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Synthesis and some reactions of 1,8-diamino-1-azaazulenium salts

Heterocycles Volume 53 Issue 2 Page 323-330
published_at 2000
2007020160.pdf
[fulltext] 2.86 MB
Title
Synthesis and some reactions of 1,8-diamino-1-azaazulenium salts
Creators Abe Noritaka
Creators Odagiri Kunihiko
Creators Fujii Hiroyuki
Creators Kakehi Akikazu
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).
Languages eng
Resource Type journal article
Publishers 日本複素環化学研究所
Date Issued 2000
File Version Version of Record
Access Rights open access
Relations
[ISSN]0385-5414
[NCID]AA00663739
Schools 大学院医学系研究科(理学) 総合科学実験センター