in dichloromethane
addn. of BF3*OEt2 to soln. of 1,3-diketone in dichloromethane at room temp., reaction mixture remained for 72 h at room temp.; evapn. in vac., residue suspended in water, solid material filtered off and recryst. from toluene; elem. anal.;
参考文献
Stefane, Bogdan; Polanc, Slovenko
New Journal of Chemistry, 2002 , vol. 26, # 1 p. 28 - 32
