76
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Inhülsen I, Akiyama N, Tsutsumi K, Nishiyama Y, Kakiuchi K. Highly diastereodifferentiating and regioselective [2+2]-photoreactions using methoxyaromatic menthyl cyclohexenone carboxylates. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.10.074] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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77
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Hayashi K, Tanimoto H, Zhang H, Morimoto T, Nishiyama Y, Kakiuchi K. Efficient Synthesis of α,β-Unsaturated Alkylimines Performed with Allyl Cations and Azides: Application to the Synthesis of an Ant Venom Alkaloid. Org Lett 2012; 14:5728-31. [DOI: 10.1021/ol302608q] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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78
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Mizutani Y, Tanimoto H, Morimoto T, Nishiyama Y, Kakiuchi K. Double nucleophilic N-alkylation of α-oxime-esters with Grignard reagents. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.091] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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79
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Aida S, Terao K, Nishiyama Y, Kakiuchi K, Oelgemöller M. Microflow photochemistry—a reactor comparison study using the photochemical synthesis of terebic acid as a model reaction. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.07.143] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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80
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Nishiyama Y, Wada T, Kakiuchi K, Inoue Y. Entrainer Effects on Enantiodifferentiating Photocyclization of 5-Hydroxy-1,1-diphenylpentene in Near-Critical and Supercritical Carbon Dioxide. J Org Chem 2012; 77:5681-6. [DOI: 10.1021/jo300816w] [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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81
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Yanagisawa Y, Yamaguchi H, Nishiyama Y, Morimoto T, Kakiuchi K, Tabata K, Tsutsumi K. Synthesis and evaluation of a chiral menthol functionalized silsesquioxane: application to diastereoselective [2+2] photocycloaddition. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0635-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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82
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Nishiyama Y, Wada T, Kakiuchi K, Inoue Y. Microenvironmental control of enantiodifferentiating photocyclization of 5-hydroxy-1,1-diphenylpentene through selective solvation. Chirality 2012; 24:400-5. [PMID: 22514027 DOI: 10.1002/chir.22004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Accepted: 01/16/2012] [Indexed: 11/06/2022]
Abstract
For mechanistic elucidation of the photosensitized cyclization of 5-hydroxy-1,1-diphenylpentene (1), its methyl ether (4) was synthesized as an unreactive "dummy" substrate and used as a quencher of the sensitizer fluorescence to reveal the intervention of an exciplex intermediate that was unable to detect when reactive substrate 1 was used as a quencher/reactant In the enantiodifferentiating photocyclization of 1 to 2-(diphenylmethyl)tetrahydrofuran (2) sensitized by a chiral saccharide ester of 1,4-naphthalenedicarboxylate (3), the enantiomeric excess (ee) of chiral product 2 obtained in methylcyclohexane (MCH) at 25 °C was significantly enhanced from 20% to 35% upon 10-fold dilution of the sample solution by MCH, for which the reduced solvent polarity, discouraging dissociation of the intervening radical ionic exciplex, is likely to be responsible. Further attempts to microenvironmentally control the photochirogenic reaction and enhance the product's ee through selective solvation of polar cosolvent to the diastereomeric exciplex pair in nonpolar solvent were not successful probably due to the inherently high local polarity around the exciplex of saccharide-appended 3 with alcoholic substrate 1.
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83
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Arsianti A, Tanimoto H, Morimoto T, Bahtiar A, Takeya T, Kakiuchi K. Synthesis and anticancer activity of polyhydroxylated 18-membered analogue of antimycin A3. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.01.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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84
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Fujioka M, Morimoto T, Tsumagari T, Tanimoto H, Nishiyama Y, Kakiuchi K. Rh(I)-Catalyzed Asymmetric Synthesis of 3-Substituted Isoindolinones through CO Gas-Free Aminocarbonylation. J Org Chem 2012; 77:2911-23. [DOI: 10.1021/jo300201g] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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85
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Kakiuchi K, Zhang Y, Tanimoto H, Nishiyama Y, Morimoto T. Novel Photolabile Protecting Group for Phosphate Compounds. Synlett 2012. [DOI: 10.1055/s-0031-1290326] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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86
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Morimoto T, Ikeda K, Tsumagari T, Tanimoto H, Nishiyama Y, Kakiuchi K. Rh(I)-Catalyzed Cyclocarbonylation of Enynes with Glyceraldehyde: An Available Carbonyl Source Derived from Sugar Alcohols. Synlett 2012. [DOI: 10.1055/s-0031-1290311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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87
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Kakiuchi K, Zhang Y, Tanimoto H, Nishiyama Y, Morimoto T. Synthesis of Hetarenoindanone Based on Selenium Dioxide-Promoted Direct Intramolecular Cyclization. HETEROCYCLES 2011. [DOI: 10.3987/com-11-12284] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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88
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Ikeda K, Morimoto T, Kakiuchi K. Utilization of Aldoses as a Carbonyl Source in Cyclocarbonylation of Enynes. J Org Chem 2010; 75:6279-82. [DOI: 10.1021/jo1012288] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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89
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Tsutsumi K, Terao K, Yamaguchi H, Yoshimura S, Morimoto T, Kakiuchi K, Fukuyama T, Ryu I. Diastereoselective [2 + 2] Photocycloaddition of Chiral Cyclic Enone and Cyclopentene Using a Microflow Reactor System. CHEM LETT 2010. [DOI: 10.1246/cl.2010.828] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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90
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Tsutsumi K, Sakai H, Sakonaka K, Yabukami T, Takahashi Y, Nakagai Y, Morimoto T, Tabata K, Kakiuchi K. Mono‐ or Diplatinum Complexes Containing a π‐Conjugated Pentadiynyl Ligand. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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91
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Tsutsumi K, Yanagisawa Y, Furutani A, Morimoto T, Kakiuchi K, Wada T, Mori T, Inoue Y. Diastereodifferentiating the [2+2] Photocycloaddition of Ethylene to Arylmenthyl Cyclohexenonecarboxylates: Stacking-Driven Enhancement of the Product Diastereoselectivity That Is Correlated with the Reactant Ellipticity. Chemistry 2010; 16:7448-55. [DOI: 10.1002/chem.201000429] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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92
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Makado G, Morimoto T, Sugimoto Y, Tsutsumi K, Kagawa N, Kakiuchi K. Highly Linear-Selective Hydroformylation of 1-Alkenes using Formaldehyde as a Syngas Substitute. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900713] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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93
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Nomoto A, Kido A, Kakiuchi K, Mitani I, Tatsumi M, Ogawa A. Hydrophilic polymer supported nanoparticles prepared from samarium trichloride and lanthanum trichloride in liquid-phase. RESEARCH ON CHEMICAL INTERMEDIATES 2009. [DOI: 10.1007/s11164-009-0084-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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94
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Yamazaki S, Morikawa S, Miyazaki K, Takebayashi M, Yamamoto Y, Morimoto T, Kakiuchi K, Mikata Y. Zinc-Catalyzed Reactions of Ethenetricarboxylates with 2-(Trimethylsilylethynyl)anilines Leading to Bridged Quinoline Derivatives. Org Lett 2009; 11:2796-9. [DOI: 10.1021/ol900960q] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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95
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Morimoto T, Yamasaki K, Hirano A, Tsutsumi K, Kagawa N, Kakiuchi K, Harada Y, Fukumoto Y, Chatani N, Nishioka T. Rh(I)-Catalyzed CO Gas-Free Carbonylative Cyclization Reactions of Alkynes with 2-Bromophenylboronic Acids Using Formaldehyde. Org Lett 2009; 11:1777-80. [DOI: 10.1021/ol900327x] [Citation(s) in RCA: 126] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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96
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Sakai H, Tsutsumi K, Morimoto T, Kakiuchi K. One-Pot/Four-Step/Palladium-Catalyzed Synthesis of Indole Derivatives: The Combination of Heterogeneous and Homogeneous Systems. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800405] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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97
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Sato K, Kuriyama M, Shimazawa R, Morimoto T, Kakiuchi K, Shirai R. Direct asymmetric aldol reactions catalyzed by l-proline-2,4,6-trinitroanilide. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.02.066] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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98
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Enomoto T, Morimoto T, Ueno M, Matsukubo T, Shimada Y, Tsutsumi K, Shirai R, Kakiuchi K. A novel route for the construction of Taxol ABC-ring framework: skeletal rearrangement approach to AB-ring and intramolecular aldol approach to C-ring. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.039] [Citation(s) in RCA: 5] [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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99
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Takahashi Y, Tsutsumi K, Nakagai Y, Morimoto T, Kakiuchi K, Ogoshi S, Kurosawa H. Mono- and Dipalladium Movement on the π-Conjugated Five-Carbon Chain. Organometallics 2008. [DOI: 10.1021/om700909k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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100
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Kitani S, Sugawara K, Tsutsumi K, Morimoto T, Kakiuchi K. Synthesis and characterization of thiochromone S,S-dioxides as new photolabile protecting groups. Chem Commun (Camb) 2008:2103-5. [DOI: 10.1039/b801860j] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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