Synthesis and some reactions of 1,8-diamino-1-azaazulenium salts
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概要
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Amination of 8-amino-3-phenyl-1-azaazulene gave 1,8-diamino-3-phenyl-1-azaazulenium salt (2). Reactions of the salt (2) with triethyl orthoformate and acetic anhydride gave 1-phenyl-2a,3,5-triazabenz[cd]azulene derivatives (3a and 3b). The compound (3a) was also obtained by the reaction of 2 with diethyl ethoxymethylenemalonate in the presence of potassium carbonate. The reaction of 2 with ethyl pyruvate gave 4-acetyl-1-phenyl-2a,3,5-triazabenz[cd]azulene (3c). The structure of 3c was deduced by X-Ray structure analysis. Reaction of 2 with acetylenic esters in the presence of potassium carbonate gave 2a,3-diazabenz[cd]azulene derivatives (10a, b).
- 日本複素環化学研究所の論文
著者
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Kakehi A
Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University
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Akikazu Kakehi
Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University
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Fujii Hiroyuki
Yamaguchi Univ. Yamaguchi Jpn
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Abe Noritaka
Tokyo Univ. Sci. Chiba Jpn
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