Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Toshiharu Araki"'
Publikováno v:
Synthesis. 44:1542-1550
Copper-catalyzed skeletal rearrangement of O-propargylic aryloximes (E)-1 were carried out to afford the corresponding four-membered cyclic nitrones 2 in good to excellent yields. The optimal reactions conditions of the highly regioselective reaction
Autor:
Masayoshi Yoshida, Tadashi Kikuchi, Masanori Fukuda, Toshiharu Araki, Masahiro Katoh, Kenji Hayashi, Ken-ichi Okamoto, Noboru Ayukawa, Katsumi Koda
Publikováno v:
Journal of the Japan Society of Powder and Powder Metallurgy. 58:207-213
As the starting material of molybdenum manufactured by powder metallurgy, molybdenum powder is used. To investigate the elution in water of the molybdenum powder used as a raw material, the molybdenum elution was analyzed by ion chromatography and X-
Autor:
Tadashi Kikuchi, Noboru Ayukawa, Katsumi Koda, Masanori Fukuda, Kenji Hayashi, Masayoshi Yoshida, Masahiro Katoh, Toshiharu Araki
Publikováno v:
Journal of the Japan Society of Powder and Powder Metallurgy. 57:485-491
The press process of molybdenum is done without using an organic binder when the molybdenum is manufactured at high temperature used in powder metallurgy. The decrease in the molybdenum ingot density, which was a factor in the yield decrease of the m
Publikováno v:
Advanced Synthesis & Catalysis. 351:1089-1100
The cyclization of 6-(1-alkoxyethoxy)hex-2-ynoantes in the presence of the platinum-olefin catalyst system gave the corresponding multisubstituted 2-[dihydrofuran-2(3H)-ylidene]acetates in good to high yields. The Z/E selectivity is controlled by the
Publikováno v:
Tetrahedron Letters. 50:216-218
Gold-catalyzed isomerization of 2-alkynyl-1-tetralones afforded the corresponding 2-naphthylmethyl ketones in good to high yields. For example, the reaction of 2-{4-(methoxyphenyl)methyl}-2-(phenylethynyl)-3,4-dihydronaphthalen-1( 2H )-one and 2-benz
Autor:
Nobuyuki, Matsui, Toshiharu, Araki, Teijiro, Isokawa, Department of Computer Engineering,Faculty of Engineering,HimejiInstitute of Technology, Fujitsu-Ten Co.,Ltd, Department of Computer Engineering,Faculty of Engineering,Himeji Institute of Technology
Publikováno v:
姫路工業大学工学部研究報告. A = Reports of the Faculty of Engineering Himeji Institute of Technology. 52:18-23
Publikováno v:
ChemInform. 43
Copper-catalyzed skeletal rearrangement of O-propargylic aryloximes (E)-1 were carried out to afford the corresponding four-membered cyclic nitrones 2 in good to excellent yields. The optimal reactions conditions of the highly regioselective reaction
Publikováno v:
ChemInform. 42
The reaction proceeds via tandem [2,3]-rearrangement of the O-propargylic arylaldoximes and 4π-electrocyclization of the intermediate N-allenylnitrones.
Publikováno v:
Organic letters. 13(14)
(E)-O-Propargylic arylaldoximes were regioselectively converted, in the presence of copper catalysts, into their corresponding four-membered cyclic nitrones in good to excellent yields. The reactions proceeded via a tandem [2,3]-rearrangement and 4π
Publikováno v:
ChemInform. 40
Gold-catalyzed isomerization of 2-alkynyl-1-tetralones afforded the corresponding 2-naphthylmethyl ketones in good to high yields. For example, the reaction of 2-{4-(methoxyphenyl)methyl}-2-(phenylethynyl)-3,4-dihydronaphthalen-1( 2H )-one and 2-benz