論文 - 山本 芳彦
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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 査読有り
Yoshihiko Yamamoto, Daisuke Matsumi, Reiko Hattori, and Kenji Itoh
the Journal of Organic Chemistry 64 巻 ( 9 ) 頁： 3224-3229 1999年4月
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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 64 巻 ( 7 ) 頁： 2178-2179 1999年4月
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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 査読有り
Yoshihiko Yamamoto, Hideaki Kitahara, Ryuji Ogawa, and Kenji Itoh
the Journal of Organic Chemistry 63 巻 ( 26 ) 頁： 9610-9611 1998年12月
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Ruthenium-Catalyzed Tandem [2+2+2]/[4+2] Cycloaddition of 1,6-Heptadiyne with Norbornene 査読有り
Yoshihiko Yamamoto, Hideaki Kitahara, Reiko Hattori, and Kenji Itoh
Organometallics 17 巻 ( 10 ) 頁： 1910-1912 1998年5月
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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 査読有り
Yoshihiko Yamamoto, Daisuke Matsumi, and Kenji Itoh
Chemical Communications ( 8 ) 頁： 875-876 1998年4月
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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 査読有り
The Journal of Organic Chemistry 62 巻 ( 5 ) 頁： 1292-1298 1997年3月
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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 55 巻 ( 9 ) 頁： 785 1997年
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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 査読有り
The Journal of Organic Chemistry 61 巻 ( 26 ) 頁： 9264-9271 1996年12月
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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 査読有り
Synthesis ( 8 ) 頁： 949-953 1996年8月
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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 査読有り
Bulletin of the Chemical Society of Japan 69 巻 ( 5 ) 頁： 1353-1362 1996年5月
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Radical-Mediated Ring Enlargement of Cyclobutenones: New Synthetic Potential of Squaric Acid 査読有り
Journal of the American Chemical Society 117 巻 ( 38 ) 頁： 9653-9661 1995年9月
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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 査読有り
Chemistry Letters ( 7 ) 頁： 525-526 1995年7月
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Unexpected Ionic Rearragement of Hypoiodite. Ring-Expansion of 4-Alkynyl-4-hydroxycyclobutenone to Iodomethylenecyclopentene-1,3-dione 査読有り
Tetrahedron Letters 36 巻 ( 31 ) 頁： 5539-5542 1995年7月
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Triethyloxonium Tetrafluoroborate Mediated Addition Reaction of Unsaturated Organosilanes to Squaric Acid Esters 査読有り
Synthesis ( 5 ) 頁： 571-576 1995年5月
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Oxidative Rearrangement of 4-Hydroxy-2-cyclobutenone. A New Route to Highly Substituted Furanones from Squaric Acid 査読有り
The Journal of Organic Chemistry 59 巻 ( 17 ) 頁： 4707-4709 1994年8月
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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 査読有り
Tetrahedron 50 巻 ( 26 ) 頁： 7783-7798 1994年6月
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Cyanohydrins from Squaric Acid Ester with Trimethylsilyl Cyanide and Their Ring Opening Reactions 査読有り
Synlett ( 10 ) 頁： 781-783 1993年10月
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Synthesis of γ-Acylmethylenetetronates from Squaric Acid 査読有り
Tetrahedron Letters 34 巻 ( 30 ) 頁： 4807-4810 1993年7月
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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 査読有り
Journal of Chemical Society, Perkin Transactions 1 ( 2 ) 頁： 263-271 1993年1月
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Catalysed 1,2- vs 1,4-Addition of 3,4-Dichlorocyclobut-3-ene-1,2-dione with Unsaturated Organosilanes 査読有り
Journal of Chemical Society, Perkin Transactions 1 ( 9 ) 頁： 2272-2273 1991年9月