論文 - 山本 芳彦
-
Ruthenium(II)-Catalyzed [2+2+2] Cycloaddition of 1,6-Diynes with Tricarbonyl Compounds 査読有り
Yoshihiko Yamamoto, Hideyuki Takagishi, Kenji Itoh
Journal of the American Chemical Society 124 巻 ( 24 ) 頁： 6844-6845 2002年6月
-
Ruthenium(II)-Catalyzed Cycloaddition of 1,6-Diynes with Isothiocyanates and Carbon Disulfide: First Transition-Metal Catalyzed [2+2+2] Cocyclotrimerization Involving C=S Double Bond 査読有り
Yoshihiko Yamamoto, Hideyuki Takagishi, Kenji Itoh
Journal of the American Chemical Society 124 巻 ( 1 ) 頁： 28-29 2002年1月
-
Ruthenium(II)-Catalyzed Isomer-selective Cyclization of 1,6-Dienes Leading to exo-Methylenecyclopentanes. Unprecedented Cycloisomerization Mechanism Involving Ruthenacyclopentane(hydrido) Intermediate 査読有り
Yoshihiko Yamamoto, Yu-ichiro Nakagai, Naoki Ohkoshi, and Kenji Itoh
Journal of the American Chemical Society 123 巻 ( 26 ) 頁： 6372-6380 2001年7月
-
Diastereoselective Inter- and Intramolecular Pinacol Coupling of Aldehydes Promoted by Monomeric Titanocene(III) Complex Cp2TiPh 査読有り
Yoshihiko Yamamoto, Reiko Hattori, Takeyuki Miwa, Yu-ichiro Nakagai, Taketeru Kubota, Chiyo Yamamoto, Yoshio Okamoto, and Kenji Itoh
The Journal of Organic Chemistry 66 巻 ( 11 ) 頁： 3865-3870 2001年6月
-
Ruthenium(II)-Catalyzed Cycloaddition of 1,6-Diynes with Isocyanates Leading to Bicyclic Pyridones 査読有り
Yoshihiko Yamamoto, Hideyuki Takagishi, and Kenji Itoh
Organic Letters 3 巻 ( 13 ) 頁： 2117-2119 2001年6月
-
Significant Chemo- and Regioselectivies in the Ru(II)-Catalyzed [2 + 2 + 2] Cycloaddition of 1,6-Diynes with Dicyanides 査読有り
Yoshihiko Yamamoto, Ryuji Ogawa, and Kenji Itoh
Journal of the American Chemical Society 123 巻 ( 25 ) 頁： 6189-6190 2001年6月
-
Ruthenium(II)-catalyzed [2+2+2] cycloaddition of 1,6-diynes with electron-deficient nitriles 査読有り
Yoshihiko Yamamoto, Satoshi Okuda, and Kenji Itoh
Chemical Communications ( 11 ) 頁： 1102-1103 2001年6月
-
The First Palladium(0) Complex of a Linear 1,6,11-Triyne. A Reactive Intermediate in the Catalytic Cyclotrimerization of a Triyne 査読有り
Yoshihiko Yamamoto, Asako Nagata, Yasuhiro Arikawa, Kazuyuki Tatsumi, and Kenji Itoh
Organometallics 19 巻 ( 13 ) 頁： 2403-2405 2000年6月
-
Ru(II)-Catalyzed Cycloadditions of 1,6-Heptadiynes with Alkenes: New Synthetic Potential of Ruthenacyclopentatrienes as Biscarbenoids in Tandem Cyclopropanation of Bicycloalkenes and Heteroatom-Assisted Cyclocotrimerization of 1,6-Heptadiynes with Heterocyclic Alkenes 査読有り
Yoshihiko Yamamoto, Hideaki Kitahara, Ryuji Ogawa, Hiroyuki Kawaguchi, Kazuyuki Tatsumi, and Kenji Itoh
Journal of the American Chemical Society 122 巻 ( 18 ) 頁： 4310-4319 2000年5月
-
Highly chemo- and regio-selective [2+2+2] cycloaddition of unsymmetrical 1,6-diynes with terminal alkynes catalyzed by Cp*Ru(cod)Cl under mild conditions 査読有り
Yoshihiko Yamamoto, Ryuji Ogawa, and Kenji Itoh
Chemical Communications ( 7 ) 頁： 549-550 2000年4月
-
Fully substituted cyclooctatetraenes assembled by the [4+4] cross coupling of two different diene units: a shunting strategy of Wilke's metallacyclopentadiene coupling mechanism 査読有り
Yoshihiko Yamamoto, Tatsuya Ohno, and Kenji Itoh
Chemical Communications ( 16 ) 頁： 1543-1544 1999年8月
-
Pd(0)-Catalyzed Selective [2+2+2] Cycloaddition of Dimethyl Nona-2,7-diyne-1,9-dioate Derivatives with Dimethyl Acetylenedicarboxylate 査読有り
Yoshihiko Yamamoto, Asako Nagata, and Kenji Itoh
Tetrahedron Letters 40 巻 ( 27 ) 頁： 5035-5038 1999年7月
-
Highly trans-selective intramolecular pinacol coupling of dials catalyzed by bulky Cp2TiPh 査読有り
Yoshihiko Yamamoto, Reiko Hattori, and Kenji Itoh
Chemical Communications ( 9 ) 頁： 825-826 1999年5月
-
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
-
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
-
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
-
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
-
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
-
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
-
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