No abstract

Reaction of guaiazulene (1) with anthracene-9-carbaldehyde in methanol in the presence of hexafluorophosphoric acid at 25 °C for 30 min gave the title compound 2 in 88% yield.

The Facile Preparation, Crystal Structure, and Chemical and Electrochemical Properties of 9-Anthryl-3-guaiazulenylmethylium Hexafluorophosphate. -Reaction of guaiazulene (I) with aldehyde (II) in the presence of HPF6 affords title compound (III) in good yield. -(TAKEKUMA*, S.-I.; SASAKI, K.; NAKATSUJI, M.; SASAKI, M.; MINEMATSU, T.; TAKEKUMA, H.; Bull. Chem. Soc. Jpn. 77 (2004) 2, 379-380; Dep. Appl. Chem., Fac. Sci. Eng., Kinki Univ., Higashi-Osaka, Osaka 577, Japan; Eng.) -M. Paetzel 21-203