1: N,N-diethylaniline hydrochloride With sodium tetrahydroborate in ethylene glycol dimethyl ether; dichloromethane; water T=20 - 30°C; 6 h; Inert atmosphereLarge scale reaction; 2: (S)-(-)-α,α-diphenyl-2-pyrrolidinemethanol in ethylene glycol dimethyl ether; dichloromethane T=25 - 30°C; 1 h; Inert atmosphere;

in pyridine byproducts: NH3, H2, C5H5N*BH3; addn. of a warm soln. (70°C) of hydrochloride in C5H5N to BH4-salt in C5H5N, warming to 50-55°C; distn. in vac.;; product-mixture of (C2H5)2(C6H5)N*BH3 and C5H5N*BH3; removal of C5H5N*BH3 at 65°C/1Torr;;

hydrogenchloride in tert-butyl methyl ether T=10 - 15°C; pH=1.5; 2 h; Large scale reaction;

phosphorus pentachloride in benzene T=15 - 20°C; Overall yield = 10.5 g;

hydrogenchloride T=70°C; activation energy; KineticsMechanism;