Zobrazeno 1 - 10 of 14 pro vyhledávání: '"Ko-ichi Matsushita"'
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Oxidative rearrangement of pentaalkoxychalcones with phenyliodine(III) bis(trifluoroacetate) (PIFA): synthesis of (±)-10-bromopterocarpin and (±)-pterocarpin
Autor: Ko-ichi Matsushita, Rie Fujita, Yasuyoshi Miki
Publikováno v: Journal of the Chemical Society, Perkin Transactions 1. :2533-2536
The oxidative rearrangement of pentaalkoxychalcones using the hypervalent iodine compound, phenyliodine(III) bis(trifluoroacetate) (PIFA), has been examined. Treatment of 2,2′-bis(benzyloxy)-4′-methoxy-4,5-methylenedioxychalcone with PIFA gives a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cc35e1681a238ec793cea8ae8ee578b
https://doi.org/10.1039/a803561j
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3
ChemInform Abstract: Oxidative Rearrangement of Pentaalkoxychalcones with Phenyliodine(III) Bis(trifluoroacetate) (PIFA): Synthesis of (.+-.)-10-Bromopterocarpin and (.+-.)-Pterocarpin
Autor: Yasuyoshi Miki, Rie Fujita, Ko-ichi Matsushita
Publikováno v: ChemInform. 29
The oxidative rearrangement of pentaalkoxychalcones using the hypervalent iodine compound, phenyliodine(III) bis(trifluoroacetate) (PIFA), has been examined. Treatment of 2,2′-bis(benzyloxy)-4′-methoxy-4,5-methylenedioxychalcone with PIFA gives a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4056ab38f70f48225cb1f4650b97210a
https://doi.org/10.1002/chin.199852301
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5
ChemInform Abstract: Intramolecular Palladium-Catalyzed Cyclization of Methyl 1-(2-Bromobenzyl)indole-2-carboxylates: Synthesis of Pratosine and Hippadine
Autor: Hideaki Shirokoshi, Ko-ichi Matsushita, Yasuyoshi Miki
Publikováno v: ChemInform. 30
Palladium-catalyzed cyclization of methyl 1-(2-bromo-4,5-dimethoxy-benzyl)indole-2-carboxylate in the presence of potassium acetate in hot 1,4-dioxane gave a 7 H -pyrrolo[3,2,1- de ]phenanthridine derivative, which was converted to pratosine in four
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0b6397fc9f3fcb4d7cfe995f4b273a1
https://doi.org/10.1002/chin.199933243
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9
Intramolecular palladium-catalyzed cyclization of methyl 1-(2-bromobenzyl)indole-2-carboxylates: Synthesis of pratosine and hippadine
Autor: Hideaki Shirokoshi, Ko-ichi Matsushita, Yasuyoshi Miki
Publikováno v: Tetrahedron Letters. 40:4347-4348
Palladium-catalyzed cyclization of methyl 1-(2-bromo-4,5-dimethoxy-benzyl)indole-2-carboxylate in the presence of potassium acetate in hot 1,4-dioxane gave a 7 H -pyrrolo[3,2,1- de ]phenanthridine derivative, which was converted to pratosine in four
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8a1317c0f3a1f29f2fb201e038b15cb
https://doi.org/10.1016/s0040-4039(99)00687-5
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10
Reaction of indole-2,3-dicarboxylic anhydride with (3-bromo-4-pyridyl)triisopropoxytitanium: Synthesis of ellipticine
Autor: Yasuyoshi Miki, Hiroko Hachiken, Yoshitaka Tada, Ko-ichi Matsushita, Norihide Yanase
Publikováno v: Tetrahedron Letters. 37:7753-7754
N -Benzylindole-2,3-dicarboxylic anhydride ( 1 ) was reacted with (3-bromo-4-pyridyl)triisopropoxytitanium to give 2-(3-bromoisonicotinoyl)indole-3-carboxylic acid ( 2 ) as the sole product in high yield, which could be converted to ellipticine in si
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81a59ca58d06d5c1d71d2449a878ba1f
https://doi.org/10.1016/0040-4039(96)01768-6
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