1: With hydrogen iodide Reflux; 2: stereoselective reaction;

hydrogenchloride; Dowex 50-WX8; acetic acid; trifluoroacetic acid 1.) CH2Cl2, 30 min, 0 deg C; 12 h, room temperature; 2.) 100-105 deg C, toluene, water, 58 h; Yield given. Multistep reaction;

acylase I enzyme Yield given. Multistep reaction;

water-d2 T=40°C; 0.166667 h; alanine racemase, phosphate buffer; other temperature (50 deg C), various pD, other time; racemisation of D- and L-alanines in deuterium oxide with alanine racemase of Bacillus stearothermophilus; Rate constantProduct distribution;

water-d2 T=40°C; 0.166667 h; alanine racemase, phosphate buffer; other temperature (50 deg C), various pD, other time; racemisation of D- and L-alanines in deuterium oxide with alanine racemase of Bacillus stearothermophilus; Rate constantProduct distribution;