Syntheses of Organic Phosphates. II. 3-Hydroxy-2-pyridylmethyl, 6-Methyl-2-pyridylmethyl, 3-Pyridyl and 8-Quinolyl Phosphate
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概要
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The phosphorylation of 3-hydroxy-2-pyridylmethanol and 6-methyl-2-pyridylmethanol was carried out with pyrophosphoric acid. 3-Pyridinol and 8-quinolinol were phosphorylated in pyridine by using five- to ten-fold molar amount of phosphoryl chloride at room temperature or below. The chromatographic elution of the reaction mixtures on a column of cation-exchange resin, with water as an eluent, was found to be effective for separation and purification of the products in most cases, while 8-quinolyl phosphate was obtained directly from the concentrated reaction mixture. These phosphates, with the exception of 3-hydroxy-2-pyridylmethyl phosphate, follow acid dissociation processes similar to the case of pyridylmethyl phosphates. The effect of the 3-hydroxy group in 3-hydroxy-2-pyridymethyl phosphate on its acid dissociation processes was discussed. A symmetric pyrophosphate ester was also isolated in the course of phosphorylation of 3-pyridinol.
- 公益社団法人 日本化学会の論文
著者
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Murakami Yukito
Department Of Chemical Science And Technology Faculty Of Engineering Kyushu University
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Kondo Hiroki
Deparment Of Physics Saga University
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Takagi Makoto
Department Of Chemical Science And Technology Faculty Of Engineering Kyushu University
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SUNAMOTO JUNZO
Department of Applied Chemistry and Biotechnology, Niihama National College of Technology
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Sunamoto Junzo
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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Sadamori Hiromi
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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Kondo Hiroki
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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