Papers - YAMAMOTO, Yoshihiko
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The Cp2TiPh-Mediated Reductive Radical cyclization of Cyanoketones and Related Reactions. Efficient Trapping of Ketyl Radicals by Cp2TiPh-Coordinated Polar Multiple bonds Reviewed
Yoshihiko Yamamoto, Daisuke Matsumi, Reiko Hattori, and Kenji Itoh
the Journal of Organic Chemistry Vol. 64 ( 9 ) page： 3224-3229 1999.4
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Ruthenium-Catalyzed Highly Efficient Intramolecular Olefin Coupling of α,ω-Dienes. Facile and Regioselective Synthesis of exo-Methylenecyclopentanes
Ruthenium-Catalyzed Highly Efficient Intramolecular Olefin Yoshihiko Yamamoto, Naoki Ohkoshi, Mitsutosi Kameda, and Kenji Itoh
the Journal of Organic Chemistry Vol. 64 ( 7 ) page： 2178-2179 1999.4
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Cp*Ru(cod)Cl-Catalyzed [2+2+2] Cycloaddition of 1,6-Heptadiynes with Allylic Ethers. A Decisive Role of Coordination to the Ether Oxygen Atom Reviewed
Yoshihiko Yamamoto, Hideaki Kitahara, Ryuji Ogawa, and Kenji Itoh
the Journal of Organic Chemistry Vol. 63 ( 26 ) page： 9610-9611 1998.12
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Ruthenium-Catalyzed Tandem [2+2+2]/[4+2] Cycloaddition of 1,6-Heptadiyne with Norbornene Reviewed
Yoshihiko Yamamoto, Hideaki Kitahara, Reiko Hattori, and Kenji Itoh
Organometallics Vol. 17 ( 10 ) page： 1910-1912 1998.5
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Cp2TiPh-coordinated cyano and ester groups as efficient ketyl radical acceptors in the reductive radical cyclization of γ-and δ-cyano ketones and δ-keto esters Reviewed
Yoshihiko Yamamoto, Daisuke Matsumi, and Kenji Itoh
Chemical Communications ( 8 ) page： 875-876 1998.4
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Formation of 2-[1-(Trimethylsilyl)alkylidene]-4-cyclopentene-1,3-dione from Lewis Acid-Catalyzed Reaction of Cyclobutenedione Monoacetal with Alkynylsilane: Novel Cationic 1,2-Silyl Migrative Ring Opening and Subsequent 5-Exo-Trig Ring Closure Reviewed
The Journal of Organic Chemistry Vol. 62 ( 5 ) page： 1292-1298 1997.3
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スクアリン酸を合成素子とする多官能型炭素および複素環化合物の高選択的合成
有機合成化学協会誌 Vol. 55 ( 9 ) page： 785 1997
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Study of 5-Endo Cyclization of 5-Oxapenta-2,4-dienoyl Radical and Related Radicals by ab Initio Calculations. Unusual Nonradical Cyclization Mechanism Reviewed
The Journal of Organic Chemistry Vol. 61 ( 26 ) page： 9264-9271 1996.12
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Synthesis of Phenolic Biaryls and p-Terphenyls and Their Heteroaromatic Analogs via a Cycloaddition Route Using 4-Aryl-2-silyloxybuta-1,3-dienes and Electron Deficient Alkynes Reviewed
Synthesis ( 8 ) page： 949-953 1996.8
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New Method for Derivatization of Squaric Acid to Highly Substituted Cyclobutenones: Lewis Acid-Catalyzed Reaction of Cyclobutene-1,2-dione Monoacetal and Its Vinylog with Unsaturated Organosilanes, and Subsequent Ring Transformation of the Adducts Reviewed
Bulletin of the Chemical Society of Japan Vol. 69 ( 5 ) page： 1353-1362 1996.5
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Radical-Mediated Ring Enlargement of Cyclobutenones: New Synthetic Potential of Squaric Acid Reviewed
Journal of the American Chemical Society Vol. 117 ( 38 ) page： 9653-9661 1995.9
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BF3-Catalyzed Reaction of Cyclobutene-1,2-dione Monoacetal and Its Vinylog with Allylsilanes. Regioselective Synthesis of 4-Allyl-4-ethoxy-cyclobutenones from Squaric Acid and Their Conversion to Bi- and Tricycloalkanones Reviewed
Chemistry Letters ( 7 ) page： 525-526 1995.7
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Unexpected Ionic Rearragement of Hypoiodite. Ring-Expansion of 4-Alkynyl-4-hydroxycyclobutenone to Iodomethylenecyclopentene-1,3-dione Reviewed
Tetrahedron Letters Vol. 36 ( 31 ) page： 5539-5542 1995.7
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Triethyloxonium Tetrafluoroborate Mediated Addition Reaction of Unsaturated Organosilanes to Squaric Acid Esters Reviewed
Synthesis ( 5 ) page： 571-576 1995.5
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Oxidative Rearrangement of 4-Hydroxy-2-cyclobutenone. A New Route to Highly Substituted Furanones from Squaric Acid Reviewed
The Journal of Organic Chemistry Vol. 59 ( 17 ) page： 4707-4709 1994.8
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Ring Transformation of 4-Acylmethyl-2-chloro-4-hydroxy-2-cyclobutenone to γ-Acylmethylenetetronate by Thermal Rearrangement: New Synthetic Aspect of Squaric Acid as a C_4 _-Synthon Reviewed
Tetrahedron Vol. 50 ( 26 ) page： 7783-7798 1994.6
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Cyanohydrins from Squaric Acid Ester with Trimethylsilyl Cyanide and Their Ring Opening Reactions Reviewed
Synlett ( 10 ) page： 781-783 1993.10
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Synthesis of γ-Acylmethylenetetronates from Squaric Acid Reviewed
Tetrahedron Letters Vol. 34 ( 30 ) page： 4807-4810 1993.7
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Synthesis of Squaric Acid Derivatives by Lewis Acid-catalysed Reaction of its Dichloride, Methyl Ester Chloride, Diethylamide Chloride, and Ethyl Diester with Unsaturated Organosilanes: New Method for C-C Bond Formation on Cyclobutenedione Reviewed
Journal of Chemical Society, Perkin Transactions 1 ( 2 ) page： 263-271 1993.1
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Catalysed 1,2- vs 1,4-Addition of 3,4-Dichlorocyclobut-3-ene-1,2-dione with Unsaturated Organosilanes Reviewed
Journal of Chemical Society, Perkin Transactions 1 ( 9 ) page： 2272-2273 1991.9