Journal of the Chemical Society. Perkin transactions I p. 1160 - 1162 (1989)
Update date:2022-08-04
Topics:
Pittol, Carlos A.
Pryce, Robert J.
Roberts, Stanley M.
Ryback, George
Sik, Vladimir
Williams, Julian O.
The title compound was treated with several dienophiles to give cycloadducts resulting from addition to the less hindered face of the molecule. An exceptional case was provided by N-ethylmaleimide which added in endo-fashion to both faces of the diene. 1,2-Isopropylidenedioxy-3-trifluoromethylcyclohexa- 3,5-diene acted as a dienophile on addition to cyclopentadiene and underwent dimerization to give a stable [4 + 2] adduct.
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