithiation of 2,3-Diphenylaziridines: A Multinuclear NMR Investigation”
J. Org. Chem. 2008, 73, 3197-3204.
Vito Capriati, Leonardo Degennaro, Saverio Florio, Renzo Luisi
“Oxazoline-mediated Highly Stereoselective Synthesis of a,b-Substituted-b-aminoalkanamides, Potential Precursors of Unnatural b-2,2,3-Amino Acids”
Tetrahedron Lett. 2007, 48, 8651–8654.
Vito Capriati, Saverio Florio, Renzo Luisi, Filippo Maria Perna
“Synthesis of 2,3-Dihydro-10bH-oxazolo[2,3-a] isoquinolines from ortho-Lithiated Phenyloxazolinyloxiranes”
J. Org. Chem. 2007, 72(16), 6316–6319.
Vito Capriati, Leonardo Degennaro, Saverio Florio, Renzo Luisi, Pasqualina Punzi
“Stereoselective Synthesis of Novel 4,5-Epoxy-1,2-oxazin-6-ones and a,b-Epoxy-g-amino Acids from b-Lithiated Oxazolinyloxiranes and Nitrones”
Org. Lett. 2006, 8, 4803–4806; Corrigendum: Org. Lett. 2006, 8 (26), 6147.
Vito Capriati, Saverio Florio, Renzo Luisi, Antonio Salomone, Corrado Cuocci
“Stereoselective Synthesis of Novel b,g-Epoxyhydroxylamines and 4-Hydroxyalkyl-1,2-Oxazetidines”
Org. Lett. 2006, 8 (18), 3923–3926.
Vito Capriati, Saverio Florio, Renzo Luisi, Filippo Maria Perna, Antonio Salomone
“Synthesis of 1,3-Dihydrobenzo[c]furans from Ortho-Lithiated Aryloxiranes”
J. Org. Chem. 2006, 71 (10) 3984–3897.
Vito Capriati, Saverio Florio, Renzo Luisi, Filippo Maria Perna, Antonio Salomone, Francesco Gasparrini
“An Efficient Route to New Polysubstituted Tetrahydronaphthols via Addition of ortho-Lithiated Stilbene Oxides to a,b-Unsaturated Fischer Carbene Complexes”
Org. Lett. 2005, 7(22), 4895–4898.
Vito Capriati, Saverio Florio, Renzo Luisi, Filippo Maria Perna, José Barluenga
“Asymmetric Synthesis of Ciclopropanes from Lithiated Aryloxiranes and a,b-Unsaturated Fischer Carbene Complexes”
J. Org. Chem. 2005, 70, 5852–5858. Corrigendum: J. Org. Chem. 2005, 70, 8255–8255.
Renzo Luisi, Vito Capriati, Saverio Florio, Eliana Piccolo
“Synthesis of Enantiomerically Enriched Oxazolinyl[1,2]Oxazetidines”
J. Org. Chem. 2003, 68, 10187–10190.
Renzo Luisi, Vito Capriati, Saverio Florio, Teresa Vista
“A New Synthesis of Optically Active 5-Isoxazolidinones and b-Amino Acids”
J. Org. Chem. 2003, 68, 9861–9864.
Vito Capriati, Leonardo Degennaro, Raffaele Favia, Saverio Florio, Renzo Luisi
“Stereospecific b-Lithiation of Oxazolinyloxiranes: Synthesis of a,b-Epoxy-g-Butyrolactones”
Org. Lett. 2002, 4, 1551–1554.
Vito Capriati, Saverio Florio, Renzo Luisi, Maria Teresa Rocchetti
“Metalation of 2-Chloromethyl-2-oxazolines: Synthesis of 1,2,3-Tris(oxazolinyl)cyclopropanes and Derivatives”
J. Org. Chem. 2002, 67, 759–763.
Vito Capriati, Saverio Florio, Renzo Luisi, Antonio Salomone
“Oxiranyl Anion-Mediated Synthesis of Highly Enantiomerically Enriched Styrene Oxide Derivatives”
Org. Lett. 2002, 4, 2445–2448.
Vito Capriati, Saverio Florio
“Anatomy of Long-lasting Love Affairs with Lithium Carbenoids”
Chem. Eur. J. 2010, 16, 4152-4162.
Vito Capriati, Saverio Florio, Renzo Luisi
“a-Substituted a-Lithiated Oxiranes: Useful Reactive Intermediates”
Chem. Rev. 2008, 108, 1918-1942.
Saverio Florio, Vito Capriati, Renzo Luisi
“Lithiated a-chloroalkylheterocycles: Utility in Synthetic Organic Chemistry”
Curr. Org. Chem. 2004, 8 (16), 1529–1545.
Vito Capriati, Saverio Florio, Renzo Luisi
“a-Lithiated Aryloxiranes: Useful Reactive Intermediates”
Synlett 2005, 9, 1359-1369.
Vito Capriati, Saverio Florio, Antonio Salomone (2010) “Oxiranyllithiums as Chiral Synthons for Asymmetric Synthesis” Charter 4 in Stereochemical Aspects of Organolithium Compounds, Verlag Helvetica Chimica Acta, Zurich 26: Topics in Sterochemistry R. E. Gawley, J. S. Siegel.
T. W. Graham Solomon, Craig B. Fryle (2008) Chimica Organica, Edited by Vito Capriati, Elisabetta Florio, Saverio Florio, Carmela Galli, Renzo Luisi, Giancarlo Ortaggi; Italian translation of “Organic Chemistry”, 9th Edition, Zanichelli 3rd Italian Edition.
Saverio Florio, Vito Capriati, Renzo Luisi (2008) Chapter 2.14: Four-Membered Rings with One Oxygen and One Nitrogen Atom In: Comprehensive Heterocyclic Chemistry III Edited by: A. R. Katritzky. 689-711 Pergamon: Oxford.
Paula Yurkanis Bruice (2007) Elementi di Chimica Organica, Edited by Vito Capriati et al.; Italian translation of “Essential Organic Chemistry”, 1st Edition, EdiSES 1st Italian Edition.
Saverio Florio, Vito Capriati (1995) Allylmagnesium Bromide (+Chloride) In: Encyclopedia of Reagents for Organic Synthesis (E.R.O.S.) Edited by: Leo A. Paquette. 111–114 John Wiley & Sons.
Saverio Florio, Vito Capriati (1995) Crotylmagnesium Bromide (+Chloride) In: Encyclopedia of Reagents for Organic Synthesis (E.R.O.S.) Edited by: Leo A. Paquette. 1930–1932 John Wiley & Sons.
Current PhD Students and Post-Docs Ý