in tetrahydrofuran

di-tert-butyl peroxide in benzene T=130°C; 24 h;

1: With potassium tert-butylate in tetrahydrofuran 2: With C2H4Br2 in tetrahydrofuran

T=140 - 150°C;

in benzene T=25°C; Irradiation;

sodium in toluene T=110°C; 3 h;

aluminium trichloride 1.) C6H6, reflux, 10 h, 2.) Et2O, THF, reflux, 6 h; Multistep reaction;

Na; K in toluene byproducts: Al; reaction with Na/K alloy at room temp.;

in diethyl ether to an ether suspn. of PbCl2 was added an ether soln. of (THF)3LiSi(SiMe3)3; stirred for 2 h at -78°C; warmed to ambient temp. and stirred for 8 h; solvent removed in vac., residue stirred with pentane; soln. concd. and held in refrigerator overnight; MAS; elem. anal.;

in hexane byproducts: H2, CO; Irradiation (UV/VIS); quartz ampule, Fe- and Si-compd. dissoln., stirring by rotation, coolingwith air, medium pressure Hg lamp, mixture filtration, soln. of P-compd . addn.; bottom layer sepn., washing (hexane), residual solvent removing (reducedpressure), residue dissoln. in diethyl ether, cooling (-10°C); G C, HPLC, elem. anal.;