Faculty Information, Institute for Chemical Research, Kyoto University   [ English | Japanese ]


YAMAGO, Shigeru

Division of Materials Chemistry - Polymer Controlled Synthesis -
Professor
Doctor of Science
URL:
E-mail: yamago@scl.kyoto-u.ac.jp
Tel: 0774-38-3060
Fax: 0774-36-3067
Academic career
    1991.3 Graduated from Dr. Course, Tokyo Institute of Technology
    1991.3 D. Sc, Tokyo Institute of Technology
    1991.4 Assistant Professor, Tokyo Institute of Technology
    1995.4 Assistant Professor, Kyoto University
    1997.5 Associate Professor, Kyoto University
    2003.4 Professor, Osaka City University
    2006.4 Professor, Kyoto University
Research field
    Synthetic Organic Chemistry Synthetic Polymer Chemistry
Current research
  1. 1. Development of novel synthetic radical reaction and living radical polymerization
  2. 2. Development of highly controlled radical reaction using organoheteroatom compounds
  3. 3. Development of oligosaccharide synthesis based on control of carbocationic speceis
Selected publications
  1. Yamago, S.; Yamada, T.; Togai, M.; Ukai, Y.; Kayahara, E.; Pan, N., Synthesis of Structurally Well-Defined Telechelic Polymers by Organostibine-Mediated Living Radical Polymerization. In Situ Generation of Functionalized Transfer Agents and Selective w-End Group Transformations Chem. Eur. J. 15, 1018-1029 (2009).
  2. Yamago, S.; Ukai, Y.; Matsumoto, A.; Nakamura, Y., Organotellurium-Mediated Controlled/Living Radical Polymerization Initiated by Direct C-Te Bond Photolysis J. Am. Chem. Soc. 131, 2100-2101 (2009).
  3. Kayahara, E.; Yamago, S., Development of an Arylthiobismuthine Cocatalyst in Organobismuthine-Mediated Living Radical Polymerization. Applications for Synthesis of Ultrahigh Molecular Weight Polystyrenes and Polyacrylates J. Am. Chem. Soc. 131, 2508-2513 (2009).
  4. Yamago, S.; Kayahara, E.; Yamada, H., Synthesis of Structurally Well-Controlled w-Vinylidene Functionalized Poly(alkyl Methacrylate)s and Polymethacrylonitrile by Organotellurium, Organostibine, and Organobismuthine-Mediated Living Radical Polymerizations React. Function. Polym. 69, 416-423 (2009).
  5. Hasegawa, J.; Kanamori, K.; Nakanishi, K.; Hanada, T.; Yamago, S., Pore Formation in Poly(divinylbenzene) Networks Derived from Organotellurium-Mediated Living Radical Polymerization Macromolecuels 42, 1270-1277 (2009).
  6. Hasegawa, J.; Kanamori, K.; Nakanishi, K.; Hanada, T.; Yamago, S., Rigid Crosslinked Polyacrylamide Monoliths with Well-defined Macropores Synthesized by Living Radical Polymerization Macromol. Rapid. Commun. 30, 986-990 (2009).
  7. Yamago, S., Precision Polymer Synthesis by Degenerative Transfer Controlled/Living Radical Polymerization Using Organotellurium, Organostibine, and Organobismuthine Chain Transfer Agents Chem. Rev. , in press. (2009).
  8. Kayahara, E.; Yamago, S.; Kwak, Y.; Goto, A.; Fukuda, T., Optimization of Organotellurium Transfer Agents for Highly Controlled Living Radical Polymerization Macromolecules 41, 527-529 (2008).
  9. Yamada, T.; Mishima, E.; Ueki, K.; Yamago, S., Phenyltellanyl Triflate (PhTeOTf) as a Powerful Tellurophilic Activator in the Friedel-Crafts Reaction Chem. Lett. , 650-651 (2008).
  10. Mishima, E.; Matsumiya, Y.; Yamago, S.; Watanabe, H., Kinetics of Living Anionic Polymerization of Polystyryl Lithium in Cyclohexane Polym. J. 40, 749-762 (2008).
  11. Yamago, S.; Matsumoto, A., Arylthiols as Highly Chemoselective and Environmentally Benign Radical Reducing Agents J. Org. Chem. 73, 7300-7304 (2008).
  12. Yusa, S.; Yamago, S.; Sugahara, M.; Morikawa, S.; Yamamoto, T.; Morishima, Y., Thermo-Responsive Diblock Copolymers of Poly(N-isopropylacrylamide) and Poly(N-vinyl-2-pyrroridone) Synthesized via Organotellurium-Mediated Controlled Radical Polymerization (TERP) Macromolecules 40, 5907-5915 (2007).
  13. Kwak, Y.; Tezuka, M.; Goto, A.; Fukuda, T.; Yamago, S., Kinetic Study on Role of Ditelluride for Organotellurium-Mediated Living Radical Polymerization (TERP) Macromolecules 40, 1881-1885 (2007).
  14. Yamago, S.; Kayahara, E.; Kotani, M.; Ray, B.; Kwak, Y.; Goto, A.; Fukuda, T., Highly Controlled Living Radical Polymerization through Dual Activation of Organobismuthines Angew. Chem. Int. Ed. 46, 1304-1306 (2007).
  15. Yamago, S.; Iida, K.; Yoshida, J., Experimental and Theoretical Studies on Formal s-Bond Metathesis of Silyl Tellurides with Alkyl Halides J. Organomet. Chem. 692, 664-670 (2007).
  16. Mutoh, Y.; Murai, T.; Yamago, S., Synthesis and Properties of Telluroamides J. Organomet. Chem. 692, 129-135 (2997).
  17. 山子茂 , 新しい精密重合に向けた元素化学的アプローチ 未来材料 7, 36-40 (2007).
  18. Yamada, T.; Takemura, K.; Yoshida, J.; Yamago, S., Dialkylphosphates as Stereo-Directing Protective Groups in Oligosaccharide Synthesis Angew. Chem. Int. Ed. 45, 7575-7578 (2006).
  19. Ray, B.; Kotani, M.; Yamago, S., Highly Controlled Synthesis of Poly-N-Vinylpyrrolidone and Its Block Copolymers by Organostibine-Mediated Living Radical Polymerization Macromolecules 39, 5259-5265 (2006).
  20. Kwak, Y.; Goto, A.; Fukuda, T.; Kobayashi, Y.; Yamago, S., A Systematic Study on Activation Processes in Organotellurium-Mediated Living Radical Polymerizations (TERPs) of Styrene, Methyl Methacrylate, Methyl Acrylate, and Vinyl Acetate Macromolecules 39, 4671-4679 (2006).
  21. Yamago, S., The Development of Organotelluriu-Mediated and Organostibine-Mediated Living Radical Polymerization Reactions J. Polym. Sci. Part A: Polym. Chem. 44, 1-12 (2006).
  22. Yamada, T.; Kinjyo, S.; Yoshida, J.; Yamago, S., Highly Efficient Synthesis of Oligo-N-acetylglucosamines by Iterative Glycosylation of Di- and Tetrachlorophtaloyl Protected Thioglycosides Chem. Lett. 34, 1556-1557 (2005).
  23. Yamago, S.; Yamada, T.; Ito, H.; Hara, O.; Mino, Y.; Yoshida, J., Combinatorial Synthesis of Oligosaccharide Library by b-Bromoglycoside-Mediated Iterative Glycosylation of Selenoglycosides. Rapid Expansion of Molecular Diversity from Simple Building Blocks Chem. Eur. J. 11, 6159-6174 (2005).
  24. Yamago, S.; Satoh, A.; Tokuyama, H.; Fukuyama, T., Synthesis of 2,3-Dialkyl-substituted Indoles from 2-Alkenylphenylisonitriles and Imines by Silyltelluride- and Tinhydride-Mediated Sequential Radical Reactions Synlett , 1893-1896 (2005).
  25. Kwak, Y.; Goto, A.; Fukuda, T.; Yamago, S.; Ray, B., Mechanism and Kinetics of Organostibine-Mediated Living Radical Polymerization of Styrene Z. Phys. Chem. 219, 283-293 (2005).
  26. Yamago, S.; Fujita, K.; Miyoshi, M.; Kotani, M.; Yoshida, J., Stereoselective Synthesis of Multisubstituted Alkenes via Conformationally Labile Alkenyllithium Species Org. Lett. 7, 909-911 (2005).
  27. Yamago, S., Invention of Organotellurium and Organostibine Mediators for Highly Controlled Degenerative Transfer Polymerization Proc. Japan Acad. Ser. B 81, 117-128 (2005).
  28. Mutoh, Y.; Murai, T.; Yamago, S., Acyclic Telluroiminium Salts: Isolation and Characterization J. Am. Chem. Soc. 126, 16696-16697 (2004).
  29. Iida, K.; Yoshida, J.; Tada, T.; Yoshizawa, K.; Kwak, Y.; Goto, A.; Fukuda, T., 76. “Highly Versatile Organostibine Mediators for Living Radical Polymerization” J. Am. Chem. Soc. 126, 13908-13909 (2004).
  30. Yamago, S.; Yamada, T.; Maruyama, T.; Yoshida, J., Iterative Glycosylation of 2-Deoxy-2-Amino-Thioglycosides and Its Application to Combinatorial Synthesis of Linear Oligoglucosamines J. Angew. Chem. Int. Ed. 43, 2145-2148 (2004).
  31. Yamago, S., Novel Group-Transfer Radical Reactions with Organotelluriums Synlett , 1875-1890 (2004).
  32. Goto, A.; Kwak, Y.; Fukuda, T.; Yamago, S.; Iida, K.; Nakajima, M.; Yoshida, J., Mechanism-Based Invention of High-Speed Living Radical Polymerization Using Organotellurium Compounds and Azo-Initiators J. Am. Chem. Soc. 125, 8720-8721 (2003).
  33. Nakamura, M.; Wang, X. Q.; Isaka, M.; Yamago, S.; Nakamura, E., Synthesis and [3 + 2] Cycloaddition of 2,2-Dialkoxy-1-methylenecyclopropane: 6,6-Dimethyl-1-methylene-4,8-dioxaspiro[2.5]octane Org. Synth. 80, 144-157 (2003).
  34. Yamago, S.; Iida, K.; Nakajima, M.; Yoshida, J., Practical Protocols for Organotellurium-Mediated Living Radical Polymerization (TERP) by in situ Generated Initiators from AIBN and Ditellurides Macromolecules 36, 3793-3796 (2003).
  35. Yamago, S.; Miyazoe, H.; Nakayama, T.; Miyoshi, M.; Yoshida, J., A New Diversity Oriented Synthesis of a-Amino Acids Derivatives by Silyltelluride-Mediated Radical Coupling Reaction of Imines and Isonitriles Angew. Chem. Int. Ed. 42, 117-120 (2003).
  36. Yamago, S.; Iida, K.; Yoshida, J., Organotellurium Mediated Living Radical Polymerization (TERP) Advances in Controlled/Living Radical Polymerization , 631-642 (2003).
  37. Yamago, S.; Yoshida, J., Photochemical Addition of Carbohydrate Molecules CRC Handbook of Organic Photochemistry and Photobiology , 2-1 2-16 (2003).
  38. Yamago, S.; Kokubo, K.; Hara, O.; Masuda, S.; Yoshida, J., Electrochemistry of Chalcogenoglycosides. Rational Design of Iterative Glycosylation Based on Reactivity Control of Glycosyl Donors and Acceptors by Oxidation Potentials J. Org. Chem. 67, 8584-8592 (2002).
  39. Yamago, S.; Iida, K.; Yoshida, J., Tailored Synthesis of Structurally Defined Polymers by Organotellurium Mediated Living Radical Polymerization (TERP). Synthesis of Poly(meth)acrylate Derivatives and Their Di- and Triblock Copolymers J. Am. Chem. Soc. 124, 13666-13667 (2002).
  40. Yamago, S.; Hashidume, M.; Yoshida, J., A New Synthetic Route to Substituted Quinones by Radical-Mediated Coupling of Organotellurium Compounds with Quinones Tetrahedron 58, 6805-6813 (2002).
  41. Yamago, S.; Miyoshi, M.; Miyazoe, H.; Yoshida, J., Convergent Synthesis of Silylated Allylic Alcohols by a Stereoselective Domino-Sequential Radical Coupling Reaction Angew. Chem. Int. Ed. 41, 1407-1409 (2002).
  42. Yamago, S.; Iida, K.; Yoshida, J., Organotellurium Compounds as Novel Initiators for Controlled/Living Radical Polymerizations. Synthesis of Functionalized Polystyrenes and End-Group Modifications J. Am. Chem. Soc. 124, 2874-2875 (2002).
  43. Yamago, S.; Yamada, T.; Nishimura, R.; Ito, H.; Mino, Y.; Yoshida, J., A New Method for the Synthesis of Stannyl Ethers by Acid-Catalyzed Reaction of Alcohols with Allyl Tributylstanane Chem. Lett. , 152-153 (2002).
  44. Oka, H.; Yamago, S.; Yoshida, J.; Kajimoto, O., Evidences for Hydroxide Ion Catalyzed Pathway in Ester Hydrolysis in Supercritical Water Angew. Chem. Int. Ed. 41, 623-625 (2002).
  45. Yamago, S.; Iida, K.; Yoshida, J., Organotellurium Compounds as Novel Initiators for Controlled/Living Radical Polymerzations Polym. Prep. 43, 96-97 (2002).
  46. Nakamura, E.; Yamago, S., Thermal Reactions of Dipolar Trimethylenemethane Species Acc. Chem. Res. 35, 867-877 (2002).
  47. Yamago, S.; Yamada, T.; Hara, O.; Ito, H.; Mino, Y.; Yoshida, J., A New, Iterative Strategy for Oligosaccharide Synthesis Based on Highly Reactive b-Bromoglycosides Derived from Selenoglycosides Org. Lett. 3, 3867-3870 (2001).
  48. Yamago, S.; Iida, K.; Yoshida, J., A New, Practical Synthesis of Organotellurium Compounds from Organic Halides and Silyl Tellurides. Remarkable Effects of Polar Solvents and Leaving Groups Tetrahedron Lett. 42, 5061-5064 (2001).
  49. Yamago, S.; Miyazoe, H.; Goto, R.; Hashidume, M.; Sawazaki, T.; Yoshida, J., Synthetic and Theoretical Studies on Group-transfer Imidoylation of Organotellurium Compounds. Remarkable Reactivity of Isonitriles in Comparison with Carbon Monoxide in Radical-Mediated Reactions J. Am. Chem. Soc. 123, 3697-3705 (2001).
  50. Yamago, S.; Miyazoe, H.; Iida, K.; Yoshida, J., Highly Efficient and Chemoselective Reductive Bis-silylation of Quinones by Silyl Tellurides Org. Lett. 2, 3671-3673 (2000).
  51. Yamago, S.; Hashidume, M.; Yoshida, J., Radical-Mediated Synthesis of Substituted Quinones with Organotellurium Compounds Chem. Lett. , 1234-1235 (2000).
  52. Yamago, S.; Miyazoe, H.; Sawazaki, T.; Goto, R.; Yoshida, J., New Synthesis of a-Acylimines and a-Acylamide by Imidoylation of Acyl Radicals with Isocyanides Tetrahedron. Lett. 41, 7517-7520 (2000).
  53. Miyazoe, H.; Yamago, S.; Yoshida, J., New Radical-Mediated Group-Transfer Three Component Coupling of Silyltellurides, Carbonyl Compounds, and Isocyanides Angew. Chem. Int. Ed. 39, 3669-3671 (2000).
  54. Nakamura, M.; Toganoh, M.; Wang, X. Q.; Yamago, S.; Nakamura, E., Intramoleculer [3 + 2] Cycloaddition Reactions of Dipolar Trimethylenemethane Chem. Lett. , 664-665 (2000).
  55. Yamago, S.; Yanagawa, M.; Nakamura, E., Thermal Hetero [3 + 2] Cycloaddition of Dipolar Trimethylenemethane to N-Sulfonyl and N-Acyl Imines. Synthesis of g-Amino Acid Derivatives Chem. Lett. , 879-880 (1999).
  56. Yamago, S.; Miyazoe, H.; Goto, R.; Yoshida, J., Radical Mediated Imidoylation of Telluroglycosides. Insertion of Isonitriles into Glycosidic CarbonTellurium Bond Tetrahedron Lett. 40, 2347-2350 (1999).
  57. Yamago, S.; Miyazoe, H.; Yoshida, J., Synthesis of Vinylic C-Glycosides from Telluroglycosides. Addition of Photochemically and Thermally Generated Glycosyl Radicals to Alkynes Tetrahedron Lett. 40, 2343-2346 (1999).
  58. Yamago, S.; Miyazoe, H.; Yoshida, J., Reversible Generation of Glycosyl Radicals from Telluroglycosides under Photochemical and Thermal Conditions Tetrahedron Lett. 40, 2339-2342 (1999).
  59. Yamago, S.; Kokubo, K.; Murakami, H.; Mino, Y.; Hara, O.; Yoshida, J., Glycosylation with Telluroglycosides. Stereoselective Construction of a- and b-Anomers Tetrahedron Lett. 39, 7905-7908 (1998).
  60. Yamago, S.; Furukawa, M.; Azuma, A.; Yoshida, J., Synthesis of Optically Active Dendritic Binaphthols and Their Metal Complexes for Asymmetric Catalysis Tetrahedron Lett. 39, 3787-3786 (1998).
  61. Yamago, S.; Nakamura, M.; Wang, X.-Q.; Yanagawa, M.; Tokumitsu, S.; Nakamura, E., Thermal Hetero [3 + 2] Cycloaddition of Dipolar Trimethylenemethane to O-Alkyl Oximes. Straightforward Synthetic Routes to Substituted Pyrrolidines and Prolines J. Org. Chem. 63, 1694-1703 (1998).
  62. Nakamura, E.; Yu, Y.; Mori, S.; Yamago, S., Unusually Stable Organomercury Hydrides and Radicals Angew. Chem. Int. Ed. Engl. 36, 374-376 (1997).
  63. Yamago, S.; Kokubo, K.; Yoshida, J., O-Glycosidation of Telluroglycoside by Electrochemical Oxidation J. Chem. Lett. , 111-112 (1997).
  64. Yamago, S.; Takeichi, A.; Nakamura, E., Synthesis of Dimethyleneketene Acetals and Their [2 + 2] Cycloaddition to Olefins and [60]Buckminsterfullerene as Cyclopropanecarboxylate Synthons Synthesis , 1380-1388 (1996).
  65. Yamago, S.; Kokubo, K.; Masuda, S.; Yoshida, J., Practical Synthesis of Telluroglycosides Synlett , 929-930 (1996).
  66. Nakamura, E.; Tokuyama, H.; Yamago, S.; Shiraki, T.; Sugiura, Y. Bull. Chem. Soc., Jpn.., 32. "Biological Activity of Water-Soluble Fullerenes. Structurel Dependence of DNA Cleavage, Cytotoxicity and Enzyme Inhibitory Activities Including HIV-Protease Inhibition" Bull. Chem. Soc., Jpn. 69, 2143-2151 (1996).
  67. Irie, K.; Nakamura, Y.; Ohigashi, H.; Tokuyama, H.; Yamago, S.; Nakamura, E., Photocytotoxicity of Water-soluble Fullerene Derivatives Biosci. Biotech. Biochem. 60, 1359-1361 (1996).
  68. Yamago, S; Nakamura, E., Cycloaddition of Dipolar Trimethylenemethane to C70 Promoted by a Trace Amount of Water Chem. Lett. , 395-396 (1996).
  69. Yamago, S.; Yanagawa, M.; Mukai, H.; Nakamura, E., Tertiary Phosphines, P-Chiral Phosphinites and Phosphonic Acid Esters Bearing Fullerene Subtituent. Metal Complexes and Redox Properties Tetrahedron 52, 5091-5102 (1996).
  70. Yamago, S.; Ejiri, S.; Nakamura, E., A Concise Synthetic Route to Cyclopentenes by [3 + 2] Cycloaddition of Dipolar Trimethylenemethane to Acetylenes Angew. Chem. Int. Ed. Engl. 34, 2154-2155 (1995).
  71. Yamada, T.; Uekusa, H.; Ohashi, Y.; Yamago, S.; Wang, X.-Q.; Nakamura, E., cis- and trans-Dimethyl Spiro[(4',4'-dimethyl-2',6'-dioxacyclohexane)-1',3- (4-methylenebicyclo[3.3.0]octane]-2,2-dicarboylate Acta Cryst. C51, 1137-1139 (1995).
  72. Yamago, S.; Tokuyama, H.; Nakamura, E.; Kikuchi, K.; Kananishi, S.; Sueki, K.; Nakahara, H.; Enomoto, S.; Ambe, F., In Vivo Biological Behavior of Water-Misible Fullerenes. 14C-Labeling, Absorption, Distribution, Excretion and Acute Toxicity Chem. Biology 2, 385-389 (1995).
  73. Matsumoto, M.; Tachibana, H.; Azumi, R.; Tanaka, M.; Nakamura, T.; Yunome, G.; Abe, M.; Yamago, S.; Nakamura, E., Langmuir-Blogett Film of Amphilic C60 Carboxylic Acid Langmuir 11, 660-665 (1995).
  74. Yamago, S.; Yanagawa, M.; Nakamura, E., Tertiary Phosphines and P-Chiral Phosphinites Bearing Fullerene Subtituent J. Chem.Soc., Chem. Commun. , 2093-2094 (1994).
  75. Yamago, S.; Ejiri, S.; Nakamura, E., Hydrostannation of Cyclopropene. Strain-Driven Radical Addition Reaction Chem. Lett. , 1889-1892 (1994).
  76. Yamago, S.; Takeichi, A.; Nakamura, E., Synthesis and [2 + 2] Cycloaddition of Dimethyleneketene Acetal. Reaction with C60 and Facile Hydrolyisis of the C-C Bond Connected to C60 J. Am. Chem. Soc. 116, 1123-1124 (1994).
  77. Yamago, S.; Yanagawa, M.; Nakamura, E., Tertiary Phosphines and P-Chiral Phosphinites Bearing Fullerene Substituent Fullerene: Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials , 670 (1994).
  78. Yamago, S.; Tokuyama, H.; Nakamura, E.; Prato, M.; Wudl, F., Chemical Derivatization of Organofullerenes through Oxidation, Reduction, C-O and C-C Bond Forming Reactions J. Org. Chem. 58, 4796-4798 (1993).
  79. Tokuyama, H.; Yamago, S.; Nakamura, E.; Shiraki, T.; Sugiura, Y., Photo-induced Biological Activity of Fullerene Carboxylic Acid J. Am. Chem. Soc. 115, 7918-7919 (1993).
  80. Yamago, S.; Ejiri, S,; Nakamura, M.; Nakamura, E., A Single Electron Transfer Pathway in the [3 + 2] Cycloaddition of Dipolar Trimethylenemethane with Olefins J. Am. Chem. Soc. 115, 5344-5345 (1993).
  81. Prato, M.; Suzuki, T.; Foroudian, H.; Li, Q.; Khemani, K.; Wudl, F.; Leonetti, J.; Little, R. D.; White, T.; Rickborn, B.; Yamago, S.; Nakamura, E., [3 + 2] and [4 + 2] Cycloaddition of C60 J. Am. Chem. Soc. 115, 1594-1595 (1993).
  82. Yamago, S.; Tokuyama, H.; Nakamura, E.; Prato, M.; Wudl, F., Synthesis of Organic Derivatives of Fullerenes Trans. Mat. Res. Soc., Jpn (Proceedings of Advanced Materials '93) 14B, 1169 (1993).
  83. Yamago, S.; Nakamura, E., Regio-and endo-Stereoselective [3 + 2] Cycloaddition of Dipolar Trimethylenemethanes to Electron-Deficient Olefin J. Am. Chem. Soc. 114, 8707-8708 (1992).
  84. Nakamura, E.; Yamago, S.; Ejiri, S.; Dorigo, A. E.; Morokuma, K., Reversible Generation of Trimethylenemethanes by Mild Thermolysis of Dialkoxy Methylenecyclopropanes J. Am. Chem. Soc. 113, 3183-3184 (1991).
  85. Yamago, S.; Machii, D.; Nakamura, E., Simple Diasteroselectivity of the Aldol Reaction of Persubstituted Enolates. Stereoselective Construction of Quaternary Centers J. Org. Chem. 56, 2098-2106 (1991).
  86. Yamago, S.; Nakamura, E., Thermal Hetero [3 + 2] Cycloaddition Approach to Functionalized Tetrahydrofurans J. Org. Chem. 55, 5553-5555 (1990).
  87. Isaka, M.; Matsuzawa, M.; Yamago, S.; Ejiri, S.; Miyachi, Y.; Nakamura, E., Applications of Metalated Cyclopropenone Ketals in General Synthesis of Cyclopropenoes. An Efficient Synthesis of the Antibiotic Penitricin J. Org. Chem. 54, 4727-4729 (1989).
  88. Yamago, S.; Nakamura, E., Use of Methylenecyclopropanone Ketals for Cyclopentane Synthesis. A New Efficient Thermal [3 + 2] Cycloaddition J. Am. Chem. Soc. 111, 7285-7286 (1989).
  89. Yamago, S.; Nakamura, E., Synthesis of Propellanes by "Exocyclic" Transannular Cycloaddition of Olefinic Methylenecyclopropanes Tetrahedron 45, 3081-3088 (1989).
  90. Yamago, S.; Nakamura, E., Synthesis of [3.3.3] Propellanes by 'Exocyclic' Transannular Cycloaddition of Olefinic Methylenecyclopropanes J. Chem. Soc., Chem. Commun. , 1112-1113 (1988).
  91. Nakamura, E.; Yamago, S.; Machii, D.; Kuwajima, I., Stereochemistry of the Fluoride Catalyzed Aldol Reaction of Enol Silyl Ethers. Evidences for Another Non-Chelate Transitionstate Tetrahedron Lett. 29, 2207-2210 (1988).

Update: Aug 03,2012