Kj. Cheng et al., A FACILE SYNTHESIS OF 1,3,5-TRIARYL BENZENES FROM ACETOPHENONE DIETHYL KETALS IN THE PRESENCE OF ACETYL-CHLORIDE AND SMCL3, Synthetic communications, 27(1), 1997, pp. 11-15
Samarium trichloride, SmCl3, has been found to be an efficient catalys
t for the synthesis of 1,3,5-triaryl benzenes from acetophenone diethy
l ketals in the presence of acetyl chloride under solvent of pentane a
nd mild conditions.