1
|
Wang X, Feng C, Jiang J, Maeda S, Kubota K, Ito H. Stereospecific synthesis of silicon-stereogenic optically active silylboranes and general synthesis of chiral silyl Anions. Nat Commun 2023; 14:5561. [PMID: 37689789 PMCID: PMC10492825 DOI: 10.1038/s41467-023-41113-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/23/2023] [Indexed: 09/11/2023] Open
Abstract
Silicon-stereogenic optically active silylboranes could potentially allow the formation of chiral silyl nucleophiles as well as the synthesis of various chiral silicon compounds. However, the synthesis of such silicon-stereogenic silylboranes has not been achieved so far. Here, we report the synthesis of silicon-stereogenic optically active silylboranes via a stereospecific Pt(PPh3)4-catalyzed Si-H borylation of chiral hydrosilanes, which are synthesized by stoichiometric and catalytic asymmetric synthesis, in high yield and very high or perfect enantiospecificity (99% es in one case, and >99% es in the others) with retention of the configuration. Furthermore, we report a practical approach to generate silicon-stereogenic silyl nucleophiles with high enantiopurity and configurational stability using MeLi activation. This protocol is suitable for the stereospecific and general synthesis of silicon-stereogenic trialkyl-, dialkylbenzyl-, dialkylaryl-, diarylalkyl-, and alkylary benzyloxy-substituted silylboranes and their corresponding silyl nucleophiles with excellent enantiospecificity (>99% es except one case of 99% es). Transition-metal-catalyzed C-Si bond-forming cross-coupling reactions and conjugate-addition reactions are also demonstrated. The mechanisms underlying the stability and reactivity of such chiral silyl anion were investigated by combining NMR spectroscopy and DFT calculations.
Collapse
Affiliation(s)
- Xihong Wang
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
| | - Chi Feng
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Julong Jiang
- Department of Chemistry, Faculty of Science, Hokkaido University Sapporo, Hokkaido, 060-0815, Japan
| | - Satoshi Maeda
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University Sapporo, Hokkaido, 060-0815, Japan
| | - Koji Kubota
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan.
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan.
| | - Hajime Ito
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan.
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan.
| |
Collapse
|
2
|
Gao J, He C. Chiral Silanols: Strategies and Tactics for Their Synthesis. Chemistry 2023; 29:e202203475. [PMID: 36617499 DOI: 10.1002/chem.202203475] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/10/2023]
Abstract
Silanols are valuable and important compounds, which have found widespread applications in the field of materials science, synthetic chemistry, and medicinal chemistry. Although a handful of approaches have been developed for the synthesis of various silanols, access to enantioenriched silicon-stereogenic silanols remains underdeveloped. This Concept article intends to summarize and highlight recent advances in the construction of silicon-stereogenic silanols and endeavors to encourage further research in this area.
Collapse
Affiliation(s)
- Jihui Gao
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China.,Key Laboratory of Organosilicon Chemistry, and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, P. R. China
| |
Collapse
|
3
|
Langenohl F, Rösler J, Zühlke S, Kirchhoff JL, Strohmann C. A Silicon-Stereogenic Silanol - 18 O-Isotope Labeling and Stereogenic Probe Reveals Hidden Stereospecific Water Exchange Reaction. Chemistry 2023; 29:e202202935. [PMID: 36166278 PMCID: PMC10100314 DOI: 10.1002/chem.202202935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Indexed: 01/04/2023]
Abstract
A silicon-stereogenic aminosilanol was isolated in excellent diastereomeric ratio and the absolute configuration was determined. The silanol is configurative and condensation stable in solution and shows stereoselective transformations with a clean stereospecific pathway in follow-up reactions, which leads to the isolation of a silicon-stereogenic zinc complex and siloxane compounds. Investigations with 18 O-labelled water and mass spectrometry analysis revealed an otherwise hidden exchange of oxygen atoms of silanol and water in solution that proceeds with retention of the configuration at the silicon center. This novel combination of a stereochemical probe and isotopic labeling in a silicon-stereogenic compound opens new analytic possibilities to study stereochemical courses of reactions with the aid of chiral silanols mechanistically.
Collapse
Affiliation(s)
- Felix Langenohl
- Inorganic Chemistry, TU Dortmund University, Otto-Hahn-Straße 6/6a, 44227, Dortmund, Germany
| | - Jonas Rösler
- Center for Mass Spectrometry (CMS), TU Dortmund University, Otto-Hahn-Straße 6/6a, 44227, Dortmund, Germany
| | - Sebastian Zühlke
- Center for Mass Spectrometry (CMS), TU Dortmund University, Otto-Hahn-Straße 6/6a, 44227, Dortmund, Germany
| | - Jan-Lukas Kirchhoff
- Inorganic Chemistry, TU Dortmund University, Otto-Hahn-Straße 6/6a, 44227, Dortmund, Germany
| | - Carsten Strohmann
- Inorganic Chemistry, TU Dortmund University, Otto-Hahn-Straße 6/6a, 44227, Dortmund, Germany
| |
Collapse
|
4
|
Bauer JO. Influence of Amino Functions on the Coordination Ability of Silyl Ethers and Disiloxanes. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00663] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jonathan O. Bauer
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie, Universität Regensburg, Universitätsstraße 31, Regensburg D-93053, Germany
| |
Collapse
|
5
|
Deis T, Maury J, Medici F, Jean M, Forte J, Vanthuyne N, Fensterbank L, Lemière G. Synthesis and Optical Resolution of Configurationally Stable Zwitterionic Pentacoordinate Silicon Derivatives. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Thomas Deis
- Institut Parisien de Chimie Moléculaire Sorbonne Université, CNRS 4 Place Jussieu, CC 229 F-75252 Paris Cedex 05 France
| | - Julien Maury
- Institut Parisien de Chimie Moléculaire Sorbonne Université, CNRS 4 Place Jussieu, CC 229 F-75252 Paris Cedex 05 France
| | - Fabrizio Medici
- Institut Parisien de Chimie Moléculaire Sorbonne Université, CNRS 4 Place Jussieu, CC 229 F-75252 Paris Cedex 05 France
| | - Marion Jean
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2 F-13397 Marseille Cedex 20 France
| | - Jérémy Forte
- Institut Parisien de Chimie Moléculaire Sorbonne Université, CNRS 4 Place Jussieu, CC 229 F-75252 Paris Cedex 05 France
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2 F-13397 Marseille Cedex 20 France
| | - Louis Fensterbank
- Institut Parisien de Chimie Moléculaire Sorbonne Université, CNRS 4 Place Jussieu, CC 229 F-75252 Paris Cedex 05 France
| | - Gilles Lemière
- Institut Parisien de Chimie Moléculaire Sorbonne Université, CNRS 4 Place Jussieu, CC 229 F-75252 Paris Cedex 05 France
| |
Collapse
|
6
|
Deis T, Maury J, Medici F, Jean M, Forte J, Vanthuyne N, Fensterbank L, Lemière G. Synthesis and Optical Resolution of Configurationally Stable Zwitterionic Pentacoordinate Silicon Derivatives. Angew Chem Int Ed Engl 2021; 61:e202113836. [PMID: 34767686 DOI: 10.1002/anie.202113836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Indexed: 11/08/2022]
Abstract
Stereogenic silicon centres in functionalised tetracoordinated organosilanes generally exhibit very high configurational stability under neutral conditions. This stability drops completely when higher coordination states of the silicon centre are reached due to rapid substituent exchange. Herein we describe the synthesis of chiral and neutral pentacoordinate silicon derivatives with high configurational stability. The zwitterionic nature of these air- and water-tolerant species allows for the first time their direct and efficient optical resolution using chiral HPLC techniques. By means of this method, pentacoordinate silicon compounds exhibiting high Si-inversion have been obtained as single enantiomers. A rationalisation of the enantiomerisation pathways has been also carried out using DFT calculations.
Collapse
Affiliation(s)
- Thomas Deis
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, 4 Place Jussieu, CC 229, F-75252, Paris Cedex 05, France
| | - Julien Maury
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, 4 Place Jussieu, CC 229, F-75252, Paris Cedex 05, France
| | - Fabrizio Medici
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, 4 Place Jussieu, CC 229, F-75252, Paris Cedex 05, France
| | - Marion Jean
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, F-13397, Marseille Cedex 20, France
| | - Jérémy Forte
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, 4 Place Jussieu, CC 229, F-75252, Paris Cedex 05, France
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, F-13397, Marseille Cedex 20, France
| | - Louis Fensterbank
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, 4 Place Jussieu, CC 229, F-75252, Paris Cedex 05, France
| | - Gilles Lemière
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, 4 Place Jussieu, CC 229, F-75252, Paris Cedex 05, France
| |
Collapse
|
7
|
Zheng L, Nie X, Wu Y, Wang P. Construction of Si‐Stereogenic Silanes through C−H Activation Approach. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101084] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Long Zheng
- School of Chemistry and Material Sciences Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiao‐Xue Nie
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| | - Yichen Wu
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| | - Peng Wang
- School of Chemistry and Material Sciences Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China
- State key laboratory of organometallic chemistry Center for excellence in molecular synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences CAS 345 Lingling Road Shanghai 200032 P. R. China
| |
Collapse
|
8
|
Achternbosch M, Zibula L, Kirchhoff JL, Bauer JO, Strohmann C. Primary Amine Functionalization of Alkoxysilanes: Synthesis, Selectivity, and Mechanistic Insights. Inorg Chem 2021; 60:11562-11568. [PMID: 34240858 DOI: 10.1021/acs.inorgchem.1c01529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a highly selective substitution of silicon-bound methoxy groups by primary lithium amides. This unusual reactivity is possible because of the formation of particularly stable lithium methoxide, which compensates for the decreased Si-N bond enthalpy compared to Si-O bonds. In contrast to substitution reactions on halosilanes, highly selective monosubstitutions under mild conditions are possible, even in the presence of further reactive methoxy groups. A combination of experiments and density functional theory calculations was carried out in order to get an extensive understanding of the reaction. The calculations reveal a possible reaction mechanism with considerably low activation barriers and the entry of the nucleophile to be the rate-determining step. The low activation energies allow for the substitutions to be carried out at low temperatures, therefore preventing side reactions from occurring. The presented investigations expand the view of fundamental transformation processes on silicon and give access to a wide variety of functionalized silicon-based building blocks for various fields of chemistry.
Collapse
Affiliation(s)
- Moritz Achternbosch
- Institut für Anorganische Chemie, Fakultät für Chemie und Chemische Biologie Technische Universität Dortmund Otto-Hahn-Strasse 6, D-44227 Dortmund, Germany
| | - Lukas Zibula
- Institut für Anorganische Chemie, Fakultät für Chemie und Chemische Biologie Technische Universität Dortmund Otto-Hahn-Strasse 6, D-44227 Dortmund, Germany
| | - Jan-Lukas Kirchhoff
- Institut für Anorganische Chemie, Fakultät für Chemie und Chemische Biologie Technische Universität Dortmund Otto-Hahn-Strasse 6, D-44227 Dortmund, Germany
| | - Jonathan O Bauer
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstrasse 31, D-93053 Regensburg, Germany
| | - Carsten Strohmann
- Institut für Anorganische Chemie, Fakultät für Chemie und Chemische Biologie Technische Universität Dortmund Otto-Hahn-Strasse 6, D-44227 Dortmund, Germany
| |
Collapse
|
9
|
Bauer JO. Crystal Structure and Hirshfeld Surface Analysis of Trimethoxy(1‐naphthyl)silane – Intermolecular Interactions in a One‐Component Single‐Crystalline Trimethoxysilane. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100027] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jonathan O. Bauer
- Institut für Anorganische Chemie Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 D-93053 Regensburg Germany
| |
Collapse
|
10
|
Fontana N, Espinosa‐Jalapa NA, Seidl M, Bauer JO. Easy Access to Enantiomerically Pure Heterocyclic Silicon-Chiral Phosphonium Cations and the Matched/Mismatched Case of Dihydrogen Release. Chemistry 2021; 27:2649-2653. [PMID: 33264430 PMCID: PMC7898527 DOI: 10.1002/chem.202005171] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Indexed: 11/17/2022]
Abstract
Phosphonium ions are widely used in preparative organic synthesis and catalysis. The provision of new types of cations that contain both functional and chiral information is a major synthetic challenge and can open up new horizons in asymmetric cation-directed and Lewis acid catalysis. We discovered an efficient methodology towards new Si-chiral four-membered CPSSi* heterocyclic cations. Three synthetic approaches are presented. The stereochemical sequence of anchimerically assisted cation formation with B(C6 F5 )3 and subsequent hydride addition was fully elucidated and proceeds with excellent preservation of the chiral information at the stereogenic silicon atom. Also the mechanism of dihydrogen release from a protonated hydrosilane was studied in detail by the help of Si-centered chirality as stereochemical probe. Chemoselectivity switch (dihydrogen release vs. protodesilylation) can easily be achieved through slight modifications of the solvent. A matched/mismatched case was identified and the intermolecularity of this reaction supported by spectroscopic, kinetic, deuterium-labeling experiments, and quantum chemical calculations.
Collapse
Affiliation(s)
- Nicolò Fontana
- Institut für Anorganische ChemieFakultät für Chemie und PharmazieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Noel Angel Espinosa‐Jalapa
- Institut für Anorganische ChemieFakultät für Chemie und PharmazieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Michael Seidl
- Institut für Anorganische ChemieFakultät für Chemie und PharmazieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Jonathan O. Bauer
- Institut für Anorganische ChemieFakultät für Chemie und PharmazieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| |
Collapse
|
11
|
Bauer JO, Strohmann C. Unusual Coordination Pattern of the Lithium Center in a Chiral α-Lithiated Silicon Compound. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00756] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jonathan O. Bauer
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie, Universität Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Carsten Strohmann
- Institut für Anorganische Chemie, Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 6, D-44227 Dortmund, Germany
| |
Collapse
|
12
|
Mu D, Yuan W, Chen S, Wang N, Yang B, You L, Zu B, Yu P, He C. Streamlined Construction of Silicon-Stereogenic Silanes by Tandem Enantioselective C–H Silylation/Alkene Hydrosilylation. J Am Chem Soc 2020; 142:13459-13468. [DOI: 10.1021/jacs.0c04863] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Delong Mu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Wei Yuan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Shuyou Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Na Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Bo Yang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lijun You
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Bing Zu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Peiyuan Yu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| |
Collapse
|
13
|
Jagannathan JR, Fettinger JC, Shaw JT, Franz AK. Enantioselective Si-H Insertion Reactions of Diarylcarbenes for the Synthesis of Silicon-Stereogenic Silanes. J Am Chem Soc 2020; 142:11674-11679. [PMID: 32539370 PMCID: PMC7747653 DOI: 10.1021/jacs.0c04533] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We report the first example of enantioselective, intermolecular diarylcarbene insertion into Si-H bonds for the synthesis of silicon-stereogenic silanes. Dirhodium(II) carboxylates catalyze an Si-H insertion using carbenes derived from diazo compounds where selective formation of an enantioenriched silicon center is achieved using prochiral silanes. Fourteen prochiral silanes were evaluated with symmetrical and prochiral diazo reactants to produce a total of 25 novel silanes. Adding an ortho substituent on one phenyl ring of a prochiral diazo enhances enantioselectivity up to 95:5 er with yields up to 98%. Using in situ IR spectroscopy, the impact of the off-cycle azine formation is supported based on the structural dependence for relative rates of diazo decomposition. A catalytic cycle is proposed with Si-H insertion as the rate-determining step, supported by kinetic isotope experiments. Transformations of an enantioenriched silane derived from this method, including selective synthesis of a novel sila-indane, are demonstrated.
Collapse
Affiliation(s)
- Jake R. Jagannathan
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - James C. Fettinger
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Jared T. Shaw
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Annaliese K. Franz
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| |
Collapse
|
14
|
Bauer JO. The crystal structure of the triclinic polymorph of hexameric (trimethylsilyl)methyllithium, C 24H 66Li 6Si 6. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2019-0662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C24H66Li6Si6, triclinic, P1̄ (no. 2), a = 12.2492(9) Å, b = 12.4617(9) Å, c = 14.3841(11) Å, α = 74.189(6), β = 74.543(7), γ = 85.970(6), V = 2036.2(3) Å3, Z = 2, R
gt(F) = 0.0465, wR
ref(F
2) = 0.0802, T = 173(2) K.
Collapse
Affiliation(s)
- Jonathan O. Bauer
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie, Universität Regensburg , Universitätsstraße 31 , D-93053 Regensburg , Germany
| |
Collapse
|
15
|
Espinosa-Jalapa NA, Berg N, Seidl M, Shenderovich IG, Gschwind RM, Bauer JO. Complexation behaviour of LiCl and LiPF6– model studies in the solid-state and in solution using a bidentate picolyl-based ligand. Chem Commun (Camb) 2020; 56:13335-13338. [DOI: 10.1039/d0cc05682k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Using a new bulky bidentate ligand and combining various structure elucidation methods, coordination modes of [ligand·LiX] (X = Cl, PF6) complexes both in solid-state and in solution have been revealed.
Collapse
Affiliation(s)
- Noel Angel Espinosa-Jalapa
- Institut für Anorganische Chemie
- Fakultät für Chemie und Pharmazie
- Universität Regensburg
- D-93053 Regensburg
- Germany
| | - Nele Berg
- Institut für Organische Chemie
- Fakultät für Chemie und Pharmazie
- Universität Regensburg
- D-93053 Regensburg
- Germany
| | - Michael Seidl
- Institut für Anorganische Chemie
- Fakultät für Chemie und Pharmazie
- Universität Regensburg
- D-93053 Regensburg
- Germany
| | - Ilya G. Shenderovich
- Institut für Organische Chemie
- Fakultät für Chemie und Pharmazie
- Universität Regensburg
- D-93053 Regensburg
- Germany
| | - Ruth M. Gschwind
- Institut für Organische Chemie
- Fakultät für Chemie und Pharmazie
- Universität Regensburg
- D-93053 Regensburg
- Germany
| | - Jonathan O. Bauer
- Institut für Anorganische Chemie
- Fakultät für Chemie und Pharmazie
- Universität Regensburg
- D-93053 Regensburg
- Germany
| |
Collapse
|
16
|
Marro EA, Folster CP, Press EM, Im H, Ferguson JT, Siegler MA, Klausen RS. Stereocontrolled Syntheses of Functionalized cis- and trans-Siladecalins. J Am Chem Soc 2019; 141:17926-17936. [PMID: 31600060 DOI: 10.1021/jacs.9b09902] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the synthesis of both diastereomers of an all-silicon analog of decalin. Carbocyclic decalin is a ubiquitous bicyclic structural motif. The siladecalin synthesis provides materials functionalized with either Si-Ph or Si-H groups, versatile entry points for further chemical diversification. The synthesis of silicon-stereogenic silanes is significantly less precedented than the synthesis of asymmetric carbon centers, and strategies for control of relative stereochemistry in oligosilanes are hardly described. This study offers insights of potential generality, such as the epimerization of the cis-isomer to the thermodynamically downhill trans-isomer via a hypothesized pentavalent intermediate. Decalin is a classic example in the conformational analysis of organic ring systems, and the carbocyclic diastereomers have highly divergent conformational profiles. Like the carbocycle, we observe different conformational properties in cis- and trans-siladecalins with consequences for NMR spectroscopy, optical properties, and vibrational spectroscopy. This study showcases the utility of targeted synthesis for preparing complex and functionalized polycyclic silanes.
Collapse
Affiliation(s)
- Eric A Marro
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Carlton P Folster
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Eric M Press
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Hoyeon Im
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - John T Ferguson
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Maxime A Siegler
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Rebekka S Klausen
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| |
Collapse
|
17
|
Barth ER, Krupp A, Langenohl F, Brieger L, Strohmann C. Kinetically controlled asymmetric synthesis of silicon-stereogenic methoxy silanes using a planar chiral ferrocene backbone. Chem Commun (Camb) 2019; 55:6882-6885. [PMID: 31134229 DOI: 10.1039/c9cc03619a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We present a mechanistic proposal for the desymmetrisation of dimethoxy silanes with alkyllithiums. The stereochemical pathway is highly defined by the coordination of the metal lithium, which suppresses the reversible interconversion of the various pentavalent intermediates. The predicted kinetic control of the stereoinduction is verified by the experiments using a planar chiral ferrocene backbone.
Collapse
Affiliation(s)
- Eva R Barth
- Institute for Inorganic Chemistry, Technical University Dortmund, University, Otto-Hahn-Straße 6, 44227 Dortmund, Germany.
| | | | | | | | | |
Collapse
|
18
|
Lin Y, Ma W, Xu Z, Zheng Z, Cao J, Yang K, Cui Y, Xu L. Desymmetrization‐Oriented Enantioselective Synthesis of Silicon‐Stereogenic Silanes by Palladium‐Catalyzed C−H Olefinations. Chem Asian J 2019; 14:2082-2085. [DOI: 10.1002/asia.201900408] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/07/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Yan Lin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Wei‐Yang Ma
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Zhan‐Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Ke‐Fang Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Yu‐Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Li‐Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| |
Collapse
|
19
|
Shintani R. Catalytic Asymmetric Synthesis of Silicon-Stereogenic Compounds by Enantioselective Desymmetrization of Prochiral Tetraorganosilanes. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.1163] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
| |
Collapse
|
20
|
Mu QC, Chen J, Xia CG, Xu LW. Synthesis of silacyclobutanes and their catalytic transformations enabled by transition-metal complexes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.06.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
21
|
van der Boon LJ, van Gelderen L, de Groot TR, Lutz M, Slootweg JC, Ehlers AW, Lammertsma K. Chiral Control in Pentacoordinate Systems: The Case of Organosilicates. Inorg Chem 2018; 57:12697-12708. [PMID: 30277076 PMCID: PMC6209177 DOI: 10.1021/acs.inorgchem.8b01861] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Indexed: 11/29/2022]
Abstract
Chirality at the central element of pentacoordinate systems can be controlled with two identical bidentate ligands. In such cases the topological Levi-Desargues graph for all the Berry pseudorotations (BPR, max. 20) reduces to interconnected inner and outer "circles" that represent the dynamic enantiomer pair. High enough barriers of the BPR crossovers between the two circles is all what is needed to ascertain chiral integrity. This is illustrated computationally and experimentally for the organosilicates 7 and 10 that carry besides a Me (a), Et (b), Ph (c), or F (d) group two bidentate 2-(phenyl)benzo[ b]-thiophene or 2-(phenyl)naphthyl ligands, respectively. The enantiomers of tetraorganosilane precursor 9 could be separated by column chromatography. Their chiral integrity persisted on forming the silicates. CD spectra are reported for 10c. Fluoro derivative 10d is shown to have its electronegative F substituent in an equatorial position, is stable toward hydrolysis, and its enantiomers do not racemize at ambient temperatures, while those of 10c racemize slowly.
Collapse
Affiliation(s)
- Leon J.
P. van der Boon
- Department
of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Laurens van Gelderen
- Department
of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Tim R. de Groot
- Department
of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Martin Lutz
- Crystal
and Structural Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584
CH Utrecht, The Netherlands
| | - J. Chris Slootweg
- Department
of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 HX Amsterdam, The Netherlands
| | - Andreas W. Ehlers
- Department
of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 HX Amsterdam, The Netherlands
- Department
of Chemistry, University of Johannesburg, Auckland Park, Johannesburg 2006, South
Africa
| | - Koop Lammertsma
- Department
of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
- Department
of Chemistry, University of Johannesburg, Auckland Park, Johannesburg 2006, South
Africa
| |
Collapse
|
22
|
van der Boon LJP, Fuku-En SI, Slootweg JC, Lammertsma K, Ehlers AW. Toward Asymmetric Synthesis of Pentaorganosilicates. Top Catal 2018; 61:674-684. [PMID: 31007498 PMCID: PMC6445452 DOI: 10.1007/s11244-018-0967-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Introducing chiral silicon centers was explored for the asymmetric Rh-catalyzed cyclization of dihydrosilanes to enantiomerically enriched spirosilanes as targets to enable access to enantiostable pentacoordinate silicates. The steric rigidity required in such systems demands the presence of two naphthyl or benzo[b]thiophene groups. The synthetic approach to the expanded spirosilanes extends Takai’s method (Kuninobu et al. in Angew Chem Int Ed 52(5):1520–1522, 2013) for the synthesis of spirosilabifluorenes in which both a Si–H and a C–H bond of a dihydrosilane are activated by a rhodium catalyst. The expanded dihydrosilanes were obtained from halogenated aromatic precursors. Their asymmetric cyclization to the spirosilanes were conducted with [Rh(cod)Cl]2 in the presence of the chiral bidentate phosphane ligands (R)-BINAP, (R)-MeO-BIPHEP, and (R)-SEGPHOS, including derivatives with P-(3,5-t-Bu-4-MeO)-phenyl (DTBM) groups. The highest enantiomeric excess of 84% was obtained for 11,11′-spirobi[benzo[b]-naphtho[2,1-d]silole] with the DTBM-SEGPHOS ligand.
Collapse
Affiliation(s)
- Leon J P van der Boon
- 1Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Shin-Ichi Fuku-En
- 1Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.,2Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8526 Japan
| | - J Chris Slootweg
- 1Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.,3Present Address: Van 't Hof Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 HX Amsterdam, The Netherlands
| | - Koop Lammertsma
- 1Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.,4Department of Chemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006 South Africa
| | - Andreas W Ehlers
- 1Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.,3Present Address: Van 't Hof Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 HX Amsterdam, The Netherlands.,4Department of Chemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006 South Africa
| |
Collapse
|
23
|
Li N, Guan BT. Yttrium-Benzyl Complexes Bearing Chiral Iminophosphonamide Ligands: Synthesis and Application in Catalytic Asymmetric Amine-Silane Dehydrocoupling Reactions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700327] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nan Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry
| | - Bing-Tao Guan
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 People's Republic of China
| |
Collapse
|
24
|
Bai XF, Zou JF, Chen MY, Xu Z, Li L, Cui YM, Zheng ZJ, Xu LW. Lewis-Base-Mediated Diastereoselective Silylations of Alcohols: Synthesis of Silicon-Stereogenic Dialkoxysilanes Controlled by Chiral Aryl BINMOLs. Chem Asian J 2017; 12:1730-1735. [DOI: 10.1002/asia.201700640] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Xing-Feng Bai
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
- Suzhou Research Institute and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P.R. China
| | - Jin-Feng Zou
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
| | - Mu-Yi Chen
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 P.R. China
- Suzhou Research Institute and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P.R. China
| |
Collapse
|
25
|
Koller SG, Bauer JO, Strohmann C. Selektive Si-C(sp3
)-Bindungsspaltung in (Aminomethyl)silanen durch carbanionische Nucleophile und ihr stereochemischer Verlauf. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702410] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Stephan G. Koller
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
| | - Jonathan O. Bauer
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
- Institut für Anorganische Chemie; Universität Regensburg; Deutschland
| | - Carsten Strohmann
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
| |
Collapse
|
26
|
Koller SG, Bauer JO, Strohmann C. Selective Si−C(sp3
) Bond Cleavage in (Aminomethyl)silanes by Carbanionic Nucleophiles and Its Stereochemical Course. Angew Chem Int Ed Engl 2017; 56:7991-7994. [DOI: 10.1002/anie.201702410] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Stephan G. Koller
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Strasse 6 44227 Dortmund Germany
| | - Jonathan O. Bauer
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Strasse 6 44227 Dortmund Germany
- Current address: Institut für Anorganische Chemie; Universität Regensburg; Germany
| | - Carsten Strohmann
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Strasse 6 44227 Dortmund Germany
| |
Collapse
|
27
|
|
28
|
Zhang QW, An K, Liu LC, Zhang Q, Guo H, He W. Construction of Chiral Tetraorganosilicons by Tandem Desymmetrization of Silacyclobutanes/Intermolecular Dehydrogenative Silylation. Angew Chem Int Ed Engl 2016; 56:1125-1129. [DOI: 10.1002/anie.201609022] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Qing-Wei Zhang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Kun An
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Li-Chuan Liu
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Qi Zhang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Huifang Guo
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Wei He
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| |
Collapse
|
29
|
Zhang QW, An K, Liu LC, Zhang Q, Guo H, He W. Construction of Chiral Tetraorganosilicons by Tandem Desymmetrization of Silacyclobutanes/Intermolecular Dehydrogenative Silylation. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609022] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qing-Wei Zhang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Kun An
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Li-Chuan Liu
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Qi Zhang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Huifang Guo
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Wei He
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| |
Collapse
|
30
|
Zhang J, Xu JZ, Zheng ZJ, Xu Z, Cui YM, Cao J, Xu LW. Palladium-Catalyzed Desymmetrization of Silacyclobutanes with Alkynes to Silicon-Stereogenic Silanes: A Density Functional Theory Study. Chem Asian J 2016; 11:2867-2875. [PMID: 27325305 DOI: 10.1002/asia.201600709] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 06/18/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Jin Zhang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 1378, Wenyi West Road, Science Park of HZNU Hangzhou 311121 China
| | - Jin-Zhou Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 1378, Wenyi West Road, Science Park of HZNU Hangzhou 311121 China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 1378, Wenyi West Road, Science Park of HZNU Hangzhou 311121 China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 1378, Wenyi West Road, Science Park of HZNU Hangzhou 311121 China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 1378, Wenyi West Road, Science Park of HZNU Hangzhou 311121 China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 1378, Wenyi West Road, Science Park of HZNU Hangzhou 311121 China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 1378, Wenyi West Road, Science Park of HZNU Hangzhou 311121 China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 P.R. China
| |
Collapse
|
31
|
Bauer JO, Strohmann C. Recent Progress in Asymmetric Synthesis and Application of Difunctionalized Silicon-Stereogenic Silanes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600100] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jonathan O. Bauer
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Germany
- Department of Organic Chemistry; The Weizmann Institute of Science; P. O. Box 26 76100 Rehovot Israel
| | - Carsten Strohmann
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Germany
| |
Collapse
|
32
|
Chen L, Huang JB, Xu Z, Zheng ZJ, Yang KF, Cui YM, Cao J, Xu LW. Palladium-catalyzed Si–C bond-forming silylation of aryl iodides with hydrosilanes: an enhanced enantioselective synthesis of silicon-stereogenic silanes by desymmetrization. RSC Adv 2016. [DOI: 10.1039/c6ra12873d] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
An enantioselective Pd-catalyzed silicon–carbon bond-forming silylation reaction of aryl iodides with hydrosilanes for the synthesis of silicon-stereogenic silanes has been developed with good enantioselectivity under mild conditions.
Collapse
Affiliation(s)
- Li Chen
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Jiang-Bo Huang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Ke-Fang Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
| |
Collapse
|
33
|
Hydrogen bonding principles in inclusion compounds of triphenylsilanol and pyrrolidine: Synthesis and structural features of [(Ph3SiOH)4·HN(CH2)4] and [Ph3SiOH·HN(CH2)4·CH3CO2H]. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.07.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
34
|
Ischenko AA. Effect of vibronic interactions on molecular structures determined by gas electron diffraction. Struct Chem 2015. [DOI: 10.1007/s11224-015-0667-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|