Synthesis, properties and molecular structure of a novel dicyanoheptafulvene derivative, 4′-dicyanomethylidenedispiro[cyclohexane- 1, 1′-(1′,4′,7′-trihydrocyclopenta[f]azulene)-7′, 1″-cyclohexane]

Nguyen Chung Thanh, Ryuta Miyatake, Hitoshi Kainuma, Shigeyasu Kuroda, Mitsunori Oda*

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

2 被引用数 (Scopus)

抄録

A novel dicyanoheptafulvene 9 annulated by two spiro[4,5]deca-1,3-dienes was synthesized by the reaction of dispirocyclopentaazulenium cation 8 with bromomalononitrile. Although 9 was found to have a nonplanar heptafulvene structure by its X-ray crystallographic analysis, it is still capable of π-conjugation and thus shows appreciable contribution of the dipolar resonance form 9B based on its spectroscopic data. The degree of the contribution was further evaluated for various dicyanoheptafulvenes in terms of the partial sum of atomic charges of the dicyanomethylene group in the calculated structures besides the interplanar angles of the heptafulvene part and the length of the exocyclic double bond in the crystal structures.

本文言語英語
ページ(範囲)586-593
ページ数8
ジャーナルTetrahedron
62
4
DOI
出版ステータス出版済み - 2006/01/23

ASJC Scopus 主題領域

  • 生化学
  • 創薬
  • 有機化学

フィンガープリント

「Synthesis, properties and molecular structure of a novel dicyanoheptafulvene derivative, 4′-dicyanomethylidenedispiro[cyclohexane- 1, 1′-(1′,4′,7′-trihydrocyclopenta[f]azulene)-7′, 1″-cyclohexane]」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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