Synthesis and Properties of Ferrocenylmethylene‐Bridged Calix[4]azulene and a New Example of Bis(1‐azulenyl)ferrocenylmethylium Ion | Zendy

Shoji Taku | Zendy; Higashi Junya | Zendy; Ito Shunji | Zendy; Toyota Kozo | Zendy; Iwamoto Takeaki | Zendy; Morita Noboru | Zendy

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Synthesis and Properties of Ferrocenylmethylene‐Bridged Calix[4]azulene and a New Example of Bis(1‐azulenyl)ferrocenylmethylium Ion

Author(s) -

Shoji Taku,

Higashi Junya,

Ito Shunji,

Toyota Kozo,

Iwamoto Takeaki,

Morita Noboru

Publication year - 2009

Publication title -

european journal of organic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.825

H-Index - 155

eISSN - 1099-0690

pISSN - 1434-193X

DOI - 10.1002/ejoc.200900741

Subject(s) - azulene , chemistry , derivative (finance) , ferrocene , cyclic voltammetry , acetic acid , ion , hydride , medicinal chemistry , organic chemistry , electrochemistry , electrode , metal , financial economics , economics

Ferrocenylmethylene‐bridged calix[4]azulene derivative 3 and bis(1‐azulenyl)ferrocenylmethane derivative 4 were obtained by the reaction of 6‐ tert ‐butylazulene ( 6 ) with ferrocenecarbaldehyde ( 7 ) in acetic acid. The new bis(1‐azulenyl)ferrocenylmethylium ion 5 + was also generated by the hydride abstraction reaction of the corresponding hydro derivative 4 with DDQ. The novel ferrocene‐substituted calix[4]azulene derivative 3 exhibit a reversible one‐step multi‐electron oxidation upon cyclic voltammetry.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

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