benzene in neat (no solvent) Cocondensation of Cr, o-methyl acetophenone and benzene under N2; filtration; concn.; residue is eluated (SiO2, toluene); black silica gel on top is collected and extd. with ether; chromd. (SiO2, toluene/ether, -65°C), the first red zone is collected; elem. anal.;
参考文献
Brunner, Henri; Ernst, Johannes; Wischert, Thomas; Thewalt, Ulf
Journal of Organometallic Chemistry, 1987 , vol. 328, p. 331 - 340
