water in tetrahydrofuran 3 h; Reflux;

H2O in diethyl ether byproducts: HCl; partial hydrolysis of (C6H5)2SiCl2 in ether with H2O/dioxane; sepn. of HCl by a dry stream of N2;; extraction with n-heptane;;

1: toluene; 1,1-dimethylpropan-1-ol 2: hydrogenchloride; methanol View Scheme

1: toluene; 1,1-dimethylpropan-1-ol 2: diethyl ether View Scheme

1: toluene; 1,1-dimethylpropan-1-ol 2: CH3COCl / further solvent(s) View Scheme

1: toluene; 1,1-dimethylpropan-1-ol 2: neat (no solvent) View Scheme

1: toluene; 1,1-dimethylpropan-1-ol 2: diethyl ether View Scheme

in 1,1-dimethylpropan-1-ol; toluene hydrolysis at room temp.;;

triethylamine in diethyl ether byproducts: {N(C2H5)3H}Cl; cooling a solution of 3.0 g phenylboric acid in 1 l diethyl ether in presence of 5.5 g triethyl amine at -78°C, addition of a solution of 11.3 g disiloxane in 50 ml diethyl ether drop by drop, warming to room temp. and stirring overnight;; filtration; removal of solvent; recrystallization from CH2Cl2-hexanes at -6°C;;

N(C2H5)3 in diethyl ether byproducts: {N(C2H5)3H}Cl; to a cooled (-78 °C) soln. of (C6H5)B(OH)2 and excess triethylamine in Et2O was added dropwise a soln. of 1,3-dichlorotetraphenyldisiloxane in the same solvent, warmed to room temp., mixture was allowed to stir overnight;; filtration, evapn. of solvent; product mixture obtained (by (29)Si NMR); purification on recrystn. of the residue from CH2Cl2/hexane at -6 °C; elem. anal.;;