W. Dmowski et al., THE CHEMISTRY OF POLY(TRIFLUOROMETHYL)BENZENES .2. REACTIONS OF 1,2,3,5-TETRAKIS(TRIFLUOROMETHYL)BENZENE WITH ORGANOLITHIUM COMPOUNDS, Journal of fluorine chemistry, 62(1), 1993, pp. 15-23
1,2,3,5-Tetrakis(trifluoromethyl)benzene reacts with phenyl-lithium or
t-butyl-lithium to give mixtures of de-aromatised products, derivativ
es of 2,5- and 2,4-cyclohexadiene-1-ylidene of molecular composition C
10H2F10Ph2, C10H2F9Ph3, C10H2F10Bu2t and C10H3F10But. The X-ray crysta
l structure of the triphenyl derivative has been obtained. The H-1, F-
19 and C-13 NMR data provide a satisfactory proof for the structures o
f the other compounds.