hydrogenchloride in diethyl ether at 35 °C; 3 h;

hydrogenchloride in diethyl ether to stirred suspn. of Sn in diacetone alcohol and Et2O added HCl in 9 h at 35 °C; filtd., residue extd. with hot CHCl3 (Cl2Sn(C(CH3)2CH2C(O)CH3)2); filtrate evapd., extd. with CHCl3 (mixt. of products);

hydrogenchloride; acetone in acetone HCl passed 4 h into suspn. of Sn in acetone; concd., extd. with CHCl3, evapd.;

hydrogenchloride in not given