51
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Ji K, Nelson J, Zhang L. Gold-catalyzed regioselective oxidation of propargylic carboxylates: a reliable access to α-carboxy-α,β-unsaturated ketones/aldehydes. Beilstein J Org Chem 2013; 9:1925-30. [PMID: 24204402 PMCID: PMC3817591 DOI: 10.3762/bjoc.9.227] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Accepted: 08/23/2013] [Indexed: 11/23/2022] Open
Abstract
Gold-catalyzed intermolecular oxidation of carboxylates of primary or secondary propargylic alcohols are realized with excellent regioselectivity, which is ascribed to inductive polarization of the C-C triple bond by the electron-withdrawing carboxy group. The gold carbene intermediates thus generated undergo selective 1,2-acyloxy migration over a 1,2-C-H insertion, and the selectivities could be dramatically improved by the use of a P,S-bidentate ligand, which is proposed to enable the formation of tris-coordinated and hence less electrophilic gold carbene species. α-Carboxy α,β-unsaturated ketones/aldehydes can be obtained with fair to excellent yields.
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Affiliation(s)
- Kegong Ji
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California, 93106, USA
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52
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Zhu S, Wu L, Huang X. Gold-Catalyzed Cyclization of 3-(2′-Azidoaryl)-1-arylpropargyl Carbonates or 3-Aryl-1-(2′-azidoaryl)propargyl Carbonates to Produce Quinolines. J Org Chem 2013; 78:9120-6. [DOI: 10.1021/jo401324k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Shugao Zhu
- Department
of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310028, PR China
| | - Luling Wu
- Department
of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310028, PR China
| | - Xian Huang
- Department
of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310028, PR China
- State Key Laboratory
of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, PR China
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53
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Yang W, Yu Y, Zhang T, Hansmann MM, Pflästerer D, Hashmi ASK. Gold-Catalyzed Highly Diastereoselective Synthesis of Functionalized 3,4-Disubstituted ButyrolactamsviaPhosphatyloxy or Carbonate Double Migrations. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300158] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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54
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Shiroodi RK, Gevorgyan V. Metal-catalyzed double migratory cascade reactions of propargylic esters and phosphates. Chem Soc Rev 2013; 42:4991-5001. [PMID: 23443274 PMCID: PMC3678355 DOI: 10.1039/c3cs35514d] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Propargylic esters and phosphates are easily accessible substrates, which exhibit rich and tunable reactivities in the presence of transition metal catalysts. π-Acidic metals, mostly gold and platinum salts, activate these substrates for an initial 1,2- or 1,3-acyloxy and phosphatyloxy migration process to form reactive intermediates. These intermediates are able to undergo further cascade reactions leading to a variety of diverse structures. This tutorial review systematically introduces the double migratory reactions of propargylic esters and phosphates as a novel synthetic method, in which further cascade reaction of the reactive intermediate is accompanied by a second migration of a different group, thus offering a rapid route to a wide range of functionalized products. The serendipitous observations, as well as designed approaches involving the double migratory cascade reactions, will be discussed with emphasis placed on the mechanistic aspects and the synthetic utilities of the obtained products.
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Affiliation(s)
- Roohollah Kazem Shiroodi
- Department of Chemistry, University of Illinois at Chicago, 845 West, Taylor Street, Chicago, Illinois 60607-7061, United States. Web: http://www.chem.uic.edu/vggroup/ Tel:+1-312-355-3579
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West, Taylor Street, Chicago, Illinois 60607-7061, United States. Web: http://www.chem.uic.edu/vggroup/ Tel:+1-312-355-3579
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55
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Yu Y, Yang W, Rominger F, Hashmi ASK. In-situ-Bildung nukleophiler Allene durch Gold-katalysierte Umlagerung von Propargylestern für hoch diastereoselektive intermolekulare C(sp3)-C(sp2)-Bindungsknüpfungen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302402] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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56
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Yu Y, Yang W, Rominger F, Hashmi ASK. In situ generation of nucleophilic allenes by the gold-catalyzed rearrangement of propargylic esters for the highly diastereoselective formation of intermolecular C(sp3)-C(sp2) bonds. Angew Chem Int Ed Engl 2013; 52:7586-9. [PMID: 23843175 DOI: 10.1002/anie.201302402] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Indexed: 11/06/2022]
Abstract
New perspectives, in particular for the synthesis of isochromane derivatives (see scheme), are provided by the title reaction. Excellent diastereoselectivites are achieved in this reaction which proceeds through a gold-catalyzed 1,3-acyloxy migration. In some cases exclusively the Z isomer is detected.
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Affiliation(s)
- Yang Yu
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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57
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Zhu Y, Tang HT, Zhan ZP. Copper(I)-Catalyzed Stereoselective Synthesis of (1E,3E)-2- Sulfonyl-1,3-dienes fromN-Propargylic Sulfonohydrazones. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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58
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Shu XZ, Shu D, Schienebeck CM, Tang W. Rhodium-catalyzed acyloxy migration of propargylic esters in cycloadditions, inspiration from the recent "gold rush". Chem Soc Rev 2013; 41:7698-711. [PMID: 22895533 DOI: 10.1039/c2cs35235d] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Transition metal-catalyzed acyloxy migration of propargylic esters offers versatile entries to allene and vinyl carbene intermediates for various fascinating subsequent transformations. Most π-acidic metals (e.g. gold and platinum) are capable of facilitating these acyloxy migration events. However, very few of these processes involve redox chemistry, which are well-known for most other transition metals such as rhodium. The coupling of acyloxy migration of propargylic esters with oxidative addition, migratory insertion, and reductive elimination may lead to ample new opportunities for the design of new reactions. This tutorial review summarizes recent developments in Rh-catalyzed 1,3- and 1,2-acyloxy migration of propargylic esters in a number of cycloaddition reactions. Related Au- and Pt-catalyzed cycloadditions involving acyloxy migration are also discussed.
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Affiliation(s)
- Xing-Zhong Shu
- School of Pharmacy, University of Wisconsin, Madison, 53705, USA
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59
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Rao W, Sally, Koh MJ, Chan PWH. Gold-catalyzed cycloisomerization of 1,7-enyne esters to structurally diverse cis-1,2,3,6-tetrahydropyridin-4-yl ketones. J Org Chem 2013; 78:3183-95. [PMID: 23458312 DOI: 10.1021/jo400121j] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A synthetic method that relies on gold(I)-catalyzed cycloisomerization of 1,7-enyne esters to prepare highly functionalized cis-1,2,3,6-tetrahydropyridin-4-yl ketone derivatives in good to excellent yields and as a single regio-, diastereo-, and enantiomer is described. By taking advantage of the distinctive differences in the electronic and steric properties between an NHC (NHC = N-heterocyclic carbene) and phosphine ligand in the respective gold(I) complexes, a divergence in product selectivity was observed. In the presence of [PhCNAuIPr](+)SbF6(-) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidine) as the catalyst, tandem 1,3-acyloxy migration/6-exo-trig cyclization/1,5-acyl migration of the substrate was found to selectively occur to give the δ-diketone-substituted 1,2,3,6-tetrahydropyridine adduct. In contrast, reactions with the gold(I) phosphine complex [MeCNAu(JohnPhos)](+)SbF6(-) (JohnPhos = (1,1'-biphenyl-2-yl)-di-tert-butylphosphine) as the catalyst was discovered to result in preferential 1,3-acyloxy migration/6-exo-trig cyclization/hydrolysis of the 1,7-enyne ester and formation of the cis-1,2,3,6-tetrahydropyridin-4-yl ketone derivative. The utility of this piperidine forming strategy as a synthetic tool that makes use of 1,7-enyne esters was exemplified by its application to the synthesis of an enantiopure analogue of the bioactive 2,3,4,4a,5,9b-hexahydroindeno[1,2-c]pyridine family of compounds.
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Affiliation(s)
- Weidong Rao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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60
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Suárez-Pantiga S, González JM. Electrophilic activation of unsaturated systems: Applications to selective organic synthesis. PURE APPL CHEM 2013. [DOI: 10.1351/pac-con-12-10-24] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Selected examples from previous work on iodonium-triggered approaches for the functionalization of unsaturated systems, which summarize innovative transformations, are presented. This section is mostly focused on C–C bond-forming processes from alkynes that are directly bonded to relevant heteroatoms, such as iodine, silicon, or sulfur. Besides, recent advances related to iodonium-promoted C–H functionalization reactions are briefly outlined. A second section shows representative examples of our current research activity on electrophilic reactions aimed at the activation of unsaturated systems, which now are built upon the potential offered by the so-called carbophilic catalysis. More specifically, a new catalytic cyclopentannulation sequence from N-tosylimines and propargyl tosylates and novel C–H functionalization processes from related tosylates are studied. Likewise, representative examples for the intermolecular Au(I)-catalyzed [2 + 2] cycloaddition reaction of sulfonylallenamides with activated alkenes are given, including the first enantioselective reaction of this type, which is also among the first examples of an intermolecular asymmetric gold-catalyzed reaction. The discussion of the reported iodonium and gold chemistry emphasizes a search for new intermolecular processes, although intramolecular reactions are also pursued and developed.
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Affiliation(s)
- Samuel Suárez-Pantiga
- 1Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, 33071 Oviedo, Spain
| | - José M. González
- 1Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, 33071 Oviedo, Spain
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61
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Malhotra D, Liu LP, Mashuta MS, Hammond GB. Gold-Catalyzed Annulations of 2-Alkynyl Benzaldehydes with Vinyl Ethers: Synthesis of Dihydronaphthalene, Isochromene, and Bicyclo[2.2.2]octane Derivatives. Chemistry 2013; 19:4043-50. [DOI: 10.1002/chem.201203841] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2012] [Revised: 12/11/2012] [Indexed: 01/01/2023]
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62
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Yang Y, Gao M, Shu WM, Wu LM, Zhang DX, Wu AX. Synthesis of α-iodoketals from methyl ketones via sustainable and orthogonal tandem catalysis. Org Biomol Chem 2013; 11:1226-33. [DOI: 10.1039/c2ob27028e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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63
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Hashmi ASK, Yang W, Yu Y, Hansmann MM, Rudolph M, Rominger F. Goldkatalysierte formale 1,6-Acyloxywanderung unter Bildung von 3,4-disubstituierten Pyrrolidin-2-onen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207287] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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64
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Hashmi ASK, Yang W, Yu Y, Hansmann MM, Rudolph M, Rominger F. Gold-catalyzed formal 1,6-acyloxy migration leading to 3,4-disubstituted pyrrolidin-2-ones. Angew Chem Int Ed Engl 2012; 52:1329-32. [PMID: 23212940 DOI: 10.1002/anie.201207287] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Indexed: 11/08/2022]
Affiliation(s)
- A Stephen K Hashmi
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
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65
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Yang JM, Zhang Z, Wei Y, Shi M. Silver(I)-catalyzed tandem reactions of N-activated aziridine-propargylic esters to pyrrolidin-3-one derivatives. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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66
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Fan L, Chen W, Tang K, Wu D. Stereoselective Synthesis of α-Ylidene-β-dicarbonyl Compounds: A Mild PhI(OAc)2-mediated Dehydrogenation Process. CHEM LETT 2012. [DOI: 10.1246/cl.2012.940] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Liyan Fan
- Department of Chemistry, Tongji University
| | - Wen Chen
- Department of Chemistry, Tongji University
| | | | - Dongbei Wu
- Department of Chemistry, Tongji University
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67
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Cran JW, Krafft ME. Regioselective Cyclizations Utilizing a Gold-Catalyzed [3,3] Propargyl Ester Rearrangement. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203923] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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68
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Cran JW, Krafft ME. Regioselective cyclizations utilizing a gold-catalyzed [3,3] propargyl ester rearrangement. Angew Chem Int Ed Engl 2012; 51:9398-402. [PMID: 22893601 DOI: 10.1002/anie.201203923] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 06/21/2012] [Indexed: 11/07/2022]
Affiliation(s)
- John W Cran
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA.
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69
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Shu D, Li X, Zhang M, Robichaux PJ, Guzei IA, Tang W. Rhodium-catalyzed carbonylation of cyclopropyl substituted propargyl esters: a tandem 1,3-acyloxy migration [5 + 1] cycloaddition. J Org Chem 2012; 77:6463-72. [PMID: 22793991 PMCID: PMC3420071 DOI: 10.1021/jo300973r] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have developed two different types of tandem reactions for the synthesis of highly functionalized cyclohexenones from cyclopropyl substituted propargyl esters. Both reactions were initiated by rhodium-catalyzed Saucy-Marbet 1,3-acyloxy migration. The resulting cyclopropyl substituted allenes derived from acyloxy migration then underwent [5 + 1] cycloaddition with CO. The acyloxy group not only eased the access to allene intermediates but also provided a handle for further selective functionalizations.
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Affiliation(s)
- Dongxu Shu
- School of Pharmacy, University of Wisconsin, Madison, WI 53705
- Department of Chemistry, University of Wisconsin, Madison, WI 53705
| | - Xiaoxun Li
- School of Pharmacy, University of Wisconsin, Madison, WI 53705
| | - Min Zhang
- School of Pharmacy, University of Wisconsin, Madison, WI 53705
| | - Patrick J. Robichaux
- School of Pharmacy, University of Wisconsin, Madison, WI 53705
- Department of Chemistry, University of Wisconsin, Madison, WI 53705
| | - Ilia A. Guzei
- Department of Chemistry, University of Wisconsin, Madison, WI 53705
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin, Madison, WI 53705
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70
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Huang G, Xie K, Lee D, Xia Y. Reactivity of Alkynyl Metal Carbenoids: DFT Study on the Pt-Catalyzed Cyclopropanation of Propargyl Ester Containing 1,3-Diynes. Org Lett 2012; 14:3850-3. [PMID: 22823463 DOI: 10.1021/ol301497v] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Genping Huang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Kelei Xie
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Daesung Lee
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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71
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Gold(III) Compounds for Homogeneous Catalysis: Preparation, Reaction Conditions, and Scope of Application. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2012. [DOI: 10.1007/s13369-012-0313-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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72
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Wang D, Cai R, Sharma S, Jirak J, Thummanapelli SK, Akhmedov NG, Zhang H, Liu X, Petersen JL, Shi X. “Silver Effect” in Gold(I) Catalysis: An Overlooked Important Factor. J Am Chem Soc 2012; 134:9012-9. [PMID: 22563621 DOI: 10.1021/ja303862z] [Citation(s) in RCA: 377] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dawei Wang
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
| | - Rong Cai
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
| | - Sripadh Sharma
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
| | - James Jirak
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
| | - Sravan K. Thummanapelli
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
| | - Novruz G. Akhmedov
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
| | - Hui Zhang
- Mechanical and Aerospace Engineering
Department, West Virginia University, Morgantown,
West Virginia 26506, United States
| | - Xingbo Liu
- Mechanical and Aerospace Engineering
Department, West Virginia University, Morgantown,
West Virginia 26506, United States
| | - Jeffrey L. Petersen
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
| | - Xiaodong Shi
- C. Eugene
Bennett Department
of Chemistry, West Virginia University,
Morgantown, West Virginia 26506, United States
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73
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Chen Y, Chen M, Liu Y. Gold-Catalyzed Cascade Cyclizations of 1,6-Diynyl Carbonates to Benzo[b]fluorenes Involving Arylation of Oxocarbenium Ion Intermediates and Decarboxylative Etherification. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201799] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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74
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Chen Y, Chen M, Liu Y. Gold-catalyzed cascade cyclizations of 1,6-diynyl carbonates to benzo[b]fluorenes involving arylation of oxocarbenium ion intermediates and decarboxylative etherification. Angew Chem Int Ed Engl 2012; 51:6493-7. [PMID: 22593083 DOI: 10.1002/anie.201201799] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 04/13/2012] [Indexed: 11/07/2022]
Abstract
Rearranged: The described gold-catalyzed cycloisomerizations give access to highly substituted benzo[b]fluorenes under mild reaction conditions (see scheme). Experimental results indicate that the in situ formed oxocarbenium ion intermediates, derived from gold-catalyzed 3,3-rearrangement and 6-endo-dig cyclization, undergo intramolecular arylation and subsequent decarboxylative etherification to furnish the final ether products.
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Affiliation(s)
- Yifeng Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, PR China
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75
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Cho EJ. Factors Controlling the Equilibrium of Pt-Catalyzed [1,2]- versus [1,3]-Acyloxy Migration. Chemistry 2012; 18:4495-8. [DOI: 10.1002/chem.201103799] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Indexed: 11/11/2022]
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76
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Rhodium(I)-catalyzed [3+2] intramolecular cycloaddition of alkylidenecyclopropane–propargylic esters. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.084] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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77
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Zhang DH, Zhang Z, Shi M. Transition metal-catalyzed carbocyclization of nitrogen and oxygen-tethered 1,n-enynes and diynes: synthesis of five or six-membered heterocyclic compounds. Chem Commun (Camb) 2012; 48:10271-9. [DOI: 10.1039/c2cc34739c] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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78
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Zhang DH, Du K, Shi M. Gold(i)-catalyzed intramolecular hydroamination and ring-opening of sulfonamide-substituted 2-(arylmethylene)cyclopropylcarbinols. Org Biomol Chem 2012; 10:3763-6. [DOI: 10.1039/c2ob25512j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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79
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Titanium(IV) chloride-mediated intramolecular ring enlargement of methylenecyclopropanes with propargylic esters: a concise synthesis of bicyclo[4.2.0]oct-5-ene derivatives. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.124] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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80
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Wu L, Shi M. Yb(OTf)3- or AuI-Catalyzed Domino Intramolecular Hydroamination and Ring-Opening of Sulfonamide-Substituted 1,1-Vinylidenecyclopropanediesters. Chemistry 2011; 17:13160-5. [DOI: 10.1002/chem.201102159] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Indexed: 11/11/2022]
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81
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Wang D, Zhang Y, Harris A, Gautam LNS, Chen Y, Shi X. Triazole-Gold-Promoted, Effective Synthesis of Enones from Propargylic Esters and Alcohols: A Catalyst Offering Chemoselectivity, Acidity and Ligand Economy. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100314] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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82
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83
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Xing D, Yang D. Highly efficient gold(I)-catalyzed Overman rearrangement in water. Beilstein J Org Chem 2011; 7:781-5. [PMID: 21804872 PMCID: PMC3135174 DOI: 10.3762/bjoc.7.88] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Accepted: 05/24/2011] [Indexed: 12/03/2022] Open
Abstract
A highly efficient gold(I)-catalyzed Overman rearrangement of allylic trichloroacetimidates to allylic trichloroacetamides in water is reported. With this environmentally benign and scalable protocol, a series of C3-alkyl substituted allylic trichloroacetamides were synthesized in good to high yields.
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Affiliation(s)
- Dong Xing
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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84
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Wang D, Zhang Y, Cai R, Shi X. Triazole-Au(I) complex as chemoselective catalyst in promoting propargyl ester rearrangements. Beilstein J Org Chem 2011; 7:1014-20. [PMID: 21915202 PMCID: PMC3167893 DOI: 10.3762/bjoc.7.115] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2011] [Accepted: 07/06/2011] [Indexed: 11/30/2022] Open
Abstract
Triazole–Au (TA–Au) catalysts were employed in several transformations involving propargyl ester rearrangement. Good chemoselectivity was observed, which allowed the effective activation of the alkyne without affecting the reactivity of the allene ester intermediates. These results led to the investigation of the preparation of allene ester intermediates with TA–Au catalysts under anhydrous conditions. As expected, the desired 3,3-rearrangement products were obtained in excellent yields (generally >90% yields with 1% loading). Besides the typical ester migrating groups, carbonates and carbamates were also found to be suitable for this transformation, which provided a highly efficient, practical method for the preparation of substituted allenes.
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Affiliation(s)
- Dawei Wang
- Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA
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85
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Lebœuf D, Simonneau A, Aubert C, Malacria M, Gandon V, Fensterbank L. Gold-Catalyzed 1,3-Acyloxy Migration/5-exo-dig Cyclization/1,5-Acyl Migration of Diynyl Esters. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101179] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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86
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Lebœuf D, Simonneau A, Aubert C, Malacria M, Gandon V, Fensterbank L. Gold-catalyzed 1,3-acyloxy migration/5-exo-dig cyclization/1,5-acyl migration of diynyl esters. Angew Chem Int Ed Engl 2011; 50:6868-71. [PMID: 21671317 DOI: 10.1002/anie.201101179] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Indexed: 11/10/2022]
Affiliation(s)
- David Lebœuf
- UPMC Paris 06, IPCM (UMR CNRS 7201), 4 place Jussieu, 75252 Paris cedex 05, France
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87
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Luo Y, Zhang G, Hwang ES, Wilcoxon TA, Zhang L. Gold-catalyzed regioselective oxidation of terminal allenes: formation of α-methanesulfonyloxy methyl ketones. Beilstein J Org Chem 2011; 7:596-600. [PMID: 21647259 PMCID: PMC3107496 DOI: 10.3762/bjoc.7.69] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 04/15/2011] [Indexed: 11/24/2022] Open
Abstract
Synthetically useful α-methanesulfonyloxy methyl ketones are readily prepared in one-step from terminal allenes in fair to good yields. The chemistry relies on a gold-catalyzed intermolecular oxidation of the 1,2-diene unit using 3,5-dichloropyridine N-oxide as the oxidant. The reaction tolerates a range of functional groups and shows excellent regioselectivity.
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Affiliation(s)
- Yingdong Luo
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California, 93106, USA
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88
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Luo T, Dai M, Zheng SL, Schreiber SL. Syntheses of α-pyrones using gold-catalyzed coupling reactions. Org Lett 2011; 13:2834-6. [PMID: 21534543 PMCID: PMC3103191 DOI: 10.1021/ol200794w] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
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Sequential alkyne activation of terminal alkynes and propiolic acids by gold(I) catalysts yields compounds having α-pyrone skeletons. Novel cascade reactions involving propiolic acids are reported that give rise to α-pyrones with different substitution patterns.
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Affiliation(s)
- Tuoping Luo
- Howard Hughes Medical Institute, Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, United States
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89
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Zhao M, Kuang CX, Cheng XZ, Yang Q. Iron-catalyzed ketonization of 2-aryl-1,1-dibromoalkenes with KOAc: Synthesis of α-acetoxy aryl ketones via a Michael-like addition process. CHINESE CHEM LETT 2011. [DOI: 10.1016/j.cclet.2010.11.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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90
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Wang D, Gautam LNS, Bollinger C, Harris A, Li M, Shi X. 1,2,3-Triazole Bound Au(I) (TA-Au) as Chemoselective Catalysts in Promoting Asymmetric Synthesis of Substituted Allenes. Org Lett 2011; 13:2618-21. [PMID: 21504205 DOI: 10.1021/ol200714h] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dawei Wang
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States, and Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Ji’nan, Shandong, 250012, PR China
| | - Lekh Nath S. Gautam
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States, and Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Ji’nan, Shandong, 250012, PR China
| | - Cynthia Bollinger
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States, and Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Ji’nan, Shandong, 250012, PR China
| | - Aleksandra Harris
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States, and Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Ji’nan, Shandong, 250012, PR China
| | - Minyong Li
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States, and Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Ji’nan, Shandong, 250012, PR China
| | - Xiaodong Shi
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States, and Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Ji’nan, Shandong, 250012, PR China
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91
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Zhang X, Fu C, Ma S. Highly Stereoselective Facile Synthesis of 2-Acetoxy-1,3(E)-alkadienes via a Rh(I)-Catalyzed Isomerization of 2,3-Allenyl Carboxylates. Org Lett 2011; 13:1920-3. [DOI: 10.1021/ol200198z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaobing Zhang
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, People’s Republic of China
| | - Chunling Fu
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, People’s Republic of China
| | - Shengming Ma
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, People’s Republic of China
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92
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Zhang DH, Yao LF, Wei Y, Shi M. Gold(I)-catalyzed cycloisomerization of 1,6-diynes: synthesis of 2,3-disubstituted 3-pyrroline derivatives. Angew Chem Int Ed Engl 2011; 50:2583-7. [PMID: 21370342 DOI: 10.1002/anie.201006969] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2010] [Indexed: 11/10/2022]
Affiliation(s)
- Di-Han Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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93
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Zhang DH, Yao LF, Wei Y, Shi M. Gold(I)-Catalyzed Cycloisomerization of 1,6-Diynes: Synthesis of 2,3-Disubstituted 3-Pyrroline Derivatives. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006969] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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94
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Shu D, Li X, Zhang M, Robichaux PJ, Tang W. Synthesis of highly functionalized cyclohexenone rings: rhodium-catalyzed 1,3-acyloxy migration and subsequent [5+1] cycloaddition. Angew Chem Int Ed Engl 2011; 50:1346-9. [PMID: 21290509 PMCID: PMC3131693 DOI: 10.1002/anie.201006881] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Indexed: 11/05/2022]
Affiliation(s)
- Dongxu Shu
- Department of Chemistry, University of Wisconsin Madison, WI 53706-1322 (USA)
| | - Xiaoxun Li
- The School of Pharmacy, University of Wisconsin Madison, WI 53705-2222 (USA)
| | - Min Zhang
- The School of Pharmacy, University of Wisconsin Madison, WI 53705-2222 (USA)
| | | | - Weiping Tang
- The School of Pharmacy, University of Wisconsin Madison, WI 53705-2222 (USA)
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95
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Ohshima T, Nakahara Y, Ipposhi J, Miyamoto Y, Mashima K. Direct substitution of the hydroxy group with highly functionalized nitrogen nucleophiles catalyzed by Au(iii). Chem Commun (Camb) 2011; 47:8322-4. [DOI: 10.1039/c1cc12760h] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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96
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Faza ON, de Lera AR. DFT-Based Mechanistic Insights into Noble Metal-Catalyzed Rearrangement of Propargylic Derivatives: Chirality Transfer Processes. Top Curr Chem (Cham) 2011; 302:81-130. [DOI: 10.1007/128_2010_117] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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97
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Shu D, Li X, Zhang M, Robichaux PJ, Tang W. Synthesis of Highly Functionalized Cyclohexenone Rings: Rhodium-Catalyzed 1,3-Acyloxy Migration and Subsequent [5+1] Cycloaddition. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201006881] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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98
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Ghosh N, Nayak S, Sahoo AK. Gold-Catalyzed Regioselective Hydration of Propargyl Acetates Assisted by a Neighboring Carbonyl Group: Access to α-Acyloxy Methyl Ketones and Synthesis of (±)-Actinopolymorphol B. J Org Chem 2010; 76:500-11. [DOI: 10.1021/jo101995g] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nayan Ghosh
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Sanatan Nayak
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Akhila K. Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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99
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Jian TY, Shao PL, Ye S. Enantioselective [4+2] cycloaddition of ketenes and 1-azadienes catalyzed by N-heterocyclic carbenes. Chem Commun (Camb) 2010; 47:2381-3. [PMID: 21165498 DOI: 10.1039/c0cc04839a] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Optically active highly functionalized 3,4-dihydropyridin-2-ones were synthesized by N-heterocyclic carbene-catalyzed [4+2] enantioselective cycloaddition of ketenes and 1-azadienes.
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Affiliation(s)
- Teng-Yue Jian
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100, 19, 0, China
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100
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