51
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Sciortino G, Muñoz-López S, Lledós A, Ujaque G. Comparative Mechanistic Study on the [Au(NHC)]+-Catalyzed Hydration of Alkynes, Alkenes, and Allenes. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00292] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giuseppe Sciortino
- Departament de Quı́mica, Universitat Autònoma de Barcelona and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), 08193 Cerdanyola del Vallès, Catalonia, Spain
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy
| | - Sara Muñoz-López
- Departament de Quı́mica, Universitat Autònoma de Barcelona and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Agustí Lledós
- Departament de Quı́mica, Universitat Autònoma de Barcelona and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Gregori Ujaque
- Departament de Quı́mica, Universitat Autònoma de Barcelona and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), 08193 Cerdanyola del Vallès, Catalonia, Spain
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52
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Luna A, Herrera F, Higuera S, Murillo A, Fernández I, Almendros P. AgNO3·SiO2: Convenient AgNPs source for the sustainable hydrofunctionalization of allenyl-indoles using heterogeneous catalysis. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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53
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Trujillo C, Sánchez-Sanz G, Elguero J, Alkorta I. The Lewis acidities of gold(I) and gold(III) derivatives: a theoretical study of complexes of AuCl and AuCl3. Struct Chem 2020. [DOI: 10.1007/s11224-020-01590-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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54
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Gallardo-Fuentes S, Ormazábal-Toledo R, Fernández I. Unraveling the Selectivity Patterns in Phosphine-Catalyzed Annulations of Azomethine Imines and Allenoates. J Org Chem 2020; 85:9272-9280. [DOI: 10.1021/acs.joc.0c01272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Rodrigo Ormazábal-Toledo
- Departamento de Quı́mica, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago 1058, Chile
- Centro Integrativo de Biologı́a y Quı́mica Aplicada (CIBQA), Universidad Bernardo O’Higgins, Santiago 8370854, Chile
| | - Israel Fernández
- Departamento de Quı́mica Orgánica I and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Facultad de Ciencias Quı́micas, Universidad Complutense de Madrid, Madrid 28040, Spain
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55
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Simonetti SO, Pellegrinet SC. Theoretical Study of the Borono-Mannich Reaction with Pinacol Allenylboronate. J Org Chem 2020; 85:7494-7500. [PMID: 32364384 DOI: 10.1021/acs.joc.0c01003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A density functional theory study of the mechanism of the Borono-Mannich reaction using benzylamine and piperidine as representative examples of primary and secondary amines with pinacol allenylboronate is presented. The study shows that both reactions progress through coordination between the boron and the phenolic oxygen. Ring size strain and hydrogen bond activation appear to determine the observed divergent regioselectivity. In the case of benzylamine, the eight-membered ring transition structure that leads to the propargylamine exhibits a hydrogen bond between the hydrogen attached to the nitrogen and the phenolic oxygen (γ-attack), whereas for piperidine a hydrogen bond between the hydrogen on the imine carbon and one of the oxygens of the pinacol group was observed in the six-membered ring transition structure toward the allenylamine (α-attack).
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Affiliation(s)
- Sebastián O Simonetti
- Instituto de Química Rosario (IQUIR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Silvina C Pellegrinet
- Instituto de Química Rosario (IQUIR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
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56
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Guo L, Gao Y, Wang Z, Li Z, Zhang Y, Wang H, Chen X, Gong Z, Chen S. Regio- and Stereoselective Synthesis of Highly Functionalized Tetrasubstituted Olefins by Iodine-Mediated Iodofunctionalization of Ferrocene-Containing Allenylphosphonates. J Org Chem 2020; 85:7358-7367. [DOI: 10.1021/acs.joc.0c00762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Le Guo
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Yanpeng Gao
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Zishuo Wang
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Zhi Li
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Yingjie Zhang
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Haidong Wang
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Xihui Chen
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Zhenbo Gong
- College of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, People’s Republic of China
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
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57
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Zhang C, Wang G, Zhan L, Yang X, Wang J, Wei Y, Xu S, Shi M, Zhang J. Gold(I) or Gold(III) as Real Intermediate Species in Gold-Catalyzed Cycloaddition Reactions of Enynal/Enynone? ACS Catal 2020. [DOI: 10.1021/acscatal.0c00220] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Caiyun Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Gendi Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Licheng Zhan
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xueyan Yang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jiwei Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Sheng Xu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Min Shi
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Jun Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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58
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Guo K, Kleij AW. Cu-Catalyzed Synthesis of Tetrasubstituted 2,3-Allenols through Decarboxylative Silylation of Alkyne-Substituted Cyclic Carbonates. Org Lett 2020; 22:3942-3945. [PMID: 32338521 DOI: 10.1021/acs.orglett.0c01222] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
An efficient and mild Cu-catalyzed protocol has been developed for the decarboxylative silylation of alkyne-functionalized cyclic carbonate substrates affording 2,3-allenols featuring four different substituents. This practical methodology gives access to a wide scope of tetrasubstituted functionalized allenes in excellent yields.
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Affiliation(s)
- Kun Guo
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007Tarragona, Spain
| | - Arjan W Kleij
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007Tarragona, Spain.,Catalan Institute of Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
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59
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Cabrera-Trujillo JJ, Fernández I. Understanding the role of frustrated Lewis pairs as ligands in transition metal-catalyzed reactions. Dalton Trans 2020; 49:3129-3137. [PMID: 32073063 DOI: 10.1039/c9dt04806e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The role of frustrated Lewis pairs (FLPs) as ligands in gold(i) catalyzed-reactions has been computationally investigated by using state-of-the-art density functional theory calculations. To this end, the nature of (P,B)-FLP-transition metal interactions in different gold(i)-complexes has been first explored in detail with the help of the energy decomposition analysis method, which allowed us to accurately quantify the so far poorly understood AuB interactions present in these species. The impact of such interactions on the catalytic activity of gold(i)-complexes has been then evaluated by performing the Au(i)-catalyzed hydroarylation reaction of phenylacetylene with mesitylene. With the help of the activation strain model of reactivity, the factors governing the higher activity of Au(i)-complexes having a FLP as a ligand as compared to that of the parent PPh3 system have also been quantitatively identified.
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Affiliation(s)
- Jorge Juan Cabrera-Trujillo
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain.
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60
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Bartko SG, Hamzik PJ, Espindola L, Gomez C, Danheiser RL. Synthesis of Highly Substituted Pyridines via [4 + 2] Cycloadditions of Vinylallenes and Sulfonyl Cyanides. J Org Chem 2020; 85:548-563. [PMID: 31797669 DOI: 10.1021/acs.joc.9b02628] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convergent strategy for the synthesis of multisubstituted pyridines is described. Vinylallenes combine with commercially available arylsulfonyl cyanides in Diels-Alder cycloadditions to generate isopyridine cycloadducts that are converted to pyridines upon further heating or addition of a base. The 2-sulfonylpyridine products undergo nucleophilic aromatic substitution reactions with oxygen and carbon nucleophiles to provide access to a variety of highly substituted pyridines.
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Affiliation(s)
- Samuel G Bartko
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Phillip J Hamzik
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Leandro Espindola
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Christian Gomez
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Rick L Danheiser
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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61
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Saeidian H, Mirjafary Z. Engineering non-ionic carbon super- and hyperbases by a computational DFT approach: substituted allenes have unprecedented cation affinities. NEW J CHEM 2020. [DOI: 10.1039/d0nj02207a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
DFT calculations reveal that allenes substituted by a cyclopropene or a methylenecyclopropene group, offer suitable scaffolds for tailoring powerful carbon bases. The protonation at C(sp) site provide superbases with PAs = 879–1218 kJ mol−1.
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Affiliation(s)
- Hamid Saeidian
- Department of Science
- Payame Noor University (PNU)
- Tehran
- Iran
| | - Zohreh Mirjafary
- Department of Chemistry
- Science and Research Branch
- Islamic Azad University
- Tehran
- Iran
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62
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Maliszewska HK, Hughes DL, Muñoz MP. Allene-derived gold and platinum complexes: synthesis and first applications in catalysis. Dalton Trans 2020; 49:4034-4038. [PMID: 32134415 DOI: 10.1039/d0dt00665c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report here the synthesis, full characterisation and first application in catalysis of novel Au(i), Au(iii) and Pt(ii) carbene-type complexes formed from bis(pyridyl)allenes. The catalytic activity of the new Au(i)-complexes in the cyclisation of 1,6-enynes, a benchmark reaction for new Au and Pt complexes, was comparable to Au(i)-state-of-the-art catalysts used in these reactions. Reactions with the new Au(iii)- and Pt(ii)-complexes occurred under milder conditions than those reported with AuCl3 and PtCl2.
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Affiliation(s)
- Hanna K Maliszewska
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
| | - David L Hughes
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
| | - María Paz Muñoz
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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63
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Quirós MT, Gómez-Bengoa E, Muñoz MP. Unravelling mechanistic insights in the platinum-catalysed dihydroalkoxylation of allenes. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2019-0214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The mechanism of the platinum-catalysed dihydroalkoxylation of allenes to give acetals has been studied experimentally and by computational methods. Our findings further explain divergent reactivity encountered for platinum- and gold-vinyl intermediates after the first nucleophilic attack onto the coordinated allene, as well as provide new details on the catalytic cycle with platinum, uncovering enol ethers as resting states of the catalytic cycle, a SEOx process via Pt(IV)–H as the final protodemetallation step after the second nucleophilic attack when neutral platinum complexes are used, and a fast acid promoted addition of methanol to enol ethers when cationic platinum complexes are employed.
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Affiliation(s)
- María Teresa Quirós
- School of Chemistry , University of East Anglia , Earlham Road , Norwich , NR4 7TJ , UK
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica , Universidad del País Vasco , Apt. 1072 , 20080 San Sebastián , Spain
| | - María Paz Muñoz
- School of Chemistry , University of East Anglia , Earlham Road , Norwich , NR4 7TJ , UK
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64
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Zhu L, Zhang J, Yang H, Cui C. Synthesis of Silaketenimine Anion and Its Coupling with Isocyanide. J Am Chem Soc 2019; 141:19600-19604. [DOI: 10.1021/jacs.9b11913] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Lizhao Zhu
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Jianying Zhang
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Hao Yang
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Chunming Cui
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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65
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Perego LA, Bonilla P, Melchiorre P. Photo‐Organocatalytic Enantioselective Radical Cascade Enabled by Single‐Electron Transfer Activation of Allenes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900973] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Luca Alessandro Perego
- ICIQ – Institute of Chemical Research of Cataloniathe Barcelona Institute of Science and Technology Avinguda Països Catalans 16 43007 Tarragona Spain
| | - Pablo Bonilla
- ICIQ – Institute of Chemical Research of Cataloniathe Barcelona Institute of Science and Technology Avinguda Països Catalans 16 43007 Tarragona Spain
| | - Paolo Melchiorre
- ICIQ – Institute of Chemical Research of Cataloniathe Barcelona Institute of Science and Technology Avinguda Països Catalans 16 43007 Tarragona Spain
- ICREA– Passeig Lluís Companys 23 08010 Barcelona Spain
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66
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The synthesis and structural characterization of furanyl-1,2,3-triazole Gold(I) and its application in synthesis of enones from propargylic esters and alcohols. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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67
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Hu W, Shan L, Ma F, Zhang Y, Yang Y, Wang D. The synthesis of methyl triazole-4-carboxylate gold(I) complex and application on allene synthesis and alkyne hydration. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.107564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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68
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Yao W, Wu Q, Huang R, Zhang Y, Yang Y, Zhang L, Wang D. The Practical Method to Synthesize Gold Nanoparticles Supported on Hydrotalcite and Application on Oxidation and Hydration Reactions. ChemistrySelect 2019. [DOI: 10.1002/slct.201902730] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wei Yao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Qiang Wu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Ronghui Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Yilin Zhang
- Department of ChemistryWest Virginia University, Morgantown West Virginia 26506 United States
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Liang Zhang
- National Engineering Laboratory for Cereal Fermentation TechnologyJiangnan University Wuxi 214122 China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
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69
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Guo L, Zhao W, Li M, Dong S, Gong J, Chen S. CuI‐Catalyzed coupling reaction of diazophosphonates with ferrocenylacetylenes: an efficient synthesis of ferrocene‐containing allenylphosphonates. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Le Guo
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical EngineeringInner Mongolia University Hohhot 010021 People's Republic of China
- College of Chemical EngineeringOrdos Institute of Technology Ordos 017000 People's Republic of China
| | - Wanrong Zhao
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical EngineeringInner Mongolia University Hohhot 010021 People's Republic of China
| | - Min Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical EngineeringInner Mongolia University Hohhot 010021 People's Republic of China
| | - Shuqi Dong
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical EngineeringInner Mongolia University Hohhot 010021 People's Republic of China
| | - Jianye Gong
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical EngineeringInner Mongolia University Hohhot 010021 People's Republic of China
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical EngineeringInner Mongolia University Hohhot 010021 People's Republic of China
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70
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Marín-Luna M, Nieto Faza O, Silva López C. Gold-Catalyzed Homogeneous (Cyclo)Isomerization Reactions. Front Chem 2019; 7:296. [PMID: 31139614 PMCID: PMC6527766 DOI: 10.3389/fchem.2019.00296] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 04/11/2019] [Indexed: 01/09/2023] Open
Abstract
Gold is currently one of the most used metals in organometallic catalysis. The ability of gold to activate unsaturated groups in different modes, together with its tolerance to a wide range of functional groups and reaction conditions, turns gold-based complexes into efficient and highly sought after catalysts. Natural products and relevant compounds with biological and pharmaceutical activity are often characterized by complex molecular structures. (Cyclo)isomerization reactions are often a useful strategy for the generation of this molecular complexity from synthetically accessible reactants. In this review, we collect the most recent contributions in which gold(I)- and/or gold(III)-catalysts mediate intramolecular (cyclo)isomerization transformations of unsaturated species, which commonly feature allene or alkyne motifs, and organize them depending on the substrate and the reaction type.
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Affiliation(s)
- Marta Marín-Luna
- Departamento de Química Orgánica, Universidade de Vigo, Vigo, Spain
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71
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Lin JS, Li TT, Jiao GY, Gu QS, Cheng JT, Lv L, Liu XY. Chiral Brønsted Acid Catalyzed Dynamic Kinetic Asymmetric Hydroamination of Racemic Allenes and Asymmetric Hydroamination of Dienes. Angew Chem Int Ed Engl 2019; 58:7092-7096. [PMID: 30919531 DOI: 10.1002/anie.201900955] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/19/2019] [Indexed: 12/31/2022]
Abstract
The first highly efficient and practical chiral Brønsted acid catalyzed dynamic kinetic asymmetric hydroamination (DyKAH) of racemic allenes and asymmetric hydroamination of unactivated dienes with both high E/Z selectivity and enantioselectivity are described herein. The transformation proceeds through a new catalytic asymmetric model involving a highly reactive π-allylic carbocationic intermediate, generated from racemic allenes or dienes through a proton transfer mediated by an activating/directing thiourea group. This method affords expedient access to structurally diverse enantioenriched, potentially bioactive alkenyl-containing aza-heterocycles and bicyclic aza-heterocycles.
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Affiliation(s)
- Jin-Shun Lin
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China.,Department of Chemistry, Tsinghua University, Beijing, 100084, China.,Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Tao-Tao Li
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Guan-Yuan Jiao
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jiang-Tao Cheng
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ling Lv
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xin-Yuan Liu
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
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72
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Lin J, Li T, Jiao G, Gu Q, Cheng J, Lv L, Liu X. Chiral Brønsted Acid Catalyzed Dynamic Kinetic Asymmetric Hydroamination of Racemic Allenes and Asymmetric Hydroamination of Dienes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900955] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jin‐Shun Lin
- State Key Laboratory of Chemical OncogenomicsKey Laboratory of Chemical BiologyGraduate School at ShenzhenTsinghua University Shenzhen 518055 China
- Department of ChemistryTsinghua University Beijing 100084 China
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Tao‐Tao Li
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Guan‐Yuan Jiao
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Qiang‐Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of ChemistrySouthern University of Science and Technology Shenzhen 518055 China
| | - Jiang‐Tao Cheng
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Ling Lv
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Xin‐Yuan Liu
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
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73
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Li S, Wu XX, Chen S. Base-promoted direct synthesis of functionalized N-arylindoles via the cascade reactions of allenic ketones with indoles. Org Biomol Chem 2019; 17:789-793. [PMID: 30627719 DOI: 10.1039/c8ob02921k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient Cs2CO3-promoted cascade benzannulation reaction of allenic ketones with indoles was achieved for the synthesis of functionalized N-arylindole derivatives under transition-metal-free conditions. A series of readily available starting materials can undergo the process successfully. It represents a practical method for the construction of N-arylindole scaffolds with high atom economy.
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Affiliation(s)
- Shengxiao Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China.
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74
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Liu RY, Zhou Y, Yang Y, Buchwald SL. Enantioselective Allylation Using Allene, a Petroleum Cracking Byproduct. J Am Chem Soc 2019; 141:2251-2256. [PMID: 30685967 DOI: 10.1021/jacs.8b13907] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Allene (C3H4) gas is produced and separated on million-metric-ton scale per year during petroleum refining but is rarely employed in organic synthesis. Meanwhile, the addition of an allyl group (C3H5) to ketones is among the most common and prototypical reactions in synthetic chemistry. Herein, we report that the combination of allene gas with inexpensive and environmentally benign hydrosilanes, such as PMHS, can serve as a replacement for stoichiometric quantities of allylmetal reagents, which are required in most enantioselective ketone allylation reactions. This process is catalyzed by copper salts and commercially available ligands, operates without specialized equipment or pressurization, and tolerates a broad range of functional groups. Furthermore, the exceptional chemoselectivity of this catalyst system enables industrially relevant C3 hydrocarbon mixtures of allene with methylacetylene and propylene to be applied directly.
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Affiliation(s)
- Richard Y Liu
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Yujing Zhou
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Yang Yang
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Stephen L Buchwald
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
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75
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Min XL, Sun C, He Y. Synthesis of 1-Amino-2H-quinolizin-2-one Scaffolds by Tandem Silver Catalysis. Org Lett 2019; 21:724-728. [DOI: 10.1021/acs.orglett.8b03935] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Long Min
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Chao Sun
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Ying He
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
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76
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Yao Y, Yang W, Lin Q, Yang W, Li H, Wang L, Gu F, Yang D. 1,3-Dipolar cycloaddition of nitrones to oxa(aza)bicyclic alkenes. Org Chem Front 2019. [DOI: 10.1039/c9qo00660e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new 1,3-dipolar cycloaddition of oxa(aza)bicyclic alkenes with nitrones has been developed without any catalyst and additive under mild conditions. The proposed concerted mechanism is investigated by DFT calculations of the reaction pathways.
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Affiliation(s)
- Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Weitao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Huanyong Li
- Analytical and Testing Center
- Jinan University
- Guangzhou 510632
- People's Republic of China
| | - Lin Wang
- Analytical and Testing Center
- Jinan University
- Guangzhou 510632
- People's Republic of China
| | - Fenglong Gu
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
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77
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Yamazaki K, Kommagalla Y, Ano Y, Chatani N. A computational study of cobalt-catalyzed C–H iodination reactions using a bidentate directing group with molecular iodine. Org Chem Front 2019. [DOI: 10.1039/c8qo01286e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A computational methodology was used to collect detailed mechanistic information on the cobalt-catalyzed C–H iodination of aromatic amides with molecular iodine using an N,N′-bidentate directing group.
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Affiliation(s)
- Ken Yamazaki
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Yadagiri Kommagalla
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Yusuke Ano
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Naoto Chatani
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Osaka 565-0871
- Japan
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78
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Couce-Rios A, Lledós A, Fernández I, Ujaque G. Origin of the Anti-Markovnikov Hydroamination of Alkenes Catalyzed by L–Au(I) Complexes: Coordination Mode Determines Regioselectivity. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03843] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Almudena Couce-Rios
- Departament de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Valles, Catalonia 08193, Spain
| | - Agustí Lledós
- Departament de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Valles, Catalonia 08193, Spain
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - Gregori Ujaque
- Departament de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Valles, Catalonia 08193, Spain
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79
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Selg C, Kraft FB, Welcke L, Zeitler K. A Catalytic Strategy for α,ω‐Functionalization: NHC‐Mediated Fragmentation/Umpolung Cascades to Access Hydroxytrifluoromethyl Ynones and Allenones. ChemCatChem 2018. [DOI: 10.1002/cctc.201801454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Christoph Selg
- Institut für Organische ChemieUniversität Leipzig Johannisallee 29 04103 Leipzig Germany
| | - Fabian B. Kraft
- Institut für Organische ChemieUniversität Leipzig Johannisallee 29 04103 Leipzig Germany
| | - Linda Welcke
- Institut für Organische ChemieUniversität Leipzig Johannisallee 29 04103 Leipzig Germany
| | - Kirsten Zeitler
- Institut für Organische ChemieUniversität Leipzig Johannisallee 29 04103 Leipzig Germany
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80
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Intermolecular [2+2] photocycloaddition of chalcones with 2,3-dimethyl-1,3-butadiene under neat reaction conditions. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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81
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Xu Q, Dupper NJ, Smaligo AJ, Fan YC, Cai L, Wang Z, Langenbacher AD, Chen JN, Kwon O. Catalytic Enantioselective Synthesis of Guvacine Derivatives through [4 + 2] Annulations of Imines with α-Methylallenoates. Org Lett 2018; 20:6089-6093. [PMID: 30246538 PMCID: PMC6173629 DOI: 10.1021/acs.orglett.8b02489] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
P-Chiral [2.2.1] bicyclic phosphines (HypPhos catalysts) have been applied to reactions between α-alkylallenoates and imines, producing guvacine derivatives. These HypPhos catalysts were assembled from trans-4-hydroxyproline, with the modular nature of the synthesis allowing variations of the exocyclic P and N substituents. Among them, exo-( p-anisyl)-HypPhos was most efficacious for [4 + 2] annulations between ethyl α-methylallenoate and imines. Through this method, ( R)-aplexone was identified as being responsible for the decrease in the cellular levels of cholesterol.
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Affiliation(s)
- Qihai Xu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569
| | - Nathan J. Dupper
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569
| | - Andrew J. Smaligo
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569
| | - Yi Chiao Fan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569
| | - Lingchao Cai
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569
| | - Zhiming Wang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569
| | - Adam D. Langenbacher
- Department of Molecular Cellular and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Jau-Nian Chen
- Department of Molecular Cellular and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569
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82
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Harris RJ, Carden RG, Duncan AN, Widenhoefer RA. Kinetics and Mechanism of the Gold-Catalyzed Intermolecular Hydroalkoxylation of Allenes with Alcohols. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02211] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Robert J. Harris
- Department of Chemistry, French Family Science
Center, Duke University, Durham, North Carolina 27708, United States
| | - Robert G. Carden
- Department of Chemistry, French Family Science
Center, Duke University, Durham, North Carolina 27708, United States
| | - Alethea N. Duncan
- Department of Chemistry, French Family Science
Center, Duke University, Durham, North Carolina 27708, United States
| | - Ross A. Widenhoefer
- Department of Chemistry, French Family Science
Center, Duke University, Durham, North Carolina 27708, United States
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83
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Zhang JS, Liu L, Chen T, Han LB. Transition-Metal-Catalyzed Three-Component Difunctionalizations of Alkenes. Chem Asian J 2018; 13:2277-2291. [DOI: 10.1002/asia.201800647] [Citation(s) in RCA: 158] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/12/2018] [Indexed: 01/26/2023]
Affiliation(s)
- Ji-Shu Zhang
- College of Chemistry and Chemical engineering; Hunan University; Changsha Hunan 410082 China
| | - Long Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources; College of Materials and Chemical Engineering; Hainan University; Haikou, Hainan 570228 China
| | - Tieqiao Chen
- College of Chemistry and Chemical engineering; Hunan University; Changsha Hunan 410082 China
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources; College of Materials and Chemical Engineering; Hainan University; Haikou, Hainan 570228 China
| | - Li-Biao Han
- National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Ibaraki 305-8565 Japan
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84
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Muñoz-López S, Couce-Rios A, Sciortino G, Lledós A, Ujaque G. Mechanistic Insights on the Hydration of Terminal and Internal Allenes Catalyzed by [(NHC)Au]+. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00230] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sara Muñoz-López
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - Almudena Couce-Rios
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - Giuseppe Sciortino
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy
| | - Agustí Lledós
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - Gregori Ujaque
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
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85
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Garner MH, Hoffmann R, Rettrup S, Solomon GC. Coarctate and Möbius: The Helical Orbitals of Allene and Other Cumulenes. ACS CENTRAL SCIENCE 2018; 4:688-700. [PMID: 29974064 PMCID: PMC6026781 DOI: 10.1021/acscentsci.8b00086] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Indexed: 05/24/2023]
Abstract
As brought to the attention of the community by Hendon et al. and noted by previous workers, the π orbitals of the equilibrium geometry odd-carbon (even number of double bonds = n) [n]cumulenes may be written in either rectilinear or helical form. We trace the origins and detailed composition of the helical orbitals of cumulenes, which emerge in the simplest Hückel model and are not much modified in advanced computations. For the α,ω-disubstituted even [n]cumulenes, the helical representation is obligatory as the symmetry is reduced from D2d to C2. A relationship is apparent between these helical orbitals of the even [n]cumulenes, seen as a Herges coarctate system, and the corresponding Möbius cyclic polyene orbitals. The twist of the orbitals varies in interesting ways along the helix, and so does the contribution of the component atomic orbitals. Though the electronic structures of even [n]cumulenes and Möbius cyclopolyenes are closely related, they differ for higher n in intriguing ways; these are linked to the constrained rotation of the basis orbitals along the helical twist itinerary. Relations are constructed between the level patterns of the π-systems of even [n]cumulenes and ideas of Hückel and Möbius aromaticity.
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Affiliation(s)
- Marc H. Garner
- Department of Chemistry and Nano-Science Center, University
of Copenhagen, Universitetsparken
5, DK-2100, Copenhagen
Ø, Denmark
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York 4850, United
States
| | - Roald Hoffmann
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York 4850, United
States
| | - Sten Rettrup
- Department of Chemistry and Nano-Science Center, University
of Copenhagen, Universitetsparken
5, DK-2100, Copenhagen
Ø, Denmark
| | - Gemma C. Solomon
- Department of Chemistry and Nano-Science Center, University
of Copenhagen, Universitetsparken
5, DK-2100, Copenhagen
Ø, Denmark
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86
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Blieck R, Abed Ali Abdine R, Taillefer M, Monnier F. Regio- and Stereoselective Copper-Catalyzed Allylation of 1,3-Dicarbonyl Compounds with Terminal Allenes. Org Lett 2018; 20:2232-2235. [PMID: 29600714 DOI: 10.1021/acs.orglett.8b00575] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Simple ligand-free copper systems were found as efficient catalysts for the addition of 1,3-dicarbonyl compounds to N-allenyl derivatives. This highly regio- and stereoselective reaction has been accomplished in the presence of malonates, 1,3-ketoesters, and 1,3-diketones with good to excellent yields under mild conditions. This methodology represents the first allylation of 1,3-dicarbonyl compounds with allenes catalyzed by copper.
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Affiliation(s)
- Rémi Blieck
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France
| | - Racha Abed Ali Abdine
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France
| | - Marc Taillefer
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France
| | - Florian Monnier
- Ecole Nationale Supérieure de Chimie de Montpellier , Institut Charles Gerhardt Montpellier UMR 5253 CNRS, AM2N , 8 rue de l'Ecole Normale , Montpellier 34296 Cedex 5, France.,Institut Universitaire de France, IUF , 1 rue Descartes , 75231 Paris cedex 5 , France
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87
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Alcaide B, Almendros P, Fernández I, Herrera F, Luna A. Gold-Catalyzed Divergent Ring-Closing Modes of Indole-Tethered Amino Allenynes. Chemistry 2018; 24:1448-1454. [PMID: 29218812 DOI: 10.1002/chem.201705294] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Indexed: 11/07/2022]
Abstract
Indole-tethered amino allenynes were chemodivergently cyclized for the controlled preparation of fused polycyclic indoles using gold catalysis. Double cyclization of terminal allenynes afforded hexacyclic 15 H-indolo[1,2,3-de]quinolino[3,2,1-ij]quinoxalines, in which allenynes bearing a substituted alkyne at the terminal end generated 12,13-dihydro-7 H-indolo[3,2-c]acridines, which are 5-membered cyclized adducts. Density functional theory calculations were performed to shed light on this difference in reactivity.
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Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas, IQOG-CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | - Israel Fernández
- Departamento de Química Orgánica I, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Fernando Herrera
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Amparo Luna
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain
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88
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Li Y, Tu PC, Zhou L, Kirillov AM, Fang R, Yang L. How Does the Catalyst Affect the Reaction Pathway? DFT Analysis of the Mechanism and Selectivity in the 1,6-Diyne Ester Cycloisomerization. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yunhe Li
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Peng-Cheng Tu
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Lin Zhou
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Alexander M. Kirillov
- Centro
de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Ran Fang
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Lizi Yang
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
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89
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Regio- and diastereoselectivity of the cycloaddition of nitrones with N-propadienylindole and pyrroles. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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90
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Huang R, Yang Y, Wang DS, Zhang L, Wang D. Where does Au coordinate to N-(2-pyridiyl)benzotriazole: gold-catalyzed chemoselective dehydrogenation and borrowing hydrogen reactions. Org Chem Front 2018. [DOI: 10.1039/c7qo00756f] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Pyridyltriazole gold(i) complexes proved to be an efficient precatalyst for the most challenging gold-catalyzed borrowing hydrogen reaction and dehydrogenation of alcohols and amines.
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Affiliation(s)
- Ronghui Huang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | | | - Liang Zhang
- National Engineering Laboratory for Cereal Fermentation Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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91
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Wen X, Deng J, Sheng Q, Li J. Mechanisms and Origins of Chemoselectivities of Gold(I)-Catalyzed Nitrogenations of Alkynes with Trimethylsilyl Azide: A Computational Study. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiuling Wen
- Department of Chemistry; Jinan University; 510632 Guangzhou Guangdong P. R. China
| | - Jiaojiao Deng
- Department of Chemistry; Jinan University; 510632 Guangzhou Guangdong P. R. China
| | - Qiang Sheng
- Department of Chemistry; Jinan University; 510632 Guangzhou Guangdong P. R. China
| | - Juan Li
- Department of Chemistry; Jinan University; 510632 Guangzhou Guangdong P. R. China
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92
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Liberman-Martin AL, Grubbs RH. Ruthenium Olefin Metathesis Catalysts Featuring a Labile Carbodicarbene Ligand. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00615] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Allegra L. Liberman-Martin
- Arnold and Mabel Beckman
Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Robert H. Grubbs
- Arnold and Mabel Beckman
Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, United States
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93
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Molteni G, Ponti A. Site- and Regioselectivity of Nitrile Oxide-Allene Cycloadditions: DFT-Based Semiquantitative Predictions. J Org Chem 2017; 82:10710-10714. [PMID: 28849926 DOI: 10.1021/acs.joc.7b01866] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nitrile oxide 1,3-dipolar cycloaddition to arylsulfonyl- and dialkylaminoallenes have been investigated within the framework of the Kohn-Sham density functional theory (DFT) at the B3LYP/6-31G(d,p) level. The hitherto-unexplained experimental behavior of sulfonylallenes was rationalized by transition-state calculations which enabled a semiquantitative treatment of the cycloaddition site- and regioselectivity. The reliability of DFT computations was further established by predicting the complete selectivity of the nitrile oxide cycloaddition to dialkylaminoallenes according to previous experimental findings.
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Affiliation(s)
- Giorgio Molteni
- Università degli Studi di Milano , Dipartimento di Chimica, via Golgi 19, 20133 Milano, Italy
| | - Alessandro Ponti
- Istituto di Scienze e Tecnologie Molecolari (ISTM), Consiglio Nazionale delle Ricerche , via Golgi 19, 20133 Milano, Italy
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94
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Liu J, Nie M, Zhou Q, Gao S, Jiang W, Chung LW, Tang W, Ding K. Enantioselective palladium-catalyzed diboration of 1,1-disubstituted allenes. Chem Sci 2017; 8:5161-5165. [PMID: 28970901 PMCID: PMC5615263 DOI: 10.1039/c7sc01254c] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/07/2017] [Indexed: 11/21/2022] Open
Abstract
A practical and enantioselective palladium-catalyzed diboration of 1,1-disubstituted allenes is developed by employing a P-chiral monophosphorus ligand, BI-DIME. A series of diboronic esters containing a chiral tertiary boronic ester moiety are formed in excellent yields and ee's with the palladium loading as low as 0.2 mol%. DFT calculations revealed a concerted mechanism of oxidative addition of bis(pinacolato)diboron and allene insertion, as well as a critical dispersion effect on the origins of the enantioselectivity. The method is successfully applied to the concise and enantioselective synthesis of brassinazole.
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Affiliation(s)
- Jiawang Liu
- State Key Laboratory of Organometallic Chemistry , State Key Laboratory of Bio-Organic and Natural Products Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Ling Ling Rd , Shanghai 200032 , China . ;
| | - Ming Nie
- State Key Laboratory of Organometallic Chemistry , State Key Laboratory of Bio-Organic and Natural Products Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Ling Ling Rd , Shanghai 200032 , China . ;
| | - Qinghai Zhou
- Department of Chemistry , South University of Science and Technology of China , Shenzhen 518055 , China .
- Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071 , China
| | - Shen Gao
- State Key Laboratory of Organometallic Chemistry , State Key Laboratory of Bio-Organic and Natural Products Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Ling Ling Rd , Shanghai 200032 , China . ;
| | - Wenhao Jiang
- State Key Laboratory of Organometallic Chemistry , State Key Laboratory of Bio-Organic and Natural Products Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Ling Ling Rd , Shanghai 200032 , China . ;
| | - Lung Wa Chung
- Department of Chemistry , South University of Science and Technology of China , Shenzhen 518055 , China .
| | - Wenjun Tang
- State Key Laboratory of Organometallic Chemistry , State Key Laboratory of Bio-Organic and Natural Products Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Ling Ling Rd , Shanghai 200032 , China . ;
| | - Kuiling Ding
- State Key Laboratory of Organometallic Chemistry , State Key Laboratory of Bio-Organic and Natural Products Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Ling Ling Rd , Shanghai 200032 , China . ;
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071 , China
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95
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Pulis AP, Yeung K, Procter DJ. Enantioselective copper catalysed, direct functionalisation of allenes via allyl copper intermediates. Chem Sci 2017; 8:5240-5247. [PMID: 28959423 PMCID: PMC5605774 DOI: 10.1039/c7sc01968h] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 06/01/2017] [Indexed: 11/29/2022] Open
Abstract
We explore the breadth of the copper catalysed functionalisation of allenes, which enables efficient access to enantioenriched, densely functionalised molecules.
The direct functionalisation of allenes under copper catalysis enables efficient access to enantioenriched, densely functionalised molecules. In this review we explore the breadth and depth of a versatile reaction manifold, which involves the element-cupration of allenes to generate allyl copper intermediates that are subsequently coupled with diverse arrays of electrophiles.
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Affiliation(s)
- Alexander P Pulis
- School of Chemistry , University of Manchester , Oxford Rd , Manchester , M13 9PL , UK . ;
| | - Kay Yeung
- School of Chemistry , University of Manchester , Oxford Rd , Manchester , M13 9PL , UK . ;
| | - David J Procter
- School of Chemistry , University of Manchester , Oxford Rd , Manchester , M13 9PL , UK . ;
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96
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97
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Li Y, Kirillov AM, Fang R, Yang L. Effect of Substituent on the Mechanism and Chemoselectivity of the Gold(I)-Catalyzed Propargyl Ester Tandem Cyclization. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00042] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yunhe Li
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Alexander M. Kirillov
- Centro
de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Ran Fang
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Lizi Yang
- State
Key Laboratory of Applied Organic Chemistry and Key Laboratory of
Nonferrous Metals Chemistry and Resources Utilization of Gansu Province,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
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98
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Zhou H, Wang Y, Zhang L, Cai M, Luo S. Enantioselective Terminal Addition to Allenes by Dual Chiral Primary Amine/Palladium Catalysis. J Am Chem Soc 2017; 139:3631-3634. [PMID: 28238267 DOI: 10.1021/jacs.7b00437] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We herein describe a synergistic chiral primary amine/achiral palladium catalyzed enantioselective terminal addition to allenes with α-branched β-ketocarbonyls and aldehydes. The reactions afford allylic adducts bearing acyclic all-carbon quaternary centers with high regio- and enantioselectivity. A wide range of allenes including those aliphatic or 1,1'-disubstituted could be employed, thus expanding the scope of typical asymmetric allylic alkylation reactions.
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Affiliation(s)
- Han Zhou
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Yaning Wang
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Long Zhang
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Mao Cai
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences , Beijing, 100049, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin, 300071, China
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99
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Alcaide B, Almendros P, Cembellín S, Fernández I, Martínez del Campo T. Cationic AuIII
versus AuI
: Catalyst-Controlled Divergent Reactivity of Alkyne-Tethered Lactams. Chemistry 2017; 23:3012-3015. [DOI: 10.1002/chem.201700234] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos; Unidad Asociada al CSIC; Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, IQOG; Consejo Superior de Investigaciones Científicas, CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - Sara Cembellín
- Grupo de Lactamas y Heterociclos Bioactivos; Unidad Asociada al CSIC; Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Israel Fernández
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Teresa Martínez del Campo
- Grupo de Lactamas y Heterociclos Bioactivos; Unidad Asociada al CSIC; Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
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100
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García-Rodeja Y, Fernández I. Understanding the Effect of α-Cationic Phosphines and Group 15 Analogues on π-Acid Catalysis. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00859] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yago García-Rodeja
- Departamento de Química Orgánica
I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Israel Fernández
- Departamento de Química Orgánica
I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
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