1
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Demangeat C, Saied T, Ramozzi R, Ingrosso F, Ruiz-Lopez M, Panossian A, Leroux FR, Fort Y, Comoy C. Transition-Metal-Free Approach for the Direct Arylation of Thiophene: Experimental and Theoretical Investigations towards the (Het)-Aryne Route. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801173] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Catherine Demangeat
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Tarak Saied
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Romain Ramozzi
- Université de Lorraine; CNRS, LPCT UMR 7019; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Francesca Ingrosso
- Université de Lorraine; CNRS, LPCT UMR 7019; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Manuel Ruiz-Lopez
- Université de Lorraine; CNRS, LPCT UMR 7019; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Armen Panossian
- Université de Strasbourg; Université de Haute-Alsace, CNRS, LIMA, UMR 7042, ECPM; 67000 Strasbourg France
| | - Frédéric R. Leroux
- Université de Strasbourg; Université de Haute-Alsace, CNRS, LIMA, UMR 7042, ECPM; 67000 Strasbourg France
| | - Yves Fort
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
| | - Corinne Comoy
- Université de Lorraine; CNRS, L2CM UMR7053; B.P. 70239 54506 Vandoeuvre-lès-Nancy France
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2
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Barozzino-Consiglio G, Hamdoun G, Fressigné C, Harrison-Marchand A, Maddaluno J, Oulyadi H. A Combined 1
H/6
Li NMR DOSY Strategy Finally Uncovers the Structure of Isopropyllithium in THF. Chemistry 2017; 23:12475-12479. [DOI: 10.1002/chem.201702990] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Indexed: 11/09/2022]
Affiliation(s)
| | - Ghanem Hamdoun
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Catherine Fressigné
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Anne Harrison-Marchand
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Jacques Maddaluno
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Hassan Oulyadi
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
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3
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Houghton MJ, Collum DB. Lithium Enolates Derived from Weinreb Amides: Insights into Five-Membered Chelate Rings. J Org Chem 2016; 81:11057-11064. [PMID: 27749060 PMCID: PMC5261255 DOI: 10.1021/acs.joc.6b02067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enolization of O-methyl hydroxamic acids (Weinreb amides) in tetrahydrofuran solution with lithium diisopropylamide affords predominantly tetrameric enolates. Aryl substituents on the enolates promote deaggregation. The aggregation states are assigned by using the method of continuous variation in conjunction with 6Li NMR spectroscopy. Decoalescence of the tetramer resonance below -100 °C shows considerable spectral complexity attributed to isomerism of the methoxy-based chelates. Density functional theory calculations were used to examine the consequences of the bite angle of five-membered chelates in cubic tetramers and resulting solvation numbers that were higher than anticipated.
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Affiliation(s)
- Michael J. Houghton
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
| | - David B. Collum
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
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4
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Houghton MJ, Huck CJ, Wright SW, Collum DB. Lithium Enolates Derived from Pyroglutaminol: Mechanism and Stereoselectivity of an Azaaldol Addition. J Am Chem Soc 2016; 138:10276-83. [PMID: 27500546 PMCID: PMC5240537 DOI: 10.1021/jacs.6b05481] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A lithium enolate derived from an acetonide-protected pyroglutaminol undergoes a highly selective azaaldol addition with (E)-N-phenyl-1-[2-(trifluoromethyl)phenyl]methanimine. The selectivity is sensitive to tetrahydrofuran (THF) concentration, temperature, and the presence of excess lithium diisopropylamide base. Rate studies show that the observable tetrasolvated dimeric enolate undergoes reversible deaggregation, with the reaction proceeding via a disolvated-monomer-based transition structure. Limited stereochemical erosion stems from the intervention of a trisolvated-monomer-based pathway, which is suppressed at low THF concentrations and elevated temperature. Endofacial selectivity observed with excess lithium diisopropylamide (LDA) is traced to an intermediate dianion formed by subsequent lithiation of the monomeric azaaldol adduct, which is characterized as both a dilithio form and a trilithio dianion-LDA mixed aggregate.
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Affiliation(s)
- Michael J. Houghton
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University Ithaca, New York 14853–1301
| | - Christopher J. Huck
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University Ithaca, New York 14853–1301
| | - Stephen W. Wright
- Worldwide Medicinal Chemistry, Pfizer Global Research and Development, 445 Eastern Point Road, Groton, CT 06340
| | - David B. Collum
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University Ithaca, New York 14853–1301
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5
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Houghton MJ, Biok NA, Huck CJ, Algera RF, Keresztes I, Wright SW, Collum DB. Lithium Enolates Derived from Pyroglutaminol: Aggregation, Solvation, and Atropisomerism. J Org Chem 2016; 81:4149-57. [PMID: 27035057 PMCID: PMC5245164 DOI: 10.1021/acs.joc.6b00459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Lithium enolates derived from protected pyroglutaminols were characterized by using (6)Li, (13)C, and (19)F NMR spectroscopies in conjunction with the method of continuous variations. Mixtures of tetrasolvated dimers and tetrasolvated tetramers in different proportions depend on the steric demands of the hemiaminal protecting group, tetrahydrofuran concentration, and the presence or absence of an α-fluoro moiety. The high steric demands of the substituted bicyclo[3.3.0] ring system promote dimers to an unusual extent and allow solvents and atropisomers in cubic tetramers to be observed in the slow-exchange limit. Pyridine used as a (6)Li chemical shift reagent proved useful in assigning solvation numbers.
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Affiliation(s)
- Michael J. Houghton
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853–1301
| | - Naomi A. Biok
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853–1301
| | - Christopher J. Huck
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853–1301
| | - Russell F. Algera
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853–1301
| | - Ivan Keresztes
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853–1301
| | - Stephen W. Wright
- Worldwide Medicinal Chemistry, Pfizer Global Research and Development, 445 Eastern Point Road, Groton, CT 06340
| | - David B. Collum
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853–1301
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6
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Cézard C, Bouvier B, Dassonville-Klimpt A, Sonnet P. The origin of the stereoselective alkylation of 3-substituted-2-oxopiperazines: A computational investigation. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2015.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Jin KJ, Collum DB. Solid-State and Solution Structures of Glycinimine-Derived Lithium Enolates. J Am Chem Soc 2015; 137:14446-55. [PMID: 26554898 PMCID: PMC4762874 DOI: 10.1021/jacs.5b09524] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A combination of crystallographic, spectroscopic, and computational studies was applied to study the structures of lithium enolates derived from glycinimines of benzophenone and (+)-camphor. The solvents examined included toluene and toluene containing various concentrations of tetrahydrofuran, N,N,N',N'-tetramethylethylenediamine (TMEDA), (R,R)-N,N,N',N'-tetramethylcyclohexanediamine [(R,R)-TMCDA], and (S,S)-N,N,N',N'-tetramethylcyclohexanediamine [(S,S)-TMCDA]. Crystal structures show chelated monomers, symmetric disolvated dimers, S4-symmetric tetramers, and both S6- and D3d-symmetric hexamers. (6)Li NMR spectroscopic studies in conjunction with the method of continuous variations show how these species distribute in solution. Density functional theory computations offer insights into experimentally elusive details.
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Affiliation(s)
- Kyoung Joo Jin
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
| | - David B. Collum
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
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8
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Tallmadge EH, Collum DB. Evans Enolates: Solution Structures of Lithiated Oxazolidinone-Derived Enolates. J Am Chem Soc 2015; 137:13087-95. [PMID: 26437278 PMCID: PMC4765922 DOI: 10.1021/jacs.5b08207] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The results of a combination of (6)Li and (13)C NMR spectroscopic and computational studies of oxazolidinone-based lithium enolates-Evans enolates-in tetrahydrofuran (THF) solution revealed a mixture of dimers, tetramers, and oligomers (possibly ladders). The distribution depended on the structure of the oxazolidinone auxiliary, substituent on the enolate, and THF concentration (in THF/toluene mixtures). The unsolvated tetrameric form contained a D(2d)-symmetric core structure, whereas the dimers were determined experimentally and computationally to be trisolvates with several isomeric forms.
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Affiliation(s)
- Evan H Tallmadge
- Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853-1301, United States
| | - David B Collum
- Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853-1301, United States
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9
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Marchois J, Fressigné C, Lecachey B, Maddaluno J. Base or nucleophile? DFT finally elucidates the origin of the selectivity between the competitive reactions triggered by MeLi or LDA on propanal. Chem Commun (Camb) 2015; 51:9801-4. [PMID: 25925129 DOI: 10.1039/c5cc01549a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The competition between basicity and nucleophilicity of two standard organolithium reagents was studied using DFT. Comparing the reactivity of solvated (MeLi)2 and (LDA)2 toward propanal finally explains why methyllithium adds onto the carbonyl while LDA deprotonates the α-position, in accord with experiment and Ireland's deprotonation TS.
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Affiliation(s)
- J Marchois
- Laboratoire COBRA, CNRS UMR 6014 & FR 3038, Université de Rouen and INSA de Rouen, 76821-Mont St Aignan Cedex, France.
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10
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Hamdoun G, Sebban M, Tognetti V, Harrison-Marchand A, Joubert L, Maddaluno J, Oulyadi H. Alkyllithium Mixed Aggregates: Dynamic Behavior and Comprehensive Analysis of NMR 2J7Li–7Li Spin–Spin Coupling. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ghanem Hamdoun
- Normandie Université, COBRA, UMR6014 & FR3038 CNRS, Université de Rouen, INSA de Rouen, 76821 Mont-Saint-Aignan Cedex, France
| | - Muriel Sebban
- Normandie Université, COBRA, UMR6014 & FR3038 CNRS, Université de Rouen, INSA de Rouen, 76821 Mont-Saint-Aignan Cedex, France
| | - Vincent Tognetti
- Normandie Université, COBRA, UMR6014 & FR3038 CNRS, Université de Rouen, INSA de Rouen, 76821 Mont-Saint-Aignan Cedex, France
| | - Anne Harrison-Marchand
- Normandie Université, COBRA, UMR6014 & FR3038 CNRS, Université de Rouen, INSA de Rouen, 76821 Mont-Saint-Aignan Cedex, France
| | - Laurent Joubert
- Normandie Université, COBRA, UMR6014 & FR3038 CNRS, Université de Rouen, INSA de Rouen, 76821 Mont-Saint-Aignan Cedex, France
| | - Jacques Maddaluno
- Normandie Université, COBRA, UMR6014 & FR3038 CNRS, Université de Rouen, INSA de Rouen, 76821 Mont-Saint-Aignan Cedex, France
| | - Hassan Oulyadi
- Normandie Université, COBRA, UMR6014 & FR3038 CNRS, Université de Rouen, INSA de Rouen, 76821 Mont-Saint-Aignan Cedex, France
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11
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Essafi S, Tomasi S, Aggarwal VK, Harvey JN. Homologation of boronic esters with organolithium compounds: a computational assessment of mechanism. J Org Chem 2014; 79:12148-58. [PMID: 25318004 DOI: 10.1021/jo502020e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Ab initio calculations are reported for the reaction of methyl boronic ester with organolithium reagents with α-leaving groups. The best calculations rely on density functional theory prediction of structures and coupled-cluster theory calculation of accurate potential energies. The results provide strong confirmation of the feasibility of a two-step mechanism with rapid initial formation of a boron-ate complex followed by slower migration of methyl from boron to carbon with loss of the leaving group. The calculated free energy of activation is consistent with observed kinetic behavior, and the calculations provide a framework for exploring substituent and other effects on reactivity. Obtaining reasonable agreement with experiment in this way is not trivial and requires careful treatment of level of theory (density functional theory calculations tend to yield inaccurate results), of conformational complexity, especially for the ate complexes, and of the nature of the microscopic model of reactants and solvent. The methodological challenges and possible pitfalls, many of which are relevant more broadly to computational modeling of organic reaction mechanisms, are discussed in detail.
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Affiliation(s)
- Stéphanie Essafi
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
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12
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Bruneau A, Liou L, Collum DB. Solution structures of lithium amino alkoxides used in highly enantioselective 1,2-additions. J Am Chem Soc 2014; 136:2885-91. [PMID: 24471766 PMCID: PMC3985715 DOI: 10.1021/ja412210d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Indexed: 01/25/2023]
Abstract
Lithium ephedrates and norcarane-derived lithium amino alkoxides used to effect highly enantioselective 1,2-additions on large scales have been characterized in toluene and tetrahydrofuran. The method of continuous variations in conjunction with (6)Li NMR spectroscopy reveals that the lithium amino alkoxides are tetrameric. In each case, low-temperature (6)Li NMR spectra show stereoisomerically pure homoaggregates displaying resonances consistent with an S4-symmetric cubic core rather than the alternative D2d core. These assignments are supported by density functional theory computations and conform to X-ray crystal structures. Slow aggregate exchanges are discussed in the context of amino alkoxides as chiral auxiliaries.
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Affiliation(s)
- Angela
M. Bruneau
- Department of Chemistry and
Chemical Biology Baker Laboratory, Cornell
University, Ithaca, New York 14853-1301, United States
| | - Lara Liou
- Department of Chemistry and
Chemical Biology Baker Laboratory, Cornell
University, Ithaca, New York 14853-1301, United States
| | - David B. Collum
- Department of Chemistry and
Chemical Biology Baker Laboratory, Cornell
University, Ithaca, New York 14853-1301, United States
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13
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Su C, Hopson R, Williard PG. Isotopically Enriched 13C Diffusion-Ordered NMR Spectroscopy: Analysis of Methyllithium. J Org Chem 2013; 78:11733-46. [DOI: 10.1021/jo401740g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Chicheung Su
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Russell Hopson
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Paul G. Williard
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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14
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Ma Y, Stivala CE, Wright AM, Hayton T, Liang J, Keresztes I, Lobkovsky E, Collum DB, Zakarian A. Enediolate-dilithium amide mixed aggregates in the enantioselective alkylation of arylacetic acids: structural studies and a stereochemical model. J Am Chem Soc 2013; 135:16853-64. [PMID: 23654300 PMCID: PMC3818356 DOI: 10.1021/ja403076u] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A combination of X-ray crystallography, (6)Li, (15)N, and (13)C NMR spectroscopies, and density functional theory computations affords insight into the structures and reactivities of intervening aggregates underlying highly selective asymmetric alkylations of carboxylic acid dianions (enediolates) mediated by the dilithium salt of a C2-symmetric chiral tetraamine. Crystallography shows a trilithiated n-butyllithium-dilithiated amide that has dimerized to a hexalithiated form. Spectroscopic studies implicate the non-dimerized trilithiated mixed aggregate. Reaction of the dilithiated amide with the dilithium enediolate derived from phenylacetic acid affords a tetralithio aggregate comprised of the two dianions in solution and the dimerized octalithio form in the solid state. Computational studies shed light on the details of the solution structures and afford a highly predictive stereochemical model.
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Affiliation(s)
- Yun Ma
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University, Ithaca, New York 14853–1301, Telephone: (607)-255-4879; Fax: (850)-644-8281
| | - Craig E. Stivala
- Contribution from the Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106; Telephone: (805)-893-3717; Fax: (805)-893-4120
| | - Ashley M. Wright
- Contribution from the Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106; Telephone: (805)-893-3717; Fax: (805)-893-4120
| | - Trevor Hayton
- Contribution from the Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106; Telephone: (805)-893-3717; Fax: (805)-893-4120
| | - Jun Liang
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University, Ithaca, New York 14853–1301, Telephone: (607)-255-4879; Fax: (850)-644-8281
| | - Ivan Keresztes
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University, Ithaca, New York 14853–1301, Telephone: (607)-255-4879; Fax: (850)-644-8281
| | - Emil Lobkovsky
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University, Ithaca, New York 14853–1301, Telephone: (607)-255-4879; Fax: (850)-644-8281
| | - David B. Collum
- Department of Chemistry and Chemical Biology Baker Laboratory, Cornell University, Ithaca, New York 14853–1301, Telephone: (607)-255-4879; Fax: (850)-644-8281
| | - Armen Zakarian
- Contribution from the Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106; Telephone: (805)-893-3717; Fax: (805)-893-4120
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15
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Theoretical study of the mechanism of formation of 4-aminoisoxazoles. 2*. An unusual rearrangement of oximinonitriles. Chem Heterocycl Compd (N Y) 2013. [DOI: 10.1007/s10593-013-1342-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Fressigné C, Lhermet R, Girard AL, Durandetti M, Maddaluno J. Influence of the Acetylenic Substituent on the Intramolecular Carbolithiation of Alkynes: A DFT Theoretical Study. J Org Chem 2013; 78:9659-69. [DOI: 10.1021/jo4012893] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Catherine Fressigné
- Laboratoire COBRA, CNRS UMR 6014 & FR 3038, Université de Rouen and INSA de Rouen, 76821 Mont St Aignan Cedex, France
| | - Rudy Lhermet
- Laboratoire COBRA, CNRS UMR 6014 & FR 3038, Université de Rouen and INSA de Rouen, 76821 Mont St Aignan Cedex, France
| | - Anne-Lise Girard
- Laboratoire COBRA, CNRS UMR 6014 & FR 3038, Université de Rouen and INSA de Rouen, 76821 Mont St Aignan Cedex, France
| | - Muriel Durandetti
- Laboratoire COBRA, CNRS UMR 6014 & FR 3038, Université de Rouen and INSA de Rouen, 76821 Mont St Aignan Cedex, France
| | - Jacques Maddaluno
- Laboratoire COBRA, CNRS UMR 6014 & FR 3038, Université de Rouen and INSA de Rouen, 76821 Mont St Aignan Cedex, France
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17
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Harrison-Marchand A, Mongin F. Mixed AggregAte (MAA): A Single Concept for All Dipolar Organometallic Aggregates. 1. Structural Data. Chem Rev 2013; 113:7470-562. [DOI: 10.1021/cr300295w] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anne Harrison-Marchand
- Laboratoire COBRA de l′Université de Rouen, INSA de Rouen, CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Florence Mongin
- Équipe Chimie et Photonique Moléculaires, Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Bâtiment 10A, case 1003, Avenue du Général Leclerc, 35042 Rennes Cédex, France
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18
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Mongin F, Harrison-Marchand A. Mixed AggregAte (MAA): A Single Concept for All Dipolar Organometallic Aggregates. 2. Syntheses and Reactivities of Homo/HeteroMAAs. Chem Rev 2013; 113:7563-727. [DOI: 10.1021/cr3002966] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Florence Mongin
- Equipe Chimie et Photonique Moléculaires, Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Bât. 10A, Case 1003, Campus de Beaulieu, Avenue du Général Leclerc, 35042 Rennes Cédex, France
| | - Anne Harrison-Marchand
- Laboratoire COBRA de l′Université de Rouen, INSA de Rouen, CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
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19
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Oulyadi H, Fressigné C, Yuan Y, Maddaluno J, Harrison-Marchand A. Structure of the Mixed Aggregates between a Chiral Lithium Amide and Phenyllithium or Vinyllithium. Organometallics 2012. [DOI: 10.1021/om300352p] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hassan Oulyadi
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Catherine Fressigné
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Yi Yuan
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Jacques Maddaluno
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Anne Harrison-Marchand
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
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20
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Popescu AR, Musteti AD, Ferrer-Ugalde A, Viñas C, Núñez R, Teixidor F. Influential Role of Ethereal Solvent on Organolithium Compounds: The Case of Carboranyllithium. Chemistry 2012; 18:3174-84. [DOI: 10.1002/chem.201102626] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Indexed: 01/27/2023]
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21
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Lecachey B, Fressigné C, Oulyadi H, Harrison-Marchand A, Maddaluno J. First substoichiometric version of the catalytic enantioselective addition of an alkyllithium to an aldehyde. Chem Commun (Camb) 2011; 47:9915-7. [PMID: 21811732 DOI: 10.1039/c1cc13513a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A substoichiometric enantioselective version of the extremely fast nucleophilic addition of Alk-Li to RCHO is made possible thanks to a thorough analysis of the aggregation phenomena involved in the reaction: calculated quantities of LiCl must be added to the medium at the right time to keep the catalytic cycle running.
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Affiliation(s)
- Baptiste Lecachey
- CNRS UMR 6014 & FR 3038, Université de Rouen and INSA de Rouen, Mont St Aignan, France
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22
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Streitwieser A, Reyes JR, Singhapricha T, Vu S, Shah K. Ab initio modeling of organolithium equilibria. J Org Chem 2010; 75:3821-30. [PMID: 20465266 DOI: 10.1021/jo100864y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Experimental ion pair pK's of monomeric contact ion pair lithium salts in THF from our previous studies give good correlations with ab initio calculations at the Hartree-Fock 6-31+g(d) level. PCM methods were found to be inadequate in nonpolar organic solvents, and dielectric solvation was not used in the correlations. Specific coordination of two or three ether solvent molecules with lithium was found to be satisfactory. These correlations include carboxamides, amines, dithianes, sulfones, and sulfoxides, as well as some ketones, beta-diketones, and the lithium salts of dianions.
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Affiliation(s)
- Andrew Streitwieser
- Department of Chemistry, University of California-Berkeley, Berkeley, California 94720-1460, USA.
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23
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Retegan M, Martins-Costa M, Ruiz-López MF. Free energy calculations using dual-level Born–Oppenheimer molecular dynamics. J Chem Phys 2010; 133:064103. [DOI: 10.1063/1.3466767] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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24
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Khartabil HK, Gros PC, Fort Y, Ruiz-López MF. Metalation of Pyridines with nBuLi−Li−Aminoalkoxide Mixed Aggregates: The Origin of Chemoselectivity. J Am Chem Soc 2010; 132:2410-6. [DOI: 10.1021/ja910350q] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hassan K. Khartabil
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy, France
| | - Philippe C. Gros
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy, France
| | - Yves Fort
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy, France
| | - Manuel F. Ruiz-López
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy, France
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25
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Deora N, Carlier PR. Computational Studies of Ion-Pair Separation of Benzylic Organolithium Compounds in THF: Importance of Explicit and Implicit Solvation. J Org Chem 2010; 75:1061-9. [DOI: 10.1021/jo9016452] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Nipa Deora
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24060
| | - Paul R. Carlier
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24060
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26
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Mu WH, Chasse GA, Fang DC. A Synergy between Experiment and Theory for the Formation of Pyridine and Pyrrole Derivatives from Selected Butadienes and Organolithium Reagents: Mechanism, Solvent, and Substituent Effect. Organometallics 2009. [DOI: 10.1021/om900242g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei-Hua Mu
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, Yunnan, P. R. of China
| | - Gregory A. Chasse
- School of Chemistry, University of Wales, Bangor, Gwynedd, LL57 2UW, U.K
- Global Institute Of Computational Molecular and Materials Science (GIOCOMMS), Toronto/Budapest/Beijing
| | - De-Cai Fang
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. of China
- Global Institute Of Computational Molecular and Materials Science (GIOCOMMS), Toronto/Budapest/Beijing
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27
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De Vries TS, Goswami A, Liou LR, Gruver JM, Jayne E, Collum DB. Lithium phenolates solvated by tetrahydrofuran and 1,2-dimethoxyethane: structure determination using the method of continuous variation. J Am Chem Soc 2009; 131:13142-54. [PMID: 19702308 PMCID: PMC2752606 DOI: 10.1021/ja9047784] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The method of continuous variation in conjunction with (6)Li NMR spectroscopy was used to characterize lithium phenolates solvated by tetrahydrofuran and 1,2-dimethoxyethane. The strategy relies on the formation of ensembles of homo- and heteroaggregated phenolates. The symmetries and concentration dependencies of the heteroaggregates attest to the aggregation numbers of the homoaggregates. The structurally diverse phenols afford substrate- and solvent-dependent combinations of lithium phenolate monomers, dimers, trimers, tetramers, and pentamers. We discuss the refinement of protocols for characterizing O-lithiated species. Computational studies examine further the substituent and solvent dependencies of aggregation.
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Affiliation(s)
- Timothy S De Vries
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA
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28
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Gros PC, Fort Y. Combinations of Alkyllithiums and Lithium Aminoalkoxides for Generation of Functional Pyridine Organometallics and Derivatives. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900324] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Philippe C. Gros
- Groupe SOR, SRSMC, CNRS, Nancy Université, Faculté des Sciences, Boulevard des Aiguillettes, 54506 Vandoeuvre‐Lès‐Nancy, France, Fax: +33‐3‐83684979
| | - Yves Fort
- Groupe SOR, SRSMC, CNRS, Nancy Université, Faculté des Sciences, Boulevard des Aiguillettes, 54506 Vandoeuvre‐Lès‐Nancy, France, Fax: +33‐3‐83684979
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29
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Capriati V, Florio S, Perna F, Salomone A, Abbotto A, Amedjkouh M, Nilsson Lill S. On the Dichotomic Reactivity of Lithiated Styrene Oxide: A Computational and Multinuclear Magnetic Resonance Investigation. Chemistry 2009; 15:7958-7979. [DOI: 10.1002/chem.200900834] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Coldham I, Leonori D, Beng TK, Gawley RE. The barrier to enantiomerization and dynamic resolution of N-Boc-2-lithiopiperidine and the effect of TMEDA. Chem Commun (Camb) 2009:5239-41. [PMID: 19707632 DOI: 10.1039/b911024k] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetics of enantiomerization and dynamic thermodynamic resolution (DTR) of N-Boc-2-lithiopiperidine have been measured, revealing significant differences in enthalpy and entropy for these processes and a role for the achiral ligand TMEDA; the racemization and the DTR are catalytic and first order in [TMEDA], and this has implications for asymmetric synthesis with chiral organolithiums.
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Affiliation(s)
- Iain Coldham
- Department of Chemistry, University of Sheffield, Sheffield, UKS3 7HF.
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31
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Khartabil HK, Martins-Costa MTC, Gros PC, Fort Y, Ruiz-López MF. Structure of Mixed Alkyllithium/Lithium Alkoxide Aggregates in Ethereal Solvents. Insights from Combined QM/MM Molecular Dynamics Simulations. J Phys Chem B 2009; 113:6459-67. [DOI: 10.1021/jp809211y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hassan K. Khartabil
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | - Marilia T. C. Martins-Costa
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | - Philippe C. Gros
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | - Yves Fort
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | - Manuel F. Ruiz-López
- Equipe Chimie et Biochimie Théoriques and Equipe Synthèse Organométallique et Réactivité, SRSMC, Nancy-University, CNRS, BP 239, 54506 Vandoeuvre-lès-Nancy, France
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