catalyst: 15-crown-5 in neat (no solvent) addn. of allyl bromide to stirred mixt. of Sn and 15-crown-5 (90-100°C, N2 stream); evapn. in N2 stream (80-100 Torr, 40°C), fractionation; elem. anal.;

triethylamine in toluene (Ar); addn. of HgCl2 to a suspn. of Sn-powder in toluene; then reflux the mixt. for 30 min; after cooling of the mixt. addn. of triethylamine and reflux it again; now dropwise addn. of allyl bromide with efficient stirring for 2 h;; cooling the mixt. to room temp.; filtration; evapn. of the filtrate; vacuum distn. of the resulting oil;;

in benzene at 25°C;

in tetrachloromethane at 50°C;

in water Ambient temperature;

in water Ambient temperature;

in water Ambient temperature;

in water Ambient temperature;

in water Ambient temperature;

(S)-1-n-butyl-2-lt;(piperidin-1-yl)methylgt;pyrrolidine in dichloromethane T=-78°C;