A common heterocyclic compound, the tetrahydroisoquinoline compound, name is 1-Phenyl-1,2,3,4-tetrahydroisoquinoline,cas is 22990-19-8, mainly used in chemical industry, its synthesis route is as follows.
Racemic mixture of 1 -phenyl- 1, 2,3, 4-tetrahydroisoquinoline (40 g, 191 mmol) and D-(-)-tartaric acid (28.61 g, 191 mmol, ee 99%) are suspended in methanol (240 niL). The solution is heated to reflux, until the whole amount of solid is completely dissolved. The heating bath is being removed and to the clear solution water (120 mL) is added; the resulting mixture is left at ambient temperature (240C) for 24 h. Crystalline solid is filtered off (21.45 g). -17.02 (c=l%, H2O).Obtained crystalline solid is suspended in the mixture of 10% NaOHaq (120 mL) and ethyl acetate (50 mL), the solution is stirred at ambient temperature (240C) for about 10 min. until the whole amount of solid is dissolved. The reaction mixture is transferred into separatory flask, organic layer is separated and water phase is extracted with ethyl acetate (2×30 mL). Combined organic extracts are washed with water (1×40 mL), dried and condensed under vacuum to dryness. (S)-1-Phenyl- 1,2,3, 4-tetrahydroisoquinoline is obtained as crystalline solid (12 g, 30%), of enantiomeric excess ee = 100%. Chemical purity (HPLC): 99.96%; [alpha]25D = 38.20 (c=l%, CH2Cl2).
22990-19-8, As the rapid development of chemical substances, we look forward to future research findings about 22990-19-8
Reference£º
Patent; ZAKLADY FARMACEUTYCZNE POLPHARMA SA; WO2009/142521; (2009); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem