Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Hiroshige Toku"'
2
Synthesis and Reduction of 1, 1-Pentamethylene-3-nitroguanidine
Autor: Setsuko Nakada, Tamio Nishimura, Takako Yamashita, Hiroshige Toku
Publikováno v: Journal of Synthetic Organic Chemistry, Japan. 32:192-196
1, 1-Pentamethylene-3-nitroguanidine (2) was synthesized by nitration of 1, 1-pentamethyleneguanidine (1) with nitric acid or potassium nitrate in conc. sulfuric acid.On reduction of (2) with Zn-AcOH, (1), 1, 1-pentamethylene-3-nitroso-guanidine (3),
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86b740415f0b033c2b20e9182fc96680
https://doi.org/10.5059/yukigoseikyokaishi.32.192
Zobrazit plný text záznamu
4
Synthesis of (1-Adamantyl) guanidines
Autor: Norimichi Ueno, Katsuji Kenmotsu, Tamio Nishimura, Hiroshige Toku
Publikováno v: Journal of Synthetic Organic Chemistry, Japan. 30:1024-1029
Various methods were attempted to synthesize (1-adamantyl) guanidine (1) and 1- (1-adamantyl) -3-aminoguanidine (2) from 1-aminoadamantane. It was found that (1) is prepared by heating a mixture of 1-aminoadamantane, its hydrochloride and cyanamide a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a8d30893a14a1073e1d72f87929c6c6
https://doi.org/10.5059/yukigoseikyokaishi.30.1024
Zobrazit plný text záznamu
6
Syntheses of 1, 1-Disubstituted-3-aminoguanidines
Autor: Ichiro Watonabe, Hiroshige Toku, Setsuko Nakada, Tamio Nishimura
Publikováno v: Journal of Synthetic Organic Chemistry, Japan. 28:237-242
The reaction of S-methyl-isothiosemicarbazide hydriodide with morpholine or pyrrolidine gave the corresponding new 1, 1-disubstituted-3-aminoguanidines in good yields, but the yield was poor in the case of piperidine. Therefore the reaction of cyanop
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::614c69fd6f1db55e0d313b71bd5e2d72
https://doi.org/10.5059/yukigoseikyokaishi.28.237
Zobrazit plný text záznamu
7
Studies on the Voges-Proskauer Reaction. I. Structure of Positive Substance in the Diacetyl Reaction
Autor: Hiroshige Toku, Yuzuru Sakabe, Tamio Nishimura, Shinzo Tanabe, Tomoyuki Kono, Takeichi Sakaguchi
Publikováno v: Chemical and Pharmaceutical Bulletin. 17:639-649
The structural limitation of positive compounds in the Voges-Proskauer Reaction was investigated with guanidines, ureas, thioureas, formamidine and formaldoxime, using the α-naphthol alkaline and diacetyl solution. Only guanidino derivatives showed
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f60e58760b5a85ec6a7f18298a842bc
https://doi.org/10.1248/cpb.17.639
Zobrazit plný text záznamu
8
Synthesis of 1, 1-Disubstituted-3-aminoguanidines (Part 2)
Autor: Tadashi Sato, Hiroshige Toku, Tamio Nishimura
Publikováno v: Journal of Synthetic Organic Chemistry, Japan. 30:954-958
The reaction of acetone S-alkylisothiosemicarbazone (1) with pyrrolidine, piperidine and morpholine gave the corresponding new acetone [1, 1-disubstituted amidino] hydrazones (2). The reactivity of amines toward (1) decreased in the order of morpholi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::07601137089dbe76d761600941f02eb0
https://doi.org/10.5059/yukigoseikyokaishi.30.954
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje