1.1: potassium carbonate / acetone; N,N-dimethyl-formamide / 20 h / 60 °C / |Reflux; |Large scale 2.1: sodium methylate / methanol / 10 - 40 °C / |Large scale 2.2: 2.5 h / 10 - 15 °C / |Large scale 3.1: zinc / acetic acid / 20 h / 40 - 45 °C / |Large scale 4.1: hydrogen; palladium 10 on activated carbon / methanol / 96 h / 20 °C / 900.09 Torr / |Large scale 5.1: Bacillus licheniformis protease; sodium hydroxide / aq. phosphate buffer / 9 h / 20 °C / pH 7.5 / |Resolution of racemate; |Enzymatic reaction 6.1: hydrogenchloride / aq. phosphate buffer / 2 h / 100 °C View Scheme

1: Bacillus licheniformis protease; sodium hydroxide / aq. phosphate buffer / 9 h / 20 °C / pH 7.5 / |Resolution of racemate; |Enzymatic reaction 2: hydrogenchloride / aq. phosphate buffer / 2 h / 100 °C View Scheme

Titanium(IV) oxide in water T=20°C; pH=6.5; UV-irradiation; Kinetics; ConcentrationpH-value;

iron(II) ammonium sulfate; 3H2N; (His)6-tagged Streptomyces coeruleoribudus phenylalanine hydroxylase homologue PacX; oxygen T=20°C; pH=6; aq. phosphate buffer; Kinetics; Reagent/catalystpH-value; regioselective reaction;

hydrogenchloride; hydrogen-oxygen flame in water 0.416667 h; pH = 3; Product distribution;

acetyl chloride Ambient temperature;

in ethanol Ambient temperature;

triethylamine 1.) DMF, 2 d, 2.) dioxan/water, 24 h;

1: tyrosine hydroxylase 2: tyrosine transaminase View Scheme

tyrosine hydroxylase