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Glowacki-Pallach B, Lutter M, Schollmeyer D, Hiller W, Jouikov V, Jurkschat K. Extending Chirality in Group XIV Metallatranes. Inorg Chem 2023; 62:7662-7680. [PMID: 37156016 DOI: 10.1021/acs.inorgchem.2c04242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The syntheses of the racemic amino alcohol rac-N(CH2CMe2OH)(CMe2CH2OH)(CH2CHMeOH) (L22'1*H3, 2) and its representative N(CH2CMe2OH)(CMe2CH2OH)(CH2C(R)HMeOH) (L22'1RH3, 3) with the stereogenic carbon center being R-configured are reported. Also reported are the stannatranes L22'1*SnOt-Bu (4) L22'1RSnOt-Bu (6) and germatranes L22'1*GeOEt (5) and L22'1RGeOEt (7) as well as the trinuclear tin oxocluster [(μ3-O)(μ3-O-t-Bu){SnL22'1R}3] (8). NMR and IR spectroscopy, electrospray ionization mass spectrometry (ESI MS), and single crystal X-ray diffraction analysis characterize these compounds. Computational studies accompany the experimental work and help understand the diastereoselectivity observed in the course of the metallatrane syntheses.
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Affiliation(s)
- Britta Glowacki-Pallach
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Michael Lutter
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Dieter Schollmeyer
- Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
| | - Wolf Hiller
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, 44221 Dortmund, Germany
| | | | - Klaus Jurkschat
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, 44221 Dortmund, Germany
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Kumar K, Srivastav N, Khera M, Goel N, Singh R, Kaur V. Mononuclear Pseudostannatranes Possessing Unsymmetrical [4.4.3.0 1,5]Tridecane Cage: Experimental and Theoretical Aspects of Reverse Kocheshkov Reaction in Phenyl Pseudostannatrane. Inorg Chem 2020; 59:13098-13108. [PMID: 32902284 DOI: 10.1021/acs.inorgchem.0c01202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthetic protocols, structural aspects, and spectroscopic aspects of mononuclear pseudostannatranes possessing a [4.4.3.01,5]tridecane cage have been reported. A tripodal ligand N(CH2CH2OH){CH2(2-t-Bu-4-Me-C6H2OH)}2 (H3L) having unsymmetrical arms was reacted with n-butyltrichlorostannane, phenyltrichlorostannane, and tin tetrachloride under different solvent systems to obtain pseudostannatranes (1-3). The reaction of n-butyltrichlorostannane and the ligand in CH3OH/Na/THF yielded an aqua complex of pseudostannatrane [LSnBu(H2O)] (1a), which was crystallized as its acetone solvate (i.e 1a·Me2CO). However, the same reactants yielded methanol complex [LSnBu(CH3OH)] (1b) when the reaction was carried out in the NaOCH3/C2H5OH system. Similarly, the reaction of phenyltrichlorostannane and the ligand under these solvent systems yielded pseudostannatranes, i.e., an aqua complex [LSnPh(H2O)] (2a) and a methanol complex [LSnPh(CH3OH)] (2b) (where 2a was crystallized as 2a·Me2CO). The reaction of tin tetrachloride and the ligand in the Et3N/THF system resulted in the formation of pseudostannatrane [LHSnCl2] (3). A similar product was isolated as its triethylamine solvate (3·NEt3) due to the disproportion reaction when PhSnCl3 was reacted with the ligand in the Et3N/C6H5CH3 system, which demonstrates the first report on the reverse Kocheshkov reaction in pseudostannatranes. The experimental findings on the formation of 3·NEt3 due to the reverse Kocheshkov reaction have been corroborated with 119Sn NMR spectroscopy and density functional calculations that provide insightful information about the underlying details of the reaction route.
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Affiliation(s)
- Keshav Kumar
- Department of Chemistry, Panjab University, Sector 14, Chandigarh 160014, India
| | - Neha Srivastav
- Department of Chemistry, Panjab University, Sector 14, Chandigarh 160014, India
| | - Mayank Khera
- Department of Chemistry, Panjab University, Sector 14, Chandigarh 160014, India
| | - Neetu Goel
- Department of Chemistry, Panjab University, Sector 14, Chandigarh 160014, India
| | - Raghubir Singh
- Department of Chemistry, DAV College, Sector 10, Chandigarh 160011, India
| | - Varinder Kaur
- Department of Chemistry, Panjab University, Sector 14, Chandigarh 160014, India
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Glowacki B, Lutter M, Hiller W, Jurkschat K. Control of Λ- and Δ-Isomerization of the Atrane Cages in Group XIV Metallatranes by Chiral Axial Substituents. Inorg Chem 2019; 58:4244-4252. [PMID: 30860360 DOI: 10.1021/acs.inorgchem.8b03312] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The syntheses of the novel stannatranes N(CH2CMe2O)3Sn-(1 S)-(-)-OC(O)C(OMe)(CF3)(C6H5), 1( S, Δ), and N(CH2CMe2O)3Sn-(1 R)-(+)-OC(O)C(OMe)(CF3)(C6H5), 2( R, Λ), and germatranes N(CH2CMe2O)3Ge-(1 S)-(-)-OC(O)C(OMe)(CF3)(C6H5), 3( S, Δ), and N(CH2CMe2O)3Ge-(1 R)-(+)-OC(O)C(OMe)(CF3)(C6H5), 4( R, Λ) (with 1, S, Δ-configured/2, R, Λ-configured and 3, S, Δ-configured/4, R, Λ-configured being pairs of enantiomers) are reported. The compounds were characterized by NMR and IR spectroscopy, electrospray ionization mass spectrometry, and single crystal X-ray diffraction analysis. The epimerization via Λ ⇌ Δ ring flip of the enantiomeric stannatrane pair 1( S, Δ)/2( R, Λ) was investigated by NMR experiments at variable temperatures and density functional theory (DFT) calculations.
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Affiliation(s)
- Britta Glowacki
- Fakultät für Chemie und Chemische Biologie , Technische Universität Dortmund , Dortmund 44221 , Germany
| | - Michael Lutter
- Fakultät für Chemie und Chemische Biologie , Technische Universität Dortmund , Dortmund 44221 , Germany
| | - Wolf Hiller
- Fakultät für Chemie und Chemische Biologie , Technische Universität Dortmund , Dortmund 44221 , Germany
| | - Klaus Jurkschat
- Fakultät für Chemie und Chemische Biologie , Technische Universität Dortmund , Dortmund 44221 , Germany
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Glowacki B, Lutter M, Schollmeyer D, Hiller W, Jurkschat K. Novel Stannatrane N(CH 2CMe 2O) 2(CMe 2CH 2O)SnO-t-Bu and Related Oligonuclear Tin(IV) Oxoclusters. Two Isomers in One Crystal. Inorg Chem 2016; 55:10218-10228. [PMID: 27673366 DOI: 10.1021/acs.inorgchem.6b01429] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The syntheses of the alkanolamine N(CH2CMe2OH)2(CMe2CH2OH) (1), of the stannatrane N(CH2CMe2O)2(CMe2CH2O)SnO-t-Bu (2), and of the trinuclear tin oxocluster 3 consisting of the two isomers [(μ3-O)(O-t-Bu){Sn(OCH2CMe2)(OCMe2CH2)2N}3] (3a) and [(μ3-O)(μ3-O-t-Bu){Sn(OCH2CMe2)(OCMe2CH2)2N}3] (3b) as well as the isolation of a few crystals of the hexanuclear tin oxocluster [LSnOSn(OH)3LSnOH]2 [L = N(CH2CMe2O)2(CMe2CH2O)] (4) are reported. The compounds were characterized by 1H, 13C, 15N, and 119Sn (1-3) nuclear magnetic resonance and infrared spectroscopy, electrospray ionization mass spectrometry, and single-crystal X-ray diffraction analysis (1-4). A graph set analysis was performed for compound 1. The relative energies of 3a and 3b were estimated by density functional theory calculations that show that the energy differences are small.
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Affiliation(s)
- Britta Glowacki
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund , 44221 Dortmund, Germany
| | - Michael Lutter
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund , 44221 Dortmund, Germany
| | - Dieter Schollmeyer
- Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz , 55099 Mainz, Germany
| | - Wolf Hiller
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund , 44221 Dortmund, Germany
| | - Klaus Jurkschat
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund , 44221 Dortmund, Germany
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Simidzija P, Lecours MJ, Marta RA, Steinmetz V, McMahon TB, Fillion E, Hopkins WS. Changes in Tricarbastannatrane Transannular N–Sn Bonding upon Complexation Reveal Lewis Base Donicities. Inorg Chem 2016; 55:9579-9585. [DOI: 10.1021/acs.inorgchem.6b01185] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Petar Simidzija
- Department of Chemistry, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
| | - Michael J. Lecours
- Department of Chemistry, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
| | - Rick A. Marta
- Department of Chemistry, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
| | - Vincent Steinmetz
- Laboratoire Chimie Physique—CLIO,
Bâtiment 201, Porte 2, Campus Universitaire d’Orsay, Orsay, 91405, France
| | - Terrance B. McMahon
- Department of Chemistry, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
| | - Eric Fillion
- Department of Chemistry, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
| | - W. Scott Hopkins
- Department of Chemistry, University of Waterloo, Waterloo, OntarioN2L 3G1, Canada
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Le Grognec E, Chrétien JM, Zammattio F, Quintard JP. Methodologies Limiting or Avoiding Contamination by Organotin Residues in Organic Synthesis. Chem Rev 2015; 115:10207-60. [DOI: 10.1021/acs.chemrev.5b00196] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Erwan Le Grognec
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jean-Mathieu Chrétien
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Françoise Zammattio
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jean-Paul Quintard
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
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Kavoosi A, Fillion E. Synthesis and Characterization of Tricarbastannatranes and Their Reactivity in B(C6F5)3-Promoted Conjugate Additions. Angew Chem Int Ed Engl 2015; 54:5488-92. [DOI: 10.1002/anie.201500983] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Indexed: 11/06/2022]
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8
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Kavoosi A, Fillion E. Synthesis and Characterization of Tricarbastannatranes and Their Reactivity in B(C6F5)3-Promoted Conjugate Additions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500983] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Srivastav N, Singh R, Kaur V. Carbastannatranes: a powerful coupling mediators in Stille coupling. RSC Adv 2015. [DOI: 10.1039/c5ra09960a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Carbastannatranes are better coupling mediators in Stille coupling due to easy transfer of axial Sn-bound hydrocarbyl substituent during transmetallation step.
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Affiliation(s)
- Neha Srivastav
- Department of Chemistry
- Panjab University
- Chandigarh-160014
- India
| | - Raghubir Singh
- Department of Chemistry
- D.A.V. College
- Chandigarh-160010
- India
| | - Varinder Kaur
- Department of Chemistry
- Panjab University
- Chandigarh-160014
- India
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