1
|
Cao K, Han J, Ye W, Hu D, Ye Z, Yang J, Zhang J, Chen F. Enantioselective Aminosilylation of Alkenes by Palladium/Ming-Phos-Catalyzed Tandem Narasaka-Heck/Silylation Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403470. [PMID: 38970207 DOI: 10.1002/advs.202403470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 06/08/2024] [Indexed: 07/08/2024]
Abstract
A Pd-catalyzed enantioselective aminosilylation of alkenes via tandem Aza-Heck/silylation reaction under Pd/Sadphos catalysis is disclosed. A wide array of oxime esters and silicon reagents are tolerated, furnishing the chiral pyrrolines bearing one quaternary or two contiguous stereocenters in good yield with high enantioselectivity. Not only terminal alkenes but also tri-substituented internal alkenes successfully participate in the reaction, delivering vicinal stereocenters in complete diastereoselectivity and high enantioselectivity. DFT study is conducted to probe the reaction pathway and the origin of the enantioselectivity, which revealed that the stereoinduction arises from the weak interaction between the aromatic ring of the substrate fragment and naphthyl group in the ligand.
Collapse
Affiliation(s)
- Kangning Cao
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University Shanghai, Shanghai, 200433, China
| | - Jie Han
- School of Chemical & Environmental Science, Shaanxi University of Technology, Hanzhong, 723001, China
| | - Wenshao Ye
- Department of Chemistry, Fudan University 2005 Songhu Road, Shanghai, 200438, China
| | - Dejun Hu
- Department of Chemistry, Fudan University 2005 Songhu Road, Shanghai, 200438, China
| | - Zihao Ye
- Department of Chemistry, Fudan University 2005 Songhu Road, Shanghai, 200438, China
| | - Junfeng Yang
- Department of Chemistry, Fudan University 2005 Songhu Road, Shanghai, 200438, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University 2005 Songhu Road, Shanghai, 200438, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
- Zhuhai Fudan Innovation Institute, Zhuhai, 519000, China
| | - Fener Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University Shanghai, Shanghai, 200433, China
| |
Collapse
|
2
|
Wang ZL, Wang Y, Sun YC, Zhao JB, Xu YH. Regiodivergent Hydrosilylation of Polar Enynes to Synthesize Site-Specific Silyl-Substituted Dienes. Angew Chem Int Ed Engl 2024; 63:e202405791. [PMID: 38593214 DOI: 10.1002/anie.202405791] [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: 03/25/2024] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/11/2024]
Abstract
Herein, we present catalyst-regulated switchable site-selective hydrosilylation of enynes, which are suitable for a wide range of alkyl and aryl substituted polar enynes and exhibit excellent functional group compatibility. Under the optimized conditions, silyl groups can be precisely installed at various positions of 1,3-dienes. While α- and γ-silylation products were obtained under platinum-catalytic systems, β-silylation products were delivered with [Cp*RuCl]4 as catalyst. This process lead to the formation of 1,3-dienoates with diverse substitutions, which would pose challenges with other methodologies.
Collapse
Affiliation(s)
- Zi-Lu Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Ying Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yu-Chen Sun
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jin-Bo Zhao
- Faculty of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, P.R. China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| |
Collapse
|
3
|
Chandrasekaran R, Selvam K, Rajeshkumar T, Chinnusamy T, Maron L, Rasappan R. Anti-Selective Carbosilylation: Nickel-Catalyzed Multicomponent Reaction of Solid Me 3SiZnI. Angew Chem Int Ed Engl 2024; 63:e202318689. [PMID: 38547324 DOI: 10.1002/anie.202318689] [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: 12/05/2023] [Indexed: 04/25/2024]
Abstract
The stereodefined and highly substituted vinylsilanes are essential building blocks for constructing complex organic molecules. Transition metal-mediated silylmetalation of alkynes was developed to overcome the limitations of conventional hydrosilylations; however, a very limited study was carried out to utilize transient vinylmetal species in cross-coupling reactions. Moreover, they produce syn-adduct, and the anti-selective cross-coupling is still unknown and highly desired. Silylzinc reagents are highly functional group tolerant, however, their synthesis from pyrophoric silyllithium and dissolved lithium salts hampers cross-coupling reactions. Our novel solid silylzinc reagents circumvent these constraints are employed in the anti-selective synthesis of vinylsilanes via a multi-component reaction involving Me3SiZnI, terminal alkynes, and activated alkyl halides. An intensive computational and experimental investigation of the mechanism reveals an equilibrium between the intermediate syn- and anti-adducts; the greater barrier at the single electron reduction of alkyl halides and the thermodynamic stability of the Ni(III) adduct determine the anti-selectivity.
Collapse
Affiliation(s)
- Revathi Chandrasekaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Keerthika Selvam
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Thayalan Rajeshkumar
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Tamilselvi Chinnusamy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Laurent Maron
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| |
Collapse
|
4
|
Namba N, Fujii S. Hydroboration of vinylsilanes providing diversity-oriented hydrophobic building blocks for biofunctional molecules. Org Biomol Chem 2024. [PMID: 38826124 DOI: 10.1039/d4ob00632a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Hydroboration of vinylsilanes with BH3 affords two silylethanol regioisomers. Herein, we investigated the regioisomeric ratio of hydroboration products from various vinylsilanes, focusing on the characteristic reaction profile. All investigated vinylsilanes afforded both regioisomers, and greater bulkiness increased the proportion of the Markovnikov products. The obtained silylethanols were used as hydrophobic building blocks for constructing nuclear progesterone receptor (PR) modulators. Notably, structural conversions from an α-isomer (silylethan-1-oxy derivative) to a β-isomer (2-silylethoxy derivative) caused complete activity-switching from a PR agonist to an antagonist. Our results indicate that silylethanols are useful for structural development, and vinylsilanes are a versatile source of hydrophobic building blocks for obtaining biofunctional molecules.
Collapse
Affiliation(s)
- Nao Namba
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Shinya Fujii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| |
Collapse
|
5
|
Kako M, Kai M, Yasui M, Yamada M, Maeda Y, Akasaka T. Two-fold addition reaction of silylene to C 60: structural and electronic properties of a bis-adduct. Beilstein J Org Chem 2024; 20:1179-1188. [PMID: 38887572 PMCID: PMC11181185 DOI: 10.3762/bjoc.20.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/30/2024] [Indexed: 06/20/2024] Open
Abstract
The addition reaction of C60 with silylene 1, a silicon analog of carbene, yielded the corresponding bis-adduct 3. The structure of 3 was determined by single-crystal X-ray structure analysis, representing the first example of a crystal structure of a silirane (silacyclopropane) derivative of fullerenes. Electrochemical measurements confirmed that the redox potentials of 3 are shifted cathodically compared to those of the parent mono-adduct 2. Density functional theory (DFT) calculations provided the basis for the electronic properties of compound 3.
Collapse
Affiliation(s)
- Masahiro Kako
- Department of Engineering Science, The University of Electro-Communications, Chofu 182-8585, Japan
| | - Masato Kai
- Department of Engineering Science, The University of Electro-Communications, Chofu 182-8585, Japan
| | - Masanori Yasui
- Department of Engineering Science, The University of Electro-Communications, Chofu 182-8585, Japan
| | - Michio Yamada
- Department of Chemistry, Tokyo Gakugei University, Tokyo 184-8501, Japan
| | - Yutaka Maeda
- Department of Chemistry, Tokyo Gakugei University, Tokyo 184-8501, Japan
| | | |
Collapse
|
6
|
Chowdhury R, Dubey AK, Ghosh R. Synthesis of Functionalized Organosilicon Compounds/Distal Ketones via Ring-Opening Giese Addition of Cycloalkanols under Organophotocatalytic Conditions. J Org Chem 2024; 89:7187-7200. [PMID: 38669476 DOI: 10.1021/acs.joc.4c00600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Visible-light-induced organophotocatalyzed ring-opening followed by remote Giese addition of tertiary cycloalkanols with β-silylmethylene malonates has been developed under mild reaction conditions for the synthesis of organosilicon compounds, bearing a ketone group distally substituted with a silyl group with an additional dialkyl malonate functional handle in moderate to good yields (34-72%). The protocol also worked well with diverse Michael acceptors, such as alkylidene/benzylidene malonates, trifluoro methylidene malonate, benzylidene malononitrile, α-cyano-enone, and α-cyano vinyl sulfone, and delivered desired valuable distally functionalized ketones. To showcase the potential of the method, various synthetic transformations of the obtained product were also demonstrated.
Collapse
Affiliation(s)
- Raghunath Chowdhury
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Akhil K Dubey
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Rajib Ghosh
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| |
Collapse
|
7
|
Lal N, Shirsath SB, Singh P, Deepshikha, Shaikh AC. Allylsilane as a versatile handle in photoredox catalysis. Chem Commun (Camb) 2024; 60:4633-4647. [PMID: 38606528 DOI: 10.1039/d4cc00734d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Organosilanes have secured a special place in the synthetic world for several decades. However, among them, allylsilanes are a choice reagent for organic chemists to develop novel organic transformations. In recent years researchers have proved that visible-light photoredox catalysis has emerged as one of the most mild, sustainable, straightforward, and efficient strategies to construct simple to complex molecules with or without enantioselectivity. This review provides an in-depth analysis of recent advances and strategies employed in visible-light photoredox catalysis for allylsilane and its analogues for the development of various organic transformations. The review is divided into sections, each focused on a specific reactivity of allylsilane under light irradiation with C(sp2) center arene or alkene, C(sp2) center carbonyl, and C(sp3) center carbon functionality. In this review, we present optimization data, reaction scope, and mechanistic aspects to bring forward specific reactivity and selectivity trends of allylsilane in photoredox conditions.
Collapse
Affiliation(s)
- Nand Lal
- Department of Chemistry, Indian Institute of Technology, Ropar (IIT Ropar), Rupnagar, Punjab 140 001, India.
| | - Sanket B Shirsath
- Department of Chemistry, Indian Institute of Technology, Ropar (IIT Ropar), Rupnagar, Punjab 140 001, India.
| | - Puja Singh
- Department of Chemistry, Indian Institute of Technology, Ropar (IIT Ropar), Rupnagar, Punjab 140 001, India.
| | - Deepshikha
- Department of Chemistry, Indian Institute of Technology, Ropar (IIT Ropar), Rupnagar, Punjab 140 001, India.
| | - Aslam C Shaikh
- Department of Chemistry, Indian Institute of Technology, Ropar (IIT Ropar), Rupnagar, Punjab 140 001, India.
| |
Collapse
|
8
|
Li Z, Shi Z. Late-Stage Diversification of Phosphines by C-H Activation: A Robust Strategy for Ligand Design and Preparation. Acc Chem Res 2024; 57:1057-1072. [PMID: 38488874 DOI: 10.1021/acs.accounts.4c00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
ConspectusThe advent of the twenty-first century marked a golden era in the realm of synthetic chemistry, exemplified by groundbreaking advancements in the field of C-H activation, which is a concept that quickly transitioned from mere academic fascination to an essential element within the synthetic chemist's toolkit. This methodological breakthrough has given rise to a wealth of opportunities spanning a wide range of chemical disciplines. It has facilitated the late-stage diversification of elaborate organic frameworks, encompassing the spectrum from simple methane to complex polymers, thus refining the lead optimization process and easing the production of diverse molecular analogues. Among these strides forward, the development of phosphorus(III)-directed C-H activation stands out as an increasingly significant and inventive approach for the design and synthesis of ligands, substantially redefining the contours of synthetic methodology.Phosphines, renowned for their roles as ligands and organocatalysts, have become fundamentally important in modern organic chemistry. Their efficiency as ligands is significantly affected by coordination with transition metals, which is essential for their involvement in catalytic processes, influencing both the catalytic activity and the selectivity. Historically, the fabrication of phosphines predominantly relied on synthesis employing complex, multistep procedures. Addressing this limitation, our research has delved into ligand design and synthesis through innovative catalytic P(III)-directed C-H activation strategies. In this Account, we have explored a spectrum of procedures, including direct arylation using metal catalysis, and ventured further into domains such as C-H alkylation, alkenylation, aminocarbonylation, alkynylation, borylation, and silylation. These advances have enriched the field by providing efficient methods for the late-stage diversification of biaryl-type monophosphines as well as enabled the C-H activation of triphenylphosphine and its derivatives. Moreover, we have successfully constructed libraries of diverse axially chiral binaphthyl phosphine ligands, showcasing their potency in asymmetric catalysis. Through this Account, we aim to illuminate the exciting possibilities presented by P(III)-directed C-H activation in propelling the boundaries of organic synthesis. By highlighting our pioneering work, we hope to inspire further developments in this promising field of chemistry.
Collapse
Affiliation(s)
- Zexian Li
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| |
Collapse
|
9
|
Karad SN, Saito H, Shimokawa J, Yorimitsu H. Regioselective Anti-Silyllithiation of Propargylic Alcohols. J Org Chem 2024; 89:3677-3683. [PMID: 36342367 DOI: 10.1021/acs.joc.2c01795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Among the known hydrosilylation or carbosilylation conditions of alkynes, anti-addition of the two units across the triple bond is considered rare compared to the syn counterpart. For anti-silylative vicinal difunctionalizations, transition-metal catalysts, such as ruthenium or palladium complexes, are generally required. Accordingly, silyl alkali metals have not been employed for those anti-addition transformations. Here we demonstrate that silyllithiums can add across the triple bond of a series of propargylic alkoxides regioselectively in an anti-fashion. Upon treatment with a variety of electrophiles, the trisubstituted alkenyl lithium intermediates were transformed into highly functionalized β-silyl allylic alcohols with high regiocontrol, eventually providing tri- or tetrasubstituted alkenylsilanes stereoselectively. A classic trick for anti-addition with propargylic alkoxides has transformed anti-silylative functionalizations into a robust and reliable strategy.
Collapse
Affiliation(s)
- Somnath N Karad
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hayate Saito
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Jun Shimokawa
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| |
Collapse
|
10
|
Sun W, Hu MY, Lu ZS, Huang MY, Zhang XY, Zhu SF. Iron-Catalyzed Stereoconvergent 1,4-Hydrosilylation of Conjugated Dienes. Angew Chem Int Ed Engl 2023:e202315473. [PMID: 37934194 DOI: 10.1002/anie.202315473] [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: 10/13/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/08/2023]
Abstract
Stereoconvergent transformation of E/Z mixtures of olefins to products with a single steric configuration is of great practical importance but hard to achieve. Herein, we report an iron-catalyzed stereoconvergent 1,4-hydrosilylation reactions of E/Z mixtures of readily available conjugated dienes for the synthesis of Z-allylsilanes with high regioselectivity and exclusive stereoselectivity. Mechanistic studies suggest that the reactions most likely proceed through a two-electron redox mechanism. The stereoselectivity of the reactions is ultimately determined by the crowded reaction cavity of the α-diimine ligand-modified iron catalyst, which forces the conjugated diene to coordinate with the iron center in a cis conformation, which in turn results in generation of an anti-π-allyl iron intermediate. The mechanism of this stereoconvergent transformation differs from previously reported mechanisms of other related reactions involving radicals or metal-hydride species.
Collapse
Affiliation(s)
- Wei Sun
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Meng-Yang Hu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhan-Sheng Lu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Ming-Yao Huang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xin-Yu Zhang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Shou-Fei Zhu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| |
Collapse
|
11
|
Mörsdorf JM, Ballmann J. Coordination-Induced Radical Generation: Selective Hydrogen Atom Abstraction via Controlled Ti-C σ-Bond Homolysis. J Am Chem Soc 2023; 145:23452-23460. [PMID: 37861658 DOI: 10.1021/jacs.3c05748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
A method for the generation of transient alkyl radicals via homolytic Ti-C bond cleavage was developed by employing a tailor-made organotitanium half-cage complex. In contrast to established metal-mediated radical initiation protocols via thermal or photochemical M-C σ-bond homolysis, radical formation is triggered solely by coordination of a solvent molecule (thf) to a titanium(IV) center. During the reaction, the nonstabilized alkyl radical is formed along with a persistent titanium(III) metalloradical, thus taming the former transient radical (persistent radical effect). Radical coupling and hydrogen atom abstraction (HAT) reactions have been explored not only experimentally but also computationally and by means of kinetic analysis. Exploiting these findings led to the development of selective HAT transformations, for example, with 9,10-dihydroanthracene. Deuterium labeling studies using selectively deuterated alkyls and 9,10-dihydroanthracene-d4 confirmed a radical pathway, which was underpinned by developing a radical-radical cross-coupling reaction for transferring the alkyl radical to a stable Sn-centered radical. To set the stage for an application in organic synthesis, a 5-endo-trig radical cyclization based on our methodology was established, and a dihydroxylated sesquiterpene was thus prepared in high diastereomeric excess.
Collapse
Affiliation(s)
- Jean-Marc Mörsdorf
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, D-69120 Heidelberg, Germany
| | - Joachim Ballmann
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, D-69120 Heidelberg, Germany
| |
Collapse
|
12
|
Chindan B, Syam A, Mahendran H, Rasappan R. Synthesis of α-Vinyltrialkoxysilanes via Nickel-Mediated Cross-Electrophile Coupling Reactions. Org Lett 2023; 25:7751-7756. [PMID: 37844143 DOI: 10.1021/acs.orglett.3c03206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Vinyltrialkoxysilanes are indispensable for organic synthesis, particularly cross-coupling reactions. Hydrosilylation of alkynes inevitably yields α- and β-isomers of vinyltrialkoxysilanes even with complex ligands and catalysts, limiting its usage in organic synthesis. We report the synthesis of α-vinyltrialkoxysilanes via cross-electrophile C(sp2)-C(sp2) coupling of bromoalkenes. The method is quite compatible with functional groups under milder reaction conditions. The gram-scale synthesis of most substrates is impressive. The intermediacy of vinyl iodide and radical escape rebound path are supported by mechanistic studies.
Collapse
Affiliation(s)
- Bincy Chindan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Anagha Syam
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Hariharan Mahendran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| |
Collapse
|
13
|
Pérez Sevillano R, Ferreira F, Jackowski O. Transition-Metal-Free Synthesis of Enantioenriched Tertiary and Quaternary α-Chiral Allylsilanes. Chemistry 2023; 29:e202302227. [PMID: 37489288 DOI: 10.1002/chem.202302227] [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: 07/16/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/26/2023]
Abstract
Access to enantioenriched tertiary and quaternary α-chiral allysilanes without any transition-metal catalyst is reported. This was achieved by enantioselective allylic displacement of γ-silylated allylic bromides through Lewis base activation of Grignard reagents by a bidentate chiral NHC ligand. The process afforded both high γ-regio- and enantioselectivity and is compatible with a wide range of silyl groups on the substrates.
Collapse
Affiliation(s)
- Rubén Pérez Sevillano
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire IPCM, 4 place Jussieu, F-75005, Paris, France
| | - Franck Ferreira
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire IPCM, 4 place Jussieu, F-75005, Paris, France
| | - Olivier Jackowski
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire IPCM, 4 place Jussieu, F-75005, Paris, France
| |
Collapse
|
14
|
Kong Z, Hu W, Morken JP. 1,2-Diborylsilanes: Catalytic Enantioselective Synthesis and Site-Selective Cross-Coupling. ACS Catal 2023; 13:11522-11527. [PMID: 38469392 PMCID: PMC10927258 DOI: 10.1021/acscatal.3c01789] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
A Pt-catalyzed enantioselective hydrosilylation of (Z)-1,2-diborylethylene provides a 1,2-diboryl-1-silylalkane that can be used in catalytic cross-coupling reactions. Depending on the catalyst employed and the cross-coupling reaction conditions, the coupling can occur at either α or β relative to the silane center.
Collapse
Affiliation(s)
- Ziyin Kong
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Weipeng Hu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - James P Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|
15
|
Wang ZL, Li Q, Yang MW, Song ZX, Xiao ZY, Ma WW, Zhao JB, Xu YH. Regio- and enantioselective CuH-catalyzed 1,2- and 1,4-hydrosilylation of 1,3-enynes. Nat Commun 2023; 14:5048. [PMID: 37598226 PMCID: PMC10439940 DOI: 10.1038/s41467-023-40703-1] [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: 01/11/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023] Open
Abstract
We report a copper-catalyzed ligand-controlled selective 1,2- and 1,4-hydrosilylation of 1,3-enynes, which furnishes enantiomerically enriched propargyl- and 1,2-allenylsilane products in high yields with excellent enantioselectivities (up to 99% ee). This reaction proceeds under mild conditions, shows broad substrate scope for both 1,3-enynes and trihydrosilanes, and displays excellent regioselectivities. Mechanistic studies based on deuterium-labeling reactions and density functional theory (DFT) calculations suggest that allenylcopper is the dominant reactive intermediate under both 1,2- and 1,4-hydrosilylation conditions, and it undergoes metathesis with silanes via selective four-membered or six-membered transition state, depending on the nature of the ligand. The weak interactions between the ligands and the reacting partners are found to be the key controlling factor for the observed regioselectivity switch. The origin of high enantiocontrol in the 1,4-hydrosilylation is also revealed by high level DLPNO-CCSD(T) calculations.
Collapse
Affiliation(s)
- Zi-Lu Wang
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Qi Li
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Meng-Wei Yang
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Zhao-Xin Song
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Zhen-Yu Xiao
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Wei-Wei Ma
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Jin-Bo Zhao
- Faculty of Chemistry and Life Science, Changchun University of Technology, 130012, Changchun, P.R. China.
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China.
| |
Collapse
|
16
|
Shibata S, Amano K, Kojima T, Mori K. Lewis acid-catalyzed formal 1,3-aminomethyl migration. Chem Commun (Camb) 2023; 59:9976-9979. [PMID: 37503720 DOI: 10.1039/d3cc03059h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Here we report a Lewis acid-catalyzed 1,3-aminomethyl migration rection. When δ-amino acid derivatives were treated with a catalytic amount of Sc(OTf)3, 1,3-migration of the aminomethyl group proceeded smoothly to afford β-amino acid derivatives in moderate to good chemical yields. Detailed investigation suggested that this migration reaction proceeded through the fragmentation/recombination pathway.
Collapse
Affiliation(s)
- Suzuka Shibata
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology. 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Koutarou Amano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology. 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Tatsuhiro Kojima
- Department of Applied Chemistry, Kobe City College of Technology (KCCT) 8-3, Gakuen-Higashimachi, Nishi-ku, Kobe, 651-2194, Japan
| | - Keiji Mori
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology. 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| |
Collapse
|
17
|
Behera RR, Saha R, Kumar AA, Sethi S, Jana NC, Bagh B. Hydrosilylation of Terminal Alkynes Catalyzed by an Air-Stable Manganese-NHC Complex. J Org Chem 2023. [PMID: 37317486 DOI: 10.1021/acs.joc.3c00127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In recent years, catalysis with base metal manganese has received a significant amount of interest. Catalysis with manganese complexes having N-heterocyclic carbenes (NHCs) is relatively underdeveloped in comparison to the extensively investigated manganese catalysts possessing pincer ligands (particularly phosphine-based ligands). Herein, we describe the synthesis of two imidazolium salts decorated with picolyl arms (L1 and L2) as NHC precursors. Facile coordination of L1 and L2 with MnBr(CO)5 in the presence of a base resulted in the formation manganese(I)-NHC complexes (1 and 2) as an air-stable solid in good isolated yield. Single-crystal X-ray analysis revealed the structure of the cationic complexes [Mn(CO)3(NHC)][PF6] with tridentate N,C,N binding of the NHC ligand in a facile fashion. Along with a few known manganese(I) complexes, these Mn(I)-NHC complexes 1 and 2 were tested for the hydrosilylation of terminal alkynes. Complex 1 was proved to be an effective catalyst for the hydrosilylation of terminal alkynes with good selectivity toward the less thermodynamically stable β-(Z)-vinylsilanes. This method provided good regioselectivity (anti-Markovnikov addition) and stereoselectivity (β-(Z)-product). Experimental evidence suggested that the present hydrosilylation pathway involved an organometallic mechanism with manganese(I)-silyl species as a possible reactive intermediate.
Collapse
Affiliation(s)
- Rakesh R Behera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Ratnakar Saha
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Alamsaty Ashis Kumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Subrat Sethi
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Narayan Ch Jana
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Bidraha Bagh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| |
Collapse
|
18
|
Sivaramakrishna A, Pete S, Mandar Mhaskar C, Ramann H, Venkata Ramanaiah D, Arbaaz M, Niyaz M, Janardan S, Suman P. Role of hypercoordinated silicon(IV) complexes in activation of carbon–silicon bonds: An overview on utility in synthetic chemistry. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
19
|
Zhu BB, Zhang SS, Fu JG, Lin GQ, Feng CG. Palladium-catalyzed disilylation of ortho-halophenylethylenes enabled by 2-pyridone ligand. Chem Commun (Camb) 2023; 59:5922-5925. [PMID: 37171020 DOI: 10.1039/d3cc01452e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A palladium-catalyzed disilylation reaction applicable for a variety of non-, α-, or β-substituted and α,β-disubstituted ortho-halophenylethylenes has been developed. This reaction proceeds with high yields and very low catalyst loadings. The two C-Si bonds of the disilylated products could be well-differentiated chemoselectively in the reaction with various electrophiles.
Collapse
Affiliation(s)
- Bin-Bin Zhu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shu-Sheng Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jian-Guo Fu
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Guo-Qiang Lin
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Chen-Guo Feng
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
20
|
Zhang Y, Guo H, Wu Q, Bi X, Shi E, Xiao J. Stereoselective synthesis of ( E)-α,β-unsaturated esters: triethylamine-catalyzed allylic rearrangement of enol phosphates. RSC Adv 2023; 13:13511-13515. [PMID: 37181505 PMCID: PMC10173029 DOI: 10.1039/d3ra02430j] [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: 04/12/2023] [Accepted: 04/27/2023] [Indexed: 05/16/2023] Open
Abstract
α,β-Unsaturated esters are key structural motifs widely distributed in various biologically active molecules, and their Z/E-stereoselective synthesis has always been considered highly attractive in organic synthesis. Herein, we present a >99% (E)-stereoselective one-pot synthetic approach towards β-phosphoroxylated α,β-unsaturated esters via a mild trimethylamine-catalyzed 1,3-hydrogen migration of the corresponding unconjugated intermediates derived from the solvent-free Perkow reaction between low-cost 4-chloroacetoacetates and phosphites. Versatile β,β-disubstituted (E)-α,β-unsaturated esters were thus afforded with full (E)-stereoretentivity by cleavage of the phosphoenol linkage via Negishi cross-coupling. Moreover, a stereoretentive (E)-rich mixture of a α,β-unsaturated ester derived from 2-chloroacetoacetate was obtained and both isomers were easily afforded in one operation.
Collapse
Affiliation(s)
- Yulong Zhang
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Huichuang Guo
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Qian Wu
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Xiaojing Bi
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Enxue Shi
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| | - Junhua Xiao
- State Key Laboratory of NBC Protection for Civilian Beijing 102205 P. R. China
| |
Collapse
|
21
|
Li S, Tong WY, Zhou Q, Yu X, Shi JL, Li SS, Qu S, Wang J. Palladium-Catalyzed Oxidative Coupling of Dibenzosiloles with α-Diazo Esters: Formal Replacement of the Silyl Group with Carbenes. Organometallics 2023. [DOI: 10.1021/acs.organomet.3c00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Shichao Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Wen-Yan Tong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Qi Zhou
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Xiang Yu
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Jiang-Ling Shi
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Shu-Sen Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Shuanglin Qu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| |
Collapse
|
22
|
Liu T, Mao XR, Song S, Chen ZY, Wu Y, Xu LP, Wang P. Enantioselective Nickel-Catalyzed Hydrosilylation of 1,1-Disubstituted Allenes. Angew Chem Int Ed Engl 2023; 62:e202216878. [PMID: 36651564 DOI: 10.1002/anie.202216878] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/19/2023]
Abstract
Here, we report the first example of Ni-catalyzed asymmetric hydrosilylation of 1,1-disubstituted allenes with high level of regioselectivities and enantioselectivities. The key to achieve this stereoselective hydrosilylation reaction was the development of the SPSiOL-derived bisphosphite ligands (SPSiPO). This protocol features broad substrate scope, excellent functional group, and heterocycle tolerance, thus provides a versatile method for the construction of enantioenriched tertiary allylsilanes in a straightforward and atom-economic manner. DFT calculations were performed to reveal the reaction mechanism and the origins of the enantioselectivity.
Collapse
Affiliation(s)
- Tao Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Xin-Rui Mao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, P. R. China
| | - Shuo Song
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Zi-Yang Chen
- State Key Laboratory of Organometallic Chemistry, 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, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Li-Ping Xu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, P. R. China
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, P. R. China
- CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai, 200032, P. R. China
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| |
Collapse
|
23
|
Bulky NHC–Cobalt Complex-Catalyzed Highly Markovnikov-Selective Hydrosilylation of Alkynes. Catalysts 2023. [DOI: 10.3390/catal13030510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
The hydrosilylation of alkynes is one of the most attractive and, at the same time, most challenging catalytic transformations, usually demanding the use of noble transition metals. We describe a catalytic system, based on cobalt(0) complex and bulky N-heterocyclic carbene (NHC) ligands, permitting the highly effective hydrosilylation of a broad scope of alkynes and silanes. The application of bulky NHC ligands allowed a decrease in the amount of cobalt necessary for an effective reaction run to 2.5 mol% and provided excellent selectivity towards challenging α-vinylsilanes. The developed method tolerates a number of substituted aryl, alkyl, and silyl acetylenes. Moreover, it is suitable for both tertiary and secondary silanes. Our findings confirm that steric hindrance around the metal center can effectively increase the activity of a catalyst and ensure better selectivity than those of analogous complexes bearing smaller ligands.
Collapse
|
24
|
Stankevich KS, Cook MJ. The Hosomi-Sakurai allylation in carbocyclization reactions. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
|
25
|
Lam RH, Keaveney ST, Messerle BA, Pernik I. Bimetallic Rhodium Complexes: Precatalyst Activation-Triggered Bimetallic Enhancement for the Hydrosilylation Transformation. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Raphael H. Lam
- School of Natural Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Sinead T. Keaveney
- School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Barbara A. Messerle
- School of Natural Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Indrek Pernik
- School of Natural Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| |
Collapse
|
26
|
Jiao J, Yang W, Wang X. α-Aminocarbene-Mediated Si-H Insertion: Deoxygenative Silylation of Aromatic Amides with Silanes. J Org Chem 2023; 88:594-601. [PMID: 36521058 DOI: 10.1021/acs.joc.2c02649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
While metal carbene-mediated Si-H insertion reactions have become a powerful strategy to build new C-Si bonds, the utilization of α-aminocarbene intermediates generated from readily available precursors in the Si-H insertion reaction remains a longstanding challenge. Herein, we develop a practical and general strategy to synthesize α-aminosilanes through a deoxygenative cross-coupling of amides and silanes mediated by Sm/SmI2. Given the simplicity and versatility, this methodology represents a fascinating example for the effective utilization of inert amides as α-aminocarbene precursors in organic synthesis.
Collapse
Affiliation(s)
- Jiwen Jiao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Wenhan Yang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Xiaoming Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
| |
Collapse
|
27
|
Ozawa Y, Koriyama H, Shiratori Y, Ito H. Copper(I)-Catalyzed Regio- and Stereoselective Silaboration of Terminal Allenes. ACS ORGANIC & INORGANIC AU 2023; 3:104-108. [PMID: 37035279 PMCID: PMC10080722 DOI: 10.1021/acsorginorgau.2c00057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023]
Abstract
Organic compounds bearing both silyl and boryl groups are important building blocks in organic synthesis because of the adequate reactivity of the silyl and boryl groups and high stereospecificity in their derivatization reactions. The difference in reactivity between the silyl and boryl groups enables stepwise derivatization of these groups to afford complex molecules. Here, we report the copper(I)-catalyzed silaboration of terminal allenes to produce multisubstituted allylic boronates embedded with an alkenyl silane structure. The reaction can proceed with a variety of allenes and silylboranes. Furthermore, the silyl and boryl groups were successfully converted into other functional groups, while retaining the stereochemistry of the alkene moiety.
Collapse
Affiliation(s)
- Yu Ozawa
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Hisao Koriyama
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yuma Shiratori
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| |
Collapse
|
28
|
Cheng Z, Li M, Zhang XY, Sun Y, Yu QL, Zhang XH, Lu Z. Cobalt-Catalyzed Regiodivergent Double Hydrosilylation of Arylacetylenes. Angew Chem Int Ed Engl 2023; 62:e202215029. [PMID: 36330602 DOI: 10.1002/anie.202215029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Indexed: 11/06/2022]
Abstract
Double hydrosilylation of alkynes represents a straightforward method to synthesize bis(silane)s, yet it is challenging if α-substituted vinylsilanes act as the intermediates. Here, a cobalt-catalyzed regiodivergent double hydrosilylation of arylacetylenes is reported for the first time involving this challenge, accessing both vicinal and geminal bis(silane)s with exclusive regioselectivity. Various novel bis(silane)s containing Si-H bonds can be easily obtained. The gram-scale reactions could be performed smoothly. Preliminarily mechanistic studies demonstrated that the reactions were initiated by cobalt-catalyzed α-hydrosilylation of alkynes, followed by cobalt-catalyzed β-hydrosilylation of the α-vinylsilanes to deliver vicinal bis(silane)s, or hydride-catalyzed α-hydrosilylation to give geminal ones. Notably, these bis(silane)s can be used for the synthesis of high-refractive-index polymers (nd up to 1.83), demonstrating great potential utility in optical materials.
Collapse
Affiliation(s)
- Zhaoyang Cheng
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Minghua Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Xu-Yang Zhang
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yue Sun
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qing-Lei Yu
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xing-Hong Zhang
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.,Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.,Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China.,College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China.,Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 310058, China
| |
Collapse
|
29
|
Zhang WW, Li BJ. Enantioselective Hydrosilylation of β,β-Disubstituted Enamides to Construct α-Aminosilanes with Vicinal Stereocenters. Angew Chem Int Ed Engl 2023; 62:e202214534. [PMID: 36344453 DOI: 10.1002/anie.202214534] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Indexed: 11/09/2022]
Abstract
Despite the advances in the area of catalytic alkene hydrosilylation, the enantioselective hydrosilylation of alkenes bearing a heteroatom substituent is scarce. Here we report a rhodium-catalyzed hydrosilylation of β,β-disubstituted enamides to directly afford valuable α-aminosilanes in a highly regio-, diastereo-, and enantioselective manner. Stereodivergent synthesis could be achieved by regulating substrate geometry and ligand configuration to generate all the possible stereoisomers in high enantio-purity.
Collapse
Affiliation(s)
- Wen-Wen Zhang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China.,Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| |
Collapse
|
30
|
Yang C, Chen J, Li X, Meng L, Wang K, Sun W, Fan B. Difluoroallylation of Silanes under Photoirradiation. ACTA CHIMICA SINICA 2023. [DOI: 10.6023/a22110454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
|
31
|
Alleman C, Gadais C, Legentil L, Porée FH. Strategies to access the [5-8] bicyclic core encountered in the sesquiterpene, diterpene and sesterterpene series. Beilstein J Org Chem 2023; 19:245-281. [PMID: 36895430 PMCID: PMC9989678 DOI: 10.3762/bjoc.19.23] [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: 12/12/2022] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
Terpene compounds probably represent the most diversified class of secondary metabolites. Some classes of terpenes, mainly diterpenes (C20) and sesterterpenes (C25) and to a lesser extent sesquiterpenes (C15), share a common bicyclo[3.6.0]undecane core which is characterized by the presence of a cyclooctane ring fused to a cyclopentane ring, i.e., a [5-8] bicyclic ring system. This review focuses on the different strategies elaborated to construct this [5-8] bicyclic ring system and their application in the total synthesis of terpenes over the last two decades. The overall approaches involve the construction of the 8-membered ring from an appropriate cyclopentane precursor. The proposed strategies include metathesis, Nozaki-Hiyama-Kishi (NHK) cyclization, Pd-mediated cyclization, radical cyclization, Pauson-Khand reaction, Lewis acid-promoted cyclization, rearrangement, cycloaddition and biocatalysis.
Collapse
Affiliation(s)
- Cécile Alleman
- Université Rennes, Faculté de Pharmacie, CNRS ISCR UMR 6226, F-35000 Rennes, France
| | - Charlène Gadais
- Université Rennes, Faculté de Pharmacie, CNRS ISCR UMR 6226, F-35000 Rennes, France
| | - Laurent Legentil
- Université Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France
| | | |
Collapse
|
32
|
Han B, Li W, Chen S, Zhang Z, Zhao X, Zhang Y, Zhu L. Recent Advances in Copper-Catalyzed Silyl Addition of Unsaturated Compounds. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202207043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
|
33
|
Ye T, Zhao J, Zheng WX, Zhang J, Wang Z, Zhang FL. Synthesis of structurally diverse silicon-incorporated indolines via silyl radical-triggered radical cascade reactions. Org Chem Front 2023. [DOI: 10.1039/d3qo00153a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Structurally diverse silicon-incorporated indolines were synthesized via a silyl radical-triggered radical addition–translocation–cyclization (RATC) process.
Collapse
|
34
|
Li Y, Zhang H, Li J, Shen D, Liu Z. Ru-Catalyzed Synthesis of α,β-Unsaturated Acylsilanes and Its Applications in C–N Bond Formation. Org Lett 2022; 24:9163-9167. [DOI: 10.1021/acs.orglett.2c04024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yongli Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hao Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jiawei Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Dalong Shen
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Zhenxing Liu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| |
Collapse
|
35
|
Theoretical study on the mechanism of the carbonylation cyclization of 1,5-diynes with hydrosilanes. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
36
|
Zhang Y, Chen J, Huang H. Radical Brook Rearrangements: Concept and Recent Developments. Angew Chem Int Ed Engl 2022; 61:e202205671. [DOI: 10.1002/anie.202205671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Ying Zhang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Jun‐Jie Chen
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Huan‐Ming Huang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| |
Collapse
|
37
|
LaPorte AJ, Shi Y, Hein JE, Burke MD. Stereospecific Csp 3 Suzuki–Miyaura Cross-Coupling That Evades β-Oxygen Elimination. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Antonio J. LaPorte
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Yao Shi
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jason E. Hein
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Martin D. Burke
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Carle Illinois College of Medicine, University of Illinois, Urbana, Illinois 61801, United States
- Department of Biochemistry, University of Illinois, Urbana, Illinois 61801, United States
- Arnold and Mabel Beckman Institute, University of Illinois, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, Illinois 61801, United States
| |
Collapse
|
38
|
de la Fuente-Olvera AA, Ruiz-Mendoza FJ, Vasquez-Perez JM, Melendez-Rodriguez M, Alvarez-Hernandez A, Salazar-Pereda V, Mendoza-Espinosa D. <p class="Title1"><span lang="DE">Rhodium(I) complexes bearing hydroxyl‐functionalized 1,2,3‐triazolylidenes and their catalytic application <o:p></o:p></span></p>. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | | | | | | | - Daniel Mendoza-Espinosa
- Universidad Autonoma del Estado de Hidalgo Chemsitry Carretera Pachuca-TulancingoKm 4.5Mineral de la Reforma 42090 Mineral de la Reforma MEXICO
| |
Collapse
|
39
|
Copper-catalyzed regio- and stereo-selective hydrosilylation of terminal allenes to access (E)-allylsilanes. Nat Commun 2022; 13:3691. [PMID: 35760931 PMCID: PMC9237096 DOI: 10.1038/s41467-022-31458-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/15/2022] [Indexed: 12/02/2022] Open
Abstract
Regioselectivity and stereoselectivity control in hydrosilylation of terminal allenes is challeging. Although the selective synthesis of vinylsilanes, branched allylsilanes or linear (Z)-allylsilanes have been achieved, transition-metal catalyzed hydrosilylation of terminal allenes to access (E)-allylsilane is difficult. Herein, we report a copper-catalyzed selective hydrosilylation reaction of terminal allenes to access (E)-allylsilanes under mild reaction conditions. The reaction shows broad substrate scope, representing an efficient method to prepare trisubstituted (E)-allylsilanes through hydrosilylation reaction of allenes and can also be applied in the synthesis of disubstituted (E)-allylsilanes. The mechanism study reveals that the E-selectivity is kinetically controlled by the catalyst but not by the thermodynamically isomerization of the (Z)-isomer. Regio- and stereoselective transition-metal catalysed hydrosilylation of terminal allenes to access (E)-allylsilanes are challenging organic transformations. Herein, the authors synthesize (E)-allylsilanes via copper-catalyzed hydrosilylation of terminal allenes.
Collapse
|
40
|
Zhang Y, Chen JJ, Huang HM. Radical Brook Rearrangement: Concept and Recent Developments. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ying Zhang
- ShanghaiTech University School of Physical Science and Technology CHINA
| | - Jun-Jie Chen
- ShanghaiTech University School of Physical Science and Technology CHINA
| | - Huan-Ming Huang
- ShanghaiTech University School of Physical Science and Technology 393 Middle Huaxia RoadPudong 201210 Shanghai CHINA
| |
Collapse
|
41
|
ghosh SK. β‐Silylmethylene malonate as versatile reagent in organic synthesis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- sunil kumar ghosh
- Bhabha Atomic Research Centre Bio-Organic Division Trombay 400085 Mumbai INDIA
| |
Collapse
|
42
|
Skrodzki M, Ortega Garrido V, Csáky AG, Pawluć P. Searching for Highly Active Cobalt Catalysts Bearing Schiff Base Ligands for Markovnikov-Selective Hydrosilylation of Alkynes with Tertiary Silanes. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.002] [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]
|
43
|
Pradhan TR, Paudel M, Feoktistova T, Cheong PHY, Park JK. Silaborative Assembly of Allenamides and Alkynes: Highly Regio- and Stereocontrolled Access to Bi- or Trimetallic Skipped Dienes. Angew Chem Int Ed Engl 2022; 61:e202116154. [PMID: 35142019 DOI: 10.1002/anie.202116154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Indexed: 12/16/2022]
Abstract
A highly stereo- and regiocontrolled multicomponent approach to skipped 1,4-dienes decorated with one boryl and two silyl functionalities is described. This Pd-catalyzed atom-economical union of allenamides, alkynes, and Me2 PhSiBpin (or Et3 SiBpin) proceeds without the use of phosphine ligands, instead relying on chelation through the internal amide group of the allenamide sulfonyl. A variety of alkynes, including those derived from complex bioactive molecules, can be efficiently coupled with allenamides and Me2 PhSiBpin in good yields and with excellent selectivity. The synthetic potential was demonstrated through multiple valuable chemoselective transformations, establishing new disconnections for functionalized dienes. Density functional theory calculations revealed that the reaction first proceeded through borylation of the allenamide, followed by silylation of the alkyne and then reductive elimination, which convergently assemble the skipped 1,4-diene.
Collapse
Affiliation(s)
- Tapas R Pradhan
- Department of Chemistry and Institution for Functional Materials, Pusan National University, Busan, 46241, Republic of Korea
| | - Mukti Paudel
- Department of Chemistry and Institution for Functional Materials, Pusan National University, Busan, 46241, Republic of Korea
| | | | | | - Jin Kyoon Park
- Department of Chemistry and Institution for Functional Materials, Pusan National University, Busan, 46241, Republic of Korea
| |
Collapse
|
44
|
Qiao L, Zhang AA, Chen J, Li GW, Gao YY, Fan B, Liu L. Palladium-Catalyzed Disilylation of 2-Bromoarylferrocenes: An Efficient Approach to 1-Trimethylsilyl-2-(2-trimethylsilylaryl)ferrocenes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
45
|
Lu W, Zhao Y, Meng F. Cobalt-Catalyzed Sequential Site- and Stereoselective Hydrosilylation of 1,3- and 1,4-Enynes. J Am Chem Soc 2022; 144:5233-5240. [PMID: 35298144 DOI: 10.1021/jacs.2c00288] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Catalytic sequential hydrosilylation of 1,3-enynes and 1,4-enynes promoted by cobalt complexes derived from bisphosphines are presented. Site- and stereoselective Si-H addition of primary silanes to 1,3-enynes followed by sequential intramolecular diastereo- and enantioselective Si-H addition afforded enantioenriched cyclic alkenylsilanes with simultaneous construction of a carbon-stereogenic center and a silicon-stereogenic center. Reactions of 1,4-enynes proceeded through sequential isomerization of the alkene moiety followed by site- and stereoselective hydrosilylation. A wide range of alkenylsilanes were afforded in high efficiency and selectivity. Functionalization of the enantioenriched silanes containing a stereogenic center at silicon delivered a variety of chiral building blocks that are otherwise difficult to access.
Collapse
Affiliation(s)
- Wenxin Lu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, China, 200032
| | - Yongmei Zhao
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing, China, 102249
| | - Fanke Meng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, China, 200032
| |
Collapse
|
46
|
Pradhan TR, Paudel M, Feoktistova T, Cheong PH, Park JK. Silaborative Assembly of Allenamides and Alkynes: Highly Regio‐ and Stereocontrolled Access to Bi‐ or Trimetallic Skipped Dienes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tapas R. Pradhan
- Department of Chemistry and Institution for Functional Materials Pusan National University Busan 46241 Republic of Korea
| | - Mukti Paudel
- Department of Chemistry and Institution for Functional Materials Pusan National University Busan 46241 Republic of Korea
| | | | | | - Jin Kyoon Park
- Department of Chemistry and Institution for Functional Materials Pusan National University Busan 46241 Republic of Korea
| |
Collapse
|
47
|
Guo R, Sang J, Xiao H, Li J, Zhang G. Development of Novel
Phosphino‐Oxazoline
Ligands and Their Application in Asymmetric Alkynlylation of Benzylic Halides. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200074] [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)
- Rui Guo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
| | - Jiale Sang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
| | - Haijing Xiao
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
| | - Junxia Li
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
| |
Collapse
|
48
|
Ohji T, Ohnishi A, Ogasawara M. Application of Polysaccharide-Based Chiral High-Performance Liquid Chromatography Columns for the Separation of Regio-, E/ Z-, and Enantio-Isomeric Mixtures of Allylic Compounds. ACS OMEGA 2022; 7:5146-5153. [PMID: 35187330 PMCID: PMC8851445 DOI: 10.1021/acsomega.1c06187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
Daicel Chiralpak IA, IB, and IC, which are the polysaccharide-based chiral stationary phase (CSP) columns for high-performance liquid chromatography (HPLC), were applied in the separation of the non-enantiomeric isomeric mixtures obtained by the various allylation reactions and were highly effective in separating the regio- and (E)/(Z)-isomers in the allylation products. Due to the close structural similarity of the isomeric allylic compounds in the reaction mixtures, separations of the isomers are laborious and could not be accomplished by the conventional methods such as silica gel column chromatography, silica gel HPLC, preparative GPC, distillation, and so forth. This study has shown potential advantages of using the polysaccharide-based CSP columns in the separation of not only enantiomeric but also non-enantiomeric isomeric mixtures.
Collapse
Affiliation(s)
- Takehito Ohji
- Department
of Natural Science, Graduate School of Science and Technology and
Research Cluster on “Innovative Chemical Sensing”, Tokushima University, Tokushima 770-8506, Japan
| | - Atsushi Ohnishi
- Daicel
Corporation, CPI Company, Analytical Tools
BU, Research & Development Center, Arai 944-8550, Japan
| | - Masamichi Ogasawara
- Department
of Natural Science, Graduate School of Science and Technology and
Research Cluster on “Innovative Chemical Sensing”, Tokushima University, Tokushima 770-8506, Japan
- Tokushima
International Science Institute, Tokushima
University, Tokushima 770-8501, Japan
| |
Collapse
|
49
|
Shamna S, Fairoosa J, Afsina CMA, Anilkumar G. Palladium-catalysed hydrosilylation of unsaturated compounds. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
50
|
Murtaza A, Qamar MA, Saleem K, Hardwick T, Zia Ul Haq, Shirinfar B, Ahmed N. Renewable Electricity Enables Green Routes to Fine Chemicals and Pharmaceuticals. CHEM REC 2022; 22:e202100296. [PMID: 35103382 DOI: 10.1002/tcr.202100296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 12/29/2022]
Abstract
Syntheses of chemicals using renewable electricity and when generating high atom economies are considered green and sustainable processes. In the present state of affairs, electrochemical manufacturing of fine chemicals and pharmaceuticals is not as common place as it could be and therefore, merits more attention. There is also a need to turn attention toward the electrochemical synthesis of valuable chemicals from recyclable greenhouse gases that can accelerate the process of circular economy. CO2 emissions are the major contributor to human-induced global warming. CO2 conversion into chemicals is a valuable application of its utilisation and will contribute to circular economy while maintaining environmental sustainability. Herein, we present an overview of electro-carboxylation, including mechanistic aspects, which forms carboxylic acids using molecular carbon dioxide. We also discuss atom economies of electrochemical fluorination, methoxylation and amide formation reactions.
Collapse
Affiliation(s)
- Ayesha Murtaza
- Department of Chemistry, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, 64200, Pakistan
| | - Muhammad Awais Qamar
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, Gansu, China
| | - Kaynat Saleem
- Department of Chemistry, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, 64200, Pakistan
| | - Tomas Hardwick
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.,National Graphene Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Zia Ul Haq
- Chemical Engineering department, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, 64200, Pakistan
| | | | - Nisar Ahmed
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| |
Collapse
|