Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Suketaka ITO"'
Publikováno v:
Bulletin of the Chemical Society of Japan. 76:327-334
Chiral Ni(II)-1,1′-binaphthyl-2,2′-diimine complexes were found to be effective Lewis-acid catalysts for an asymmetric 1,3-dipolar cycloaddition reaction of N-benzylideneaniline N-oxide with 3-crotonoyl-2-oxazolidinone. In the presence of molecul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7884b230353b4837e16d87abe24de7c6
https://doi.org/10.1246/bcsj.76.327
https://doi.org/10.1246/bcsj.76.327
Autor:
Nobuaki Tanaka, Tomoshige Kobayashi, Suketaka Ito, Takashi Mori, Takeyuki Miwa, Hiroyuki Suga, Tsuneo Fujii, Akikazu Kakehi
Publikováno v:
Chemical and Pharmaceutical Bulletin. 51:75-84
Various ethyl 1-arylcarbonyl-3-[(un)substituted methylthio]thieno[3,4-b]indolizine-9-carboxylates were synthesized in good yields by a novel methodology in which the S-alkylation of 5-arylcarbonyl-4-ethoxycarbonylmethyl-3-(1-pyridinio)thiophene-2-thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::331a576b4c312ea5ae001629b422cf3b
https://doi.org/10.1248/cpb.51.75
https://doi.org/10.1248/cpb.51.75
Publikováno v:
Bulletin of the Chemical Society of Japan. 74:1115-1121
The addition of Yb(OTf)3 (10 mol%) in a Rh2(OAc)4-catalyzed reaction of o-(methoxycarbonyl)-α-diazoacetophenone with N-methylmaleimide in CH2Cl2 or in diethyl ether gave cycloadducts with high endo-selectivity (endo : exo = 95 : 5–96 : 4). The CuO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0643938f79709304439487f6d305be07
https://doi.org/10.1246/bcsj.74.1115
https://doi.org/10.1246/bcsj.74.1115
Publikováno v:
Chemical and Pharmaceutical Bulletin. 49:1401-1405
New compounds having two indolizine nuclei in a molecule were prepared in low to moderate yields from the reactions of potassium 2-indolizinethiolates with 1,omega-dihalides such as 1,2-diiodoethane, 1,3-dibromopropane, 1,4-dibromobutane, alpha,alpha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed041eeb39007dfdfb02caa0c536fcae
https://doi.org/10.1248/cpb.49.1401
https://doi.org/10.1248/cpb.49.1401
Publikováno v:
Chemical and Pharmaceutical Bulletin. 48:865-869
The title compounds, together with 3-vinylindolizine-1-carbonitriles (4-56%), were prepared in 1-18% yields from the S-alkylation of pyridinium 1-[3-ethoxycarbonyl-1-[cyanomethylthio(thiocarbonyl)]]all ylides with alkyl halides, followed by treatment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4932eb34ae7cfab43bae9a150c9f8874
https://doi.org/10.1248/cpb.48.865
https://doi.org/10.1248/cpb.48.865
Publikováno v:
Chemical and Pharmaceutical Bulletin. 47:1607-1613
Title compounds were prepared in 20-72% yields from the S-aklylation of pyridinium 1- [3-ethoxycarbonyl-1-[(methylthio)thiocarbonyl]]allylides with some alkyl halides, followed by the treatment of the resulting pyridinium salts with a base and then a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b7cde8467c89ffa8683e8e2ae1d170e
https://doi.org/10.1248/cpb.47.1607
https://doi.org/10.1248/cpb.47.1607
Publikováno v:
Chemical and Pharmaceutical Bulletin. 46:1866-1871
The reactions of (Z)-3-[mercapto(methylthio)methylene]-2(3H)-indolizinones with bromoacetonitrile and bromoacetates in the presence of a base gave the corresponding 4(1H)-8, 8a-dihydro-1, 4-thiazino[3, 4, 5-cd]indolizinone derivatives, but similar tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e5d6d3bfcab04a799274168eb62ce0e
https://doi.org/10.1248/cpb.46.1866
https://doi.org/10.1248/cpb.46.1866
Publikováno v:
Chemical and Pharmaceutical Bulletin. 46:934-938
Thermolysis of trialkyl 4-alkylthio-12bH-1,4-thiazepino[5,4-a]isoquinoline-1,2,5-tricarboxytates in refluxing xylene did not afford the usually expected desulfurized products such as benzoquinolizine derivatives (5), but formed trialkyl 2-(1-isoquino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c26e18e45b7c0aad4ed72eb4abdad8b7
https://doi.org/10.1248/cpb.46.934
https://doi.org/10.1248/cpb.46.934
Publikováno v:
The Journal of Organic Chemistry. 62:7788-7793
Reactions of some 1-pyridinio- and 1-(4-methylpyridinio)(arenethiocarbonyl)amidates with dimethyl acetylenedicarboxylate in chloroform afforded neither the expected dimethyl 2-aryl-5aH-pyrido[1,2-d][1,3,4]thiadiazepine-4,5-dicarboxylates nor their in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ac4885fc65fae9065e364574a50a563
https://doi.org/10.1021/jo971066o
https://doi.org/10.1021/jo971066o
Publikováno v:
Chemical and Pharmaceutical Bulletin. 45:765-768
The Friedel-Crafts acylation of 1-acetylindoline with (S)-2- or (R)-2-(methanesulfonyloxy)propionyl chloride, and aluminum chloride in dichloromethane at room temperature did not afford the expected (S)- or (R)-1-acetyl-5-[2-(methanesulfonyloxy)propi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15889f3ec8cdbfebb0e3852771ec2183
https://doi.org/10.1248/cpb.45.765
https://doi.org/10.1248/cpb.45.765