1
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Sun D, Rajeshkumar T, Li Y, Xu J, Chen R, Wan Z, Lv Z, Maron L, Chen YH. Lanthanum-Catalyzed Stereospecific Cross-Coupling of Propargylic Substrates with Grignard Reagents. Org Lett 2023; 25:6730-6735. [PMID: 37671845 DOI: 10.1021/acs.orglett.3c02600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
Transition-metal-catalyzed cross-coupling of propargylic electrophiles and Grignard reagents provides densely functionalized products that are extremely useful synthetic intermediates. However, examples of conversion of propargylic derivatives to form propargyl compounds remain limited due to the challenging regioselectivity. We use LaCl3·2LiCl to catalyze propargylation of Grignard reagents in the absence of ligand in high regioselectivity and stereospecificity. The approach shows a wide substrate scope using alkyl or (hetero)aryl Grignard reagents and alkynyl electrophiles with different leaving groups. Our protocol was further applied for the formal synthesis of frondosin B. It is worth exploring methodologies utilizing the naturally abundant and relatively nontoxic lanthanum catalysts.
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Affiliation(s)
- Dandan Sun
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Thayalan Rajeshkumar
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Yifan Li
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Jiaxin Xu
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Runkai Chen
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Zhaohua Wan
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Zongchao Lv
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
- CMC Pharmaceutical Research Center, Wuhan RS Pharmaceutical Co., Ltd., Wuhan 430073, China
| | - Laurent Maron
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Yi-Hung Chen
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, People's Republic of China
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2
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Wu K, Wu C, Jia XY, Zhou L, Li QH. Highly selective cross-coupling reactions of 1,1-dibromoethylenes with alkynylaluminums for the synthesis of aryl substituted conjugated enediynes and unsymmetrical 1,3-diynes. RSC Adv 2022; 12:13314-13318. [PMID: 35520111 PMCID: PMC9062886 DOI: 10.1039/d2ra02127g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/25/2022] [Indexed: 11/21/2022] Open
Abstract
A highly efficient method for the synthesis of aryl substituted conjugated enediynes and unsymmetrical 1,3-diynes via selective cross-coupling reactions of 1,1-dibromoethylenes with alkynylaluminums using the Pd(OAc)2-DPPE and Pd2(dba)3-TFP complexes as catalysts, respectively, has been successfully developed. Though the alkyl substituted conjugated enediynes and unsymmetrical 1,3-diynes were not obtained, this case is also remarkable as the same starting materials could selectively produce either aryl substituted conjugated enediynes or unsymmetrical 1,3-diynes in moderate to excellent yields (up to 99%) in the different Pd-phosphine catalytic systems.
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Affiliation(s)
- Kun Wu
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Chuan Wu
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Xiao-Ying Jia
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Lin Zhou
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Qing-Han Li
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, College of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
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3
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Luo RQ, Guo SP, Xiao HL, Li QH. Cross-coupling reaction of organoalane reagents with 2-mercaptobenzo-5-membered heterocycles for efficient synthesis of benzo-5-membered heterocycle sulfides. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Ghorai S, Lee D. Selectivity for Alkynyl or Allenyl Imidamides and Imidates in Copper-Catalyzed Reactions of Terminal 1,3-Diynes and Azides. Org Lett 2021; 23:697-701. [PMID: 33443441 DOI: 10.1021/acs.orglett.0c03861] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Copper-catalyzed reactions of terminal 1,3-diynes with electron-deficient azides to generate either 3-alkynyl or 2,3-dienyl imidamides and imidates are described. The selectivity depends on the diyne substituents and the nucleophile that reacts with the ketenimide intermediate generated from the corresponding triazole precursor. Reactions of 1,3-diynes containing a propargylic acetate afford [3]cumulenyl imidamides, while reactions using methanol as the trapping agent selectively generate 2,3-dienyl imidates. Five-membered heterocycles were obtained from 1,3-diynes containing a homopropargylic hydroxyl or amine substituent.
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Affiliation(s)
- Sourav Ghorai
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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5
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Shen J, Beale K, Amura I, Emanuelsson EAC. Ligand and Solvent Selection for Enhanced Separation of Palladium Catalysts by Organic Solvent Nanofiltration. Front Chem 2020; 8:375. [PMID: 32432086 PMCID: PMC7216237 DOI: 10.3389/fchem.2020.00375] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/09/2020] [Indexed: 11/20/2022] Open
Abstract
Organic solvent nanofiltration (OSN) has been widely applied to separate and recycle homogeneous catalysts, but the influence of ligand and solvent selection on the performance of OSN is not fully understood. Here we prepared four palladium (Pd) catalysts by combining palladium acetate with four ligands of different molecular weights. Morphological and functional properties of the Pd catalysts were characterized by TEM, FTIR, and NMR. OSN experiments were conducted in a lab-scale dead-end filtration rig. Two commercial OSN membranes, PuraMem S600 (PS600) and DuraMem 500 (D500), were used to separate the Pd catalysts from different organic solvents (toluene, isopropanol, butanol/water, and methanol) that are specified to be compatible with, respectively. For both membranes, the pure solvent permeance was positively related to the degree of membrane swelling induced by the solvent. The solvent permeance decreased significantly after the addition of a solute, as a result of membrane fouling and concentration polarization. For the PS600 membrane, the Pd rejection in any solvent was closely correlated to the molecular weight of the ligand, which agrees with the pore-flow model. For the D500 membrane, on the other hand, there was no conclusive link between the Pd rejection and the type of ligand. The one-way analysis of variance (ANOVA) confirmed that the separation processes in PS600 and D500 membranes were controlled by different transport models. The findings shed light on the selection of ligand and solvent in OSN in order to enhance the separation of homogeneous catalysts.
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Affiliation(s)
- Junjie Shen
- Centre for Advanced Separations Engineering, University of Bath, Bath, United Kingdom.,Department of Chemical Engineering, University of Bath, Bath, United Kingdom
| | - Kai Beale
- Department of Chemical Engineering, University of Bath, Bath, United Kingdom
| | - Ida Amura
- Centre for Advanced Separations Engineering, University of Bath, Bath, United Kingdom.,Department of Chemical Engineering, University of Bath, Bath, United Kingdom
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6
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Nickel-catalyzed cross-coupling of organoaluminum reagents with alkynylhalides for the synthesis of symmetrical and unsymmetrical conjugated 1,3-diynes derivatives. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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7
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Liu Z, Yang C, Xue Q, Zhao M, Shan C, Xu Y, Loh T. Copper‐Catalyzed Asymmetric Silylation of Propargyl Dichlorides: Access to Enantioenriched Functionalized Allenylsilanes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Zheng‐Li Liu
- Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Chao Yang
- Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Qi‐Yan Xue
- Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Meng Zhao
- Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Cui‐Cui Shan
- Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Yun‐He Xu
- Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Teck‐Peng Loh
- Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 637616 Singapore Singapore
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8
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Liu ZL, Yang C, Xue QY, Zhao M, Shan CC, Xu YH, Loh TP. Copper-Catalyzed Asymmetric Silylation of Propargyl Dichlorides: Access to Enantioenriched Functionalized Allenylsilanes. Angew Chem Int Ed Engl 2019; 58:16538-16542. [PMID: 31532868 PMCID: PMC6899605 DOI: 10.1002/anie.201908343] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/27/2019] [Indexed: 02/04/2023]
Abstract
A copper‐catalyzed silylation of propargyl dichlorides was developed to access chloro‐substituted allenylsilanes under mild reaction conditions. Moreover, enantioenriched chloro‐substituted allenylsilanes can be synthesized in moderate to high yields and good enantioselectivities with this protocol.
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Affiliation(s)
- Zheng-Li Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Chao Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Qi-Yan Xue
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Meng Zhao
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Cui-Cui Shan
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Teck-Peng Loh
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637616, Singapore, Singapore
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9
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Qin A, Zhu G, Chen Q, Qian H, Ma S. Palladium‐Catalyzed Desulfitative Cross‐Coupling Reaction of Sodium Sulfinates with Propargylic Carbonates. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Anni Qin
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Guirong Zhu
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Qin Chen
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic ChemistryChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 People's Republic of China
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10
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Veltri L, Amuso R, Cuocci C, Vitale P, Gabriele B. Palladium-Catalyzed Cyclocarbonylation Approach to Thiadiazafluorenones: A Correction. J Org Chem 2019; 84:8743-8749. [DOI: 10.1021/acs.joc.9b01043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucia Veltri
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036 Arcavacata di Rende (CS), Italy
| | - Roberta Amuso
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036 Arcavacata di Rende (CS), Italy
| | - Corrado Cuocci
- Institute of Crystallography (CNR), Via Amendola 122/O, 70124 Bari, Italy
| | - Paola Vitale
- Department of Pharmacy−Pharmaceutical Sciences, University of Bari “Aldo Moro”, Via E. Orabona 4, 70125 Bari, Italy
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036 Arcavacata di Rende (CS), Italy
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11
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Yao Y, Zhu G, Chen Q, Qian H, Ma S. Efficient synthesis of tetrasubstituted 2,3-allenoates and preliminary studies on bioactivities. Org Chem Front 2019. [DOI: 10.1039/c8qo01202d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A general and highly efficient straightforward protocol for the preparation of tetrasubstituted 2,3-allenoates through a palladium-catalyzed coupling reaction of 3-alkoxycarbonyl propargylic carbonates and boronic acids with commercially available tri(o-tolyl)phosphine as a ligand has been developed.
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Affiliation(s)
- Yuan Yao
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Guirong Zhu
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Qin Chen
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
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12
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Wu P, Jia M, Ma S. Pd-Catalyzed coupling reaction of cyclobutanols with propargylic carbonates. Org Chem Front 2019. [DOI: 10.1039/c9qo00192a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Pd-Catalyzed ring opening coupling reaction of cyclobutanols with propargylic carbonates afforded δ-allenyl ketones efficiently.
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Affiliation(s)
- Penglin Wu
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Minqiang Jia
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
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13
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Palladium-catalyzed, ligand-free S N 2’ substitution reactions of organoaluminum with propargyl acetates for the synthesis of multi-substituted allenes. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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14
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Domingo-Legarda P, Soler-Yanes R, Quirós-López MT, Buñuel E, Cárdenas DJ. Iron-Catalyzed Coupling of Propargyl Bromides and Alkyl Grignard Reagents. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800849] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Pablo Domingo-Legarda
- Department of Organic Chemistry; Facultad de Ciencias; Universidad Autónoma de Madrid; Institute for Advanced Research in Chemical Sciences (IAdChem); Campus de Cantoblanco 28049 Madrid Spain
| | - Rita Soler-Yanes
- Department of Organic Chemistry; Facultad de Ciencias; Universidad Autónoma de Madrid; Institute for Advanced Research in Chemical Sciences (IAdChem); Campus de Cantoblanco 28049 Madrid Spain
| | - M. Teresa Quirós-López
- Department of Organic Chemistry; Facultad de Ciencias; Universidad Autónoma de Madrid; Institute for Advanced Research in Chemical Sciences (IAdChem); Campus de Cantoblanco 28049 Madrid Spain
| | - Elena Buñuel
- Department of Organic Chemistry; Facultad de Ciencias; Universidad Autónoma de Madrid; Institute for Advanced Research in Chemical Sciences (IAdChem); Campus de Cantoblanco 28049 Madrid Spain
| | - Diego J. Cárdenas
- Department of Organic Chemistry; Facultad de Ciencias; Universidad Autónoma de Madrid; Institute for Advanced Research in Chemical Sciences (IAdChem); Campus de Cantoblanco 28049 Madrid Spain
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15
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Zhao T, Piccardi R, Micouin L. Rapid and Effective Synthesis of α-Acyloxy-α-alkynyltrimethylsilanes. Org Lett 2018; 20:5015-5018. [PMID: 30091611 DOI: 10.1021/acs.orglett.8b02165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
α-Alkynyl-α'-trimethylsilylhydrazones are readily oxidized into diazo compounds under simple experimental conditions. These stable diazo species can in turn react with a range of carboxylic acids via a protonation-nucleophilic substitution sequence, leading to valuable α-acyloxy-α-alkynyltrimethylsilanes. This procedure avoids the delicate preparation and manipulation of α-hydroxypropargyltrimethylsilanes.
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Affiliation(s)
- Tuan Zhao
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR 8601 CNRS-Université Paris Descartes, Faculté des Sciences Fondamentales et Biomédicales , 45 Rue des Saints-Pères , 75006 Paris , France
| | - Riccardo Piccardi
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR 8601 CNRS-Université Paris Descartes, Faculté des Sciences Fondamentales et Biomédicales , 45 Rue des Saints-Pères , 75006 Paris , France
| | - Laurent Micouin
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR 8601 CNRS-Université Paris Descartes, Faculté des Sciences Fondamentales et Biomédicales , 45 Rue des Saints-Pères , 75006 Paris , France
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16
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Shao XB, Zhang Z, Li QH, Zhao ZG. Synthesis of multi-substituted allenes from organoalane reagents and propargyl esters by using a nickel catalyst. Org Biomol Chem 2018; 16:4797-4806. [PMID: 29915845 DOI: 10.1039/c8ob00781k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient and simple route for the synthesis of multi-substituted allenes has been developed by a nickel catalyzed SN2' substitution reaction of propargyl esters with organic aluminium reagents under mild conditions, which gave the corresponding multi-substituted allenes in good to excellent yields (up to 92%) and high selectivities (up to 99%) at 60 °C for 6 h in THF. Aryls bearing electron-donating or electron-withdrawing groups in propargyl esters gave products in good yields. In addition, the multi-substituted allenes bearing a thienyl or a pyridyl group were obtained in 95-97% selectivities with isolated yields of 72-83%. Furthermore, the SN2' substitution reaction worked efficiently with propargyl carbonate compounds as well. On the basis of the experimental results, a possible catalytic cycle has been proposed.
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Affiliation(s)
- Xue Bei Shao
- College of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu 610041, P. R. China.
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17
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Sharma BM, Rathod J, Gonnade RG, Kumar P. Harnessing Nucleophilicity of Allenol Ester with p-Quinone Methides via Gold Catalysis: Application to the Synthesis of Diarylmethine-Substituted Enones. J Org Chem 2018; 83:9353-9363. [DOI: 10.1021/acs.joc.8b01294] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brijesh M. Sharma
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Jayant Rathod
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Rajesh G. Gonnade
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Pradeep Kumar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
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18
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Wu P, Jia M, Lin W, Ma S. Matched Coupling of Propargylic Carbonates with Cyclopropanols. Org Lett 2018; 20:554-557. [DOI: 10.1021/acs.orglett.7b03637] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Penglin Wu
- Research
Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China
| | - Minqiang Jia
- Research
Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China
| | - Weilong Lin
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Shengming Ma
- Research
Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
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19
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NiICatalyzes the Regioselective Cross-Coupling of Alkylzinc Halides and Propargyl Bromides to Allenes. Chemistry 2017; 23:1584-1590. [DOI: 10.1002/chem.201603758] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Indexed: 12/14/2022]
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20
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Luo H, Yu Y, Ma S. Suzuki coupling for preparation of allenes – ligand effects and chirality transfer. Org Chem Front 2016. [DOI: 10.1039/c6qo00489j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
o-(Diphenylphosphino)benzaldehyde has been identified as the effective ligand for the coupling of propargylic carbonates and organoboronic acids under mild conditions.
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Affiliation(s)
- Hongwen Luo
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Yihua Yu
- Department of Physics
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Shengming Ma
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
- State Key Laboratory of Organometallic Chemistry
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