Výsledky vyhledávání - "Takao Yamamori"

Effects of aryl and arylethynyl substituents at the 1-position on rotational barrier around C(sp)–C(sp3) bonds and bending deformation of acetylenic carbons in bis(9-triptycyl)ethynes

Autor: Toshiaki Makino, Shinji Toyota, Takao Yamamori

Publikováno v: Tetrahedron. 57:3521-3528

The barriers to rotation around C(sp)–C(sp3) single bonds in (1,4-dimethyl-9-triptycyl)(1-X-9-triptycyl)ethynes [X=phenyl, mesityl, phenylethynyl, or (1-naphthyl)ethynyl] were determined by the dynamic NMR method to examine the effect of nonspheric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c28b74658da2b449c90a299b1a3737a
https://doi.org/10.1016/s0040-4020(01)00232-0

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Rotational Isomerism Involving an Acetylenic Carbon II : Effect of 1-Halogen Substituents on Rotamer Population and Rotational Barrier around C(sp)-C(sp3) Bonds in Bis(9-triptycyl)ethynes

Autor: Takao Yamamori, Michinori Oki, Toshiaki Makino, Shinji Toyota

Publikováno v: Bulletin of the Chemical Society of Japan. 73:2591-2597

A series of (1,4-dimethyl-9-triptycyl)(1-halo-9-triptycyl)ethynes were synthesized to examine the effect of halogen substituents on the rotational isomerism about C(sp)-C(sp3) bonds. The kinetic and thermodynamic data of the isomerization between the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1caeb1d29b10b4099db76318020489b
https://doi.org/10.1246/bcsj.73.2591

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Rotational Isomerism Involving an Acetylenic Carbon: Synthesis of and Barrier to Rotation around C(sp)-C(sp3) Bonds in Bis(1,4-disubstituted 9-triptycyl)ethynes

Autor: Shinji Toyota, Takao Yamamori, Michinori Oki, Mitsuhiro Asakura

Publikováno v: Bulletin of the Chemical Society of Japan. 73:205-213

The substituent effect on the rotational barriers of acetylenic to tetrahedral C-C bonds was studied for the title compounds carrying Me or OMe substituents at the 1,4-positions in the 9-triptycyl groups. These compounds were prepared by use of the D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68768f00d1bfea70de9115d1f0b1738e
https://doi.org/10.1246/bcsj.73.205

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ChemInform Abstract: Rotational Isomerism Involving and Acetylenic Carbon: Synthesis of and Barrier to Rotation Around C(sp)-C(sp3) Bonds in Bis(1,4-disubstituted 9-triptycyl)ethynes

Autor: Mitsuhiro Asakura, Takao Yamamori, Shinji Toyota, Michinori Oki

Publikováno v: ChemInform. 31

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6177ea474401d0bc6e9dbfecd9d13076
https://doi.org/10.1002/chin.200013070

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A CASE OF AN GASTRIC HODGKIN'S DISEASE

Autor: Shigeru Oshima, Hideki Nakahara, Macoto Sakamoto, Takao Yamamori, Akane Kurisu, Riuichi Innami, Masuo Iizuka

Publikováno v: The journal of the Japanese Practical Surgeon Society. 42:406-413

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ffeb9230d5b78bc8846850fec8a067e6
https://doi.org/10.3919/ringe1963.42.406

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