74134-53-5Relevant academic research and scientific papers
SYNTHESIS AND PROPERTIES OF 5-CYCLOHEPTATRIENYLIDENE-2(5H)-THIOPHENONE
Takahashi, Kazuko,Sakae, Toshisada,Takase, Kahei
, p. 179 - 182 (1980)
The title compound 3 was prepared in 4 steps starting from 2,5-dibromothiophene in good yield.This synthetic method is advantageous for the easy preparation of the annulenones having an inserted quinonoid ring.The compound 3 is quite stable and proved to have a highly bond-alternated olefinic character on the basis of NMR data and dipole moment.
