4A molecular sives; potassium methanolate Product distribution;

potassium fluoride; N-benzyl-N,N,N-triethylammonium chloride in dichloromethane 3 h;

aluminum oxide; methanesulfonic acid T=80°C; 3 h;

4 A molecular sieve; potassium methanolate in methanol Product distribution;

fast atom bombardment mass spectrometry conditions or methanol solution, ratio of stability constants for complexes with R- and S-phenylethylammonium cations assuming approximate equilibrium or steady state process; Equilibrium constant;

FAB MS conditions, mean value (relative to phenylethylammonium and corresponding S,S-dimethyl substituted crown ether) and ratio of stability constants for complexes with R- and S-phenylethylammonium cations for FAB or methanol solution; Equilibrium constant;