Studies of Compounds Related to Azines. VII. The Pyrorlysis of 2-Acetylthiophene- and 2-Acetylfuranketazine
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概要
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As part of a study attempting to elucidate the relation between the chemical structure of an azine and its pyrolysate, the pyrolyses of 2-acetylthiophene- (I) and 2-acetylfuranketazine (II) have been investigated. The pyrolysis of I at 270°C afforded principally nitrogen, ammonia, and 7-methy 1-5-(2-thienyl)-thieno[2,3-<I>c</I>]pyridine (III), plus lesser quantities of thiophenecarbonitrile and 2-acetylthiophene. The reductive desulfurization of III, followed by oxidation, afforded pyridine 2,4,6-tricarboxylic acid <I>via</I> 5-<I>n</I>-butyl-7-methyl-thieno[2,3-<I>c</I>]pyridine and 2-<I>n</I>-butyl-4-ethyl-6-methylpyridine. On the other hand, II was pyrolyzed to give nitrogen, ammonia, and tars as the major products, together with furan, furancarbonitrile, 2-acetylfuran, 5-(2-furyl)-7-methyl-furo[2,3-<I>c</I>]pyridine, and 2,4,6-tri(2-furyl)pyridine.
- 公益社団法人 日本化学会の論文
著者
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Tsuge Otohiko
Research Institute of Industrial Science, and Department of Molecular Science and Technology, Interdisciplinary Graduate School of Engineering Sciences Kyushu University
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Watanabe Haruyuki
Research Institute of Industrial Science, Kyushu University
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Hokama Kozo
Department of Chemistry, Faculty of Science and Engineering, Ryukyu University Naha
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