1
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Aman M, Dostál L, Růžička A, Růžičková Z, Jambor R. B-substituted group 1 phosphides: synthesis and reactivity. Dalton Trans 2023; 52:16870-16885. [PMID: 37916487 DOI: 10.1039/d3dt02568c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
1-Boryl-8-phosphinonaphthalenes 1-BCy2-8-PCl2-C10H6 (1) and 1-BCy2-8-PPhCl-C10H6 (2) were prepared and used as starting materials for the synthesis of B-substituted phosphides. The reduction of 1 and 2 by Mg provided neutral compounds [1-BCy-8-PCy-C10H6]2 (3) and [1-BCy2-8-PPh-C10H6]2 (4). Compound 3 represents the dimer of phosphinoborane 1-BCy-8-PCy-C10H6 while complex 4 is a rare example of a discrete B ← P coordinated diphosphine. The reduction of 2 by Na or K in THF yielded B-substituted group 1 phosphides [Na(THF)3]+[1-BCy2-8-PPh-C10H6]- (5) and {[K(THF)2]+[1-BCy2-8-PPh-C10H6]-}∞ (6), which structurally resembled bulky group 1 phosphides. Complex 5 showed easy activation of elemental chalcogens E (E = O, S, Se) to give B-substituted chalcogenophosphinites {[Na(THF)2]+[1-BCy2-8-P(E)Ph-C10H6]}2 (E = O (7), S (8), Se (9)) as the products of chalcogen insertion into the P-Na bond. Importantly no oxidation to dichalcogenophosphinates was observed. Compound 5 is tolerant of the CO polar bonds in organic substrates and the reactions of 5 with 2,3-butanedione or an acyl chloride provided {[Na(THF)2]+[1-BCy2-8-P{CHC(O)C(Me)O}Ph-C10H6]-}2 (10) and [1-BCy2-8-P{C(O)tBu}Ph-C10H6] (11). Finally, B-coordinated phosphatetrylenes [1-BCy2-8-P(SnL)Ph-C10H6] (12) and [1-BCy2-8-P(PbL)Ph-C10H6] (13) (L is {2,6-(Me2NCH2)C6H3}-) were also prepared by substitution reactions of 5.
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Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Zdenka Růžičková
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
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2
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Kumar P, Sharma U, Ananthnag GS. The Story of Acyl Phosphines: Synthesis, Reactivity, and Catalytic Applications. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pawan Kumar
- Department of Chemistry, Rajdhani College University of Delhi New Delhi India
| | - Urvashi Sharma
- Department of Chemistry, Rajdhani College University of Delhi New Delhi India
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3
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Volk N, Malik P, Alcaraz AG, Espinosa Ferao A, Streubel R. Chemistry of oxaphosphirane complexes. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Vosáhlo P, Schulz J, Císařová I, Štěpnička P. Cyclopalladation of a ferrocene acylphosphine and the reactivity of the C-H activated products. Dalton Trans 2021; 50:6232-6244. [PMID: 33871524 DOI: 10.1039/d1dt00668a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acylphosphines are an attractive subclass of phosphine ligands with specific reactivity and ligating properties. This study describes the synthesis of a ferrocene-based acylphosphine, FcC(O)PPh2 (1, Fc = ferrocenyl), the corresponding phosphine chalcogenides FcC(O)P(E)Ph2 (E = O, S and Se), and palladium(ii) complexes resulting from the orthometallation of 1, viz. [Pd(μ-X)(1- H)]2 (2-X, where X = Cl, Br and I), which in turn serve as a convenient entry point to a range of monopalladium complexes. Thus, the cleavage of 2-X with phosphines, 4-(dimethylamino)pyridine and in situ-generated 1,3-dimesitylimidazolin-2-ylidene (L) provided complexes [PdX(L)(1- H)] (3-5), which are typically obtained as single isomers by crystallisation but undergo spontaneous isomerisation in solution leading to equilibrium mixtures of cis and trans isomers. Upon treatment with sodium acetylacetonate (Na(acac)), 2-Cl was transformed into [Pd(acac)(1- H)] (6), which reacted with (diphenylphosphino)acetic acid under proton transfer to give [Pd(Ph2PCH2CO2-κ2O,P)(1- H)] (7), while the reaction with allylating agents produced the π-allyl complex [Pd(η3-C3H5)(1- H)] (9). Compound [PdCl(PMe3)(1- H)] was further used to prepare a series of diorganopalladium complexes [Pd(R)(PMe3)(1- H)] (8; R = Me, 4-C6H4Me, 4-C6H4CF3, CH[double bond, length as m-dash]CHC6H4Me-4 and C[triple bond, length as m-dash]CC6H4Me-4). All compounds were structurally characterised using spectroscopic methods and, in most cases, also by X-ray diffraction analysis. The structural data indicated the rigidity of the Pd(1- H)+ fragment and revealed variations in the Pd-donor distances dictated by an interplay between the trans influence and steric demands of the ligands surrounding Pd(ii). Moreover, some compounds were studied by DFT to rationalise their isomerisation equilibria and electrochemical properties, which were examined by cyclic voltammetry.
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Affiliation(s)
- Petr Vosáhlo
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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5
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Espinosa Ferao A, Rey Planells A, Streubel R. Between Oxirane and Phosphirane: The Spring‐loaded Oxaphosphirane Ring. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000881] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Arturo Espinosa Ferao
- Department of Organic Chemistry Faculty of Chemistry University of Murcia Campus de Espinardo 30100 Murcia
| | - Alicia Rey Planells
- Department of Organic Chemistry Faculty of Chemistry University of Murcia Campus de Espinardo 30100 Murcia
| | - Rainer Streubel
- Institute of Inorganic Chemistry Rheinische Friedrich-Wilhelms-Universität Bonn Gerhard-Domagk-Straße 1
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6
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Yang XC, Xu M, Wang JB, Liu MM, Mathey F, Hua YZ, Wang MC. Enantioselective synthesis of indanone spiro-isochromanone derivatives via a dinuclear zinc-catalyzed Michael/transesterification tandem reaction. Org Biomol Chem 2020; 18:3917-3926. [PMID: 32400845 DOI: 10.1039/d0ob00541j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective Michael/transesterification tandem reaction of α-hydroxy indanones with ortho-ester chalcones was realized using dinuclear zinc catalysts. A series of enantiomerically pure spiro[indanone-2,3'-isochromane-1-one] derivatives were obtained in good yields with excellent stereoselectivities (up to >20 : 1 dr, up to >99% ee). This protocol could be conducted on a gram scale without affecting its stereoselectivities. In addition, the absolute stereochemistry of the products was determined by X-ray crystallographic analysis of 3ac, and a positive nonlinear effect was observed. Finally, a possible catalytic cycle was proposed to explain the origin of the enantioselectivity.
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Affiliation(s)
- Xiao-Chao Yang
- College of Chemistry and Institute of Green catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan Province 450000, P. R. China.
| | - Meng Xu
- College of Chemistry and Institute of Green catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan Province 450000, P. R. China.
| | - Jin-Bao Wang
- College of Chemistry and Institute of Green catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan Province 450000, P. R. China.
| | - Meng-Meng Liu
- College of Chemistry and Institute of Green catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan Province 450000, P. R. China.
| | - François Mathey
- College of Chemistry and Institute of Green catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan Province 450000, P. R. China.
| | - Yuan-Zhao Hua
- College of Chemistry and Institute of Green catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan Province 450000, P. R. China.
| | - Min-Can Wang
- College of Chemistry and Institute of Green catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou, Henan Province 450000, P. R. China.
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7
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Brand A, Wegener P, Hepp A, Uhl W. A Geometrically Constrained Tricyclic Phosphine: Coordination, Ring Expansion by Insertion of CO into a P–C Bond, and Lewis Acid Initiated Formation of an Oligocyclic Molecule with a P 2C 22 backbone. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00105] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander Brand
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Philipp Wegener
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
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8
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Syed Abuthahir S, NizamMohideen M, Mayakrishnan S, Uma Maheswari N, Viswanathan V. Crystal structures of two new isocoumarin derivatives: 8-amino-6-methyl-3,4-diphenyl-1 H-isochromen-1-one and 8-amino-3,4-diethyl-6-methyl-1 H-isochromen-1-one. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2019; 75:1117-1122. [PMID: 31417776 PMCID: PMC6690470 DOI: 10.1107/s2056989019009435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/01/2019] [Indexed: 11/16/2022]
Abstract
The crystal structures of two new isocoumarin derivatives, 8-amino-6-methyl-3,4-diphenyl-1H-isochromen-1-one and 8-amino-3,4-diethyl-6-methyl-1H-isochromen-1-one, are described. The intermolecular contacts in the crystals were analysed using Hirshfeld surface analysis and two-dimensional fingerprint plots. The title compounds, 8-amino-6-methyl-3,4-diphenyl-1H-isochromen-1-one, C22H17NO2, (I), and 8-amino-3,4-diethyl-6-methyl-1H-isochromen-1-one, C14H17NO2, (II), are new isocoumarin derivatives in which the isochromene ring systems are planar. Compound II crystallizes with two independent molecules (A and B) in the asymmetric unit. In I, the two phenyl rings are inclined to each other by 56.41 (7)° and to the mean plane of the 1H-isochromene ring system by 67.64 (6) and 44.92 (6)°. In both compounds, there is an intramolecular N—H⋯O hydrogen bond present forming an S(6) ring motif. In the crystal of I, molecules are linked by N—H⋯π interactions, forming chains along the b-axis direction. A C—H⋯π interaction links the chains to form layers parallel to (100). The layers are then linked by a second C—H⋯π interaction, forming a three-dimensional structure. In the crystal of II, the two independent molecules (A and B) are linked by N—H⋯O hydrogen bonds, forming –A–B–A–B– chains along the [101] direction. The chains are linked into ribbons by C—H⋯π interactions involving inversion-related A molecules. The latter are linked by offset π–π interactions [intercentroid distances vary from 3.506 (1) to 3.870 (2) Å], forming a three-dimensional structure.
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Affiliation(s)
- S Syed Abuthahir
- PG & Research Department of Physics, The New College (Autonomous), University of Madras, Chennai 600 014, Tamil Nadu, India
| | - M NizamMohideen
- PG & Research Department of Physics, The New College (Autonomous), University of Madras, Chennai 600 014, Tamil Nadu, India
| | - S Mayakrishnan
- Organic & Bioorganic Chemistry, CSIR-Central Leather Research Institute, Chennai 600 020, Tamilnadu, India
| | - N Uma Maheswari
- Organic & Bioorganic Chemistry, CSIR-Central Leather Research Institute, Chennai 600 020, Tamilnadu, India
| | - V Viswanathan
- Department of Biophysics, All India Institute of Medical Science, New Delhi 110 029, India
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9
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10
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Espinosa A, de las Heras E, Streubel R. Oxaphosphirane-Borane Complexes: Ring Strain and Migratory Insertion/Ring-Opening Reactions. Inorg Chem 2014; 53:6132-40. [PMID: 24902079 DOI: 10.1021/ic500536h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Arturo Espinosa
- Departamento
de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Edgar de las Heras
- Departamento
de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Rainer Streubel
- Institut für Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str.
1, 53121 Bonn, Germany
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11
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Abdrakhmanova L, Schnakenburg G, Espinosa A, Streubel R. The 3-Acetyloxaphosphirane/1,3,2-Dioxaphosphol-4-ene Rearrangement. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301169] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Espinosa A, Streubel R. Exocyclic Bond Cleavage in Oxaphosphirane Complexes? Chemistry 2012; 18:13405-11. [DOI: 10.1002/chem.201201057] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/26/2012] [Indexed: 11/10/2022]
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13
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Espinosa A, Gómez C, Streubel R. Single Electron Transfer-Mediated Selective endo- and exocyclic Bond Cleavage Processes in Azaphosphiridine Chromium(0) Complexes: A Computational Study. Inorg Chem 2012; 51:7250-6. [DOI: 10.1021/ic300522g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arturo Espinosa
- Departamento de Química
Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo. 30100 Murcia, Spain
| | - Celia Gómez
- Departamento de Química
Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo. 30100 Murcia, Spain
| | - Rainer Streubel
- Institut für Anorganische
Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
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14
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Espinosa A, Streubel R. Computational Studies on Azaphosphiridines, or How to Effect Ring‐Opening Processes through Selective Bond Activation. Chemistry 2011; 17:3166-78. [DOI: 10.1002/chem.201002565] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Indexed: 11/12/2022]
Affiliation(s)
- Arturo Espinosa
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia (Spain), Fax: (+34) 868‐884149
| | - Rainer Streubel
- Institut für Anorganische Chemie der Rheinischen Friedrich‐Wilhelms‐Universität Bonn, Gerhard‐Domagk‐Str. 1, 53121 Bonn (Germany), Fax: (+49) 228‐739616
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15
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Habib OMA, Zhao-Karger Z, Abdelhamid IA, Wartchow R, Butenschön H. Phthalimide Tricarbonylchromium Complexes: Synthesis, Characterization, Nucleophilic Addition, and Unanticipated syn Adduct Formation upon Addition of Propynyllithium. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Marinas Pérez J, Helten H, Donnadieu B, Reed C, Streubel R. Protonation-Induced Rearrangement of an Oxaphosphirane Complex. Angew Chem Int Ed Engl 2010; 49:2615-8. [DOI: 10.1002/anie.200906825] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Marinas Pérez J, Helten H, Donnadieu B, Reed C, Streubel R. Protonen-induzierte Umlagerung eines Oxaphosphirankomplexes. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906825] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Streubel R, Bode M, Marinas Pérez J, Schnakenburg G, Daniels J, Nieger M, Jones PG. Facile Synthesis of Pentacarbonyltungsten(0) Complexes with Oxaphosphirane Ligands. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200900063] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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19
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Babar TM, Qadeer G, Rama NH, Khawar Rauf M, Wong WY. 3-Benzyl-isochroman-1-one. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o498. [PMID: 21582163 PMCID: PMC2968672 DOI: 10.1107/s1600536809004164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 02/04/2009] [Indexed: 11/10/2022]
Abstract
In the mol-ecule of the title compound, C(16)H(14)O(2), the aromatic rings are oriented at a dihedral angle of 78.49 (3)°. The heterocyclic ring adopts a twist conformation. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains along the c axis.
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20
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Babar TM, Qadeer G, Rama NH, Akhtar J, Helliwell M. 3-(3-Fluoro-benz-yl)isochroman-1-one. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o418. [PMID: 21582007 PMCID: PMC2968246 DOI: 10.1107/s1600536809003304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 01/27/2009] [Indexed: 05/30/2023]
Abstract
In the mol-ecule of the title compound, C(16)H(13)FO(2), the aromatic rings are oriented at a dihedral angle of 74.46 (4)°. The heterocyclic ring adopts a twisted conformation. In the crystal structure, there is a weak C-H⋯π inter-action.
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Affiliation(s)
| | - Ghulam Qadeer
- Department of Chemistry, Quaid-i-Azam Univeristy, Islamabad 45320, Pakistan
| | - Nasim Hasan Rama
- Department of Chemistry, Quaid-i-Azam Univeristy, Islamabad 45320, Pakistan
| | - Javeed Akhtar
- Manchester Materials Science Centre and Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, England
| | - Madeleine Helliwell
- Manchester Materials Science Centre and Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, England
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Hussain MT, Tahir MN, Adnan A, Hanif Ch A, Rama NH. 3-(4-Methoxy-phen-yl)isochroman-1-one. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o2111. [PMID: 21580975 PMCID: PMC2959622 DOI: 10.1107/s1600536808032625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2008] [Accepted: 10/09/2008] [Indexed: 11/10/2022]
Abstract
In the molecule of the title compound, C16H14O3, the aromatic rings are oriented at a dihedral angle of 72.02 (6)°. The heterocyclic ring adopts a twisted conformation. In the crystal structure, there are C—H⋯π contacts between the heterocyclic and phenyl rings, and between the methyl group and methoxyphenyl ring.
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22
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Butenschön H, C. Kohser S, Gopal Dongol K. Synthesis of spiro-Annelated Isochromanones by Ring Expansion of Benzocyclobutenones in the Presence of Lithium Diisopropylphosphide. HETEROCYCLES 2007. [DOI: 10.3987/com-07-s(w)11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Leinweber D, Weidner I, Wilhelm R, Wartchow R, Butenschön H. Synthesis of Enantiopure Tricarbonyl(indan-1,2-dione)chromium. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500527] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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