Noriko Asaka
Osaka Kyoiku University
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Publication
Featured researches published by Noriko Asaka.
Tetrahedron | 2002
Nagatoshi Nishiwaki; Midori Sakashita; Mayumi Azuma; Chitose Tanaka; Mina Tamura; Noriko Asaka; Kazushige Hori; Yasuo Tohda; Masahiro Ariga
New methods for functionalization of 1-methyl-2-quinolone (MeQone) skeleton are provided. The reaction of 1-methyl-3,6,8-trinitro-2-quinolone (TNQ) with amines affords quinolone dimer 1 and 6,8-dinitroquinolone (6,8-DNQ). Dimerization predominantly proceeds at room temperature, and denitration takes place under heated and diluted conditions. We also provide a plausible mechanism for these reactions on the basis of structure–reactivity relationship of amines.
Tetrahedron Letters | 1998
Nagatoshi Nishiwaki; Toshiharu Uehara; Noriko Asaka; Yasuo Tohda; Masahiro Ariga; Shuji Kanemasa
Abstract Gentle generation of nitrile oxide bearing a carbamoyl group was performed. 4-Nitro-3-isoxazolin-5-one was treated with dipolarophiles in the mixed solvent ( MeCN H 2 O ) at room temperature to afford cycloadducts in good yields.
Heterocycles | 1999
Masahiro Ariga; Nagatoshi Nishiwaki; Chitose Tanaka; Motoki Asahara; Noriko Asaka; Yasuo Tohda
Journal of Organic Chemistry | 1999
Nagatoshi Nishiwaki; Tomoko Nogami; Chitose Tanaka; Fuminori Nakashima; Yoji Inoue; Noriko Asaka; Yasuo Tohda; Masahiro Ariga
Journal of Organic Chemistry | 1999
Nagatoshi Nishiwaki; Tomoko Nogami; Takayasu Kawamura; Noriko Asaka; Yasuo Tohda; Masahiro Ariga
Heterocycles | 2003
Masahiro Ariga; Nagatoshi Nishiwaki; Yoshikazu Okajima; Mina Tamura; Noriko Asaka; Kazushige Hori; Yasuo Tohda
Bulletin of the Chemical Society of Japan | 2016
Yasuo Tohda; Takeshi Yanagidani; Noriko Asaka
ChemInform | 2010
Nagatoshi Nishiwaki; Tomoko Nogami; Takayasu Kawamura; Noriko Asaka; Yasuo Tohda; Masahiro Ariga
Heterocycles | 2002
Masahiro Ariga; Nagatoshi Nishiwaki; Takuma Ogihara; Mina Tamura; Noriko Asaka; Kazushige Hori; Yasuo Tohda
Arkivoc | 2002
Nagatoshi Nishiwaki; Kazuo Matsushima; Mina Tamura; Noriko Asaka; Kazushige Hori; Yasuo Tohda; Masahiro Ariga
