Some tips on 22990-19-8

22990-19-8, 22990-19-8 1-Phenyl-1,2,3,4-tetrahydroisoquinoline 100137, atetrahydroisoquinoline compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.22990-19-8,1-Phenyl-1,2,3,4-tetrahydroisoquinoline,as a common compound, the synthetic route is as follows.

To a 250 mL three neck flask water (70 mL) and (R/S)-l -phenyl- 1,2,3,4- tetrahydroisoquinoline (20 g) were charged. Reaction mixture was heated to 65-70 C. D-(-)-tartaric acid dissolved in water (20 mL) was added to the reaction mixture at 65- 70 C and stirred for 30 minutes. The reaction mixture was further heated to 90-95 C and stirred for 1 h. The reaction mixture was cooled to 55 C. To the clear solution 0.250 g seeding of (S)-l-phenyl-l,2,3,4-tetrahydroisoquinoline was added. Reaction mixture was further cooled to 32-35 C and stirred for 30 minutes. Solid product was filtered and washed with cold water. It was dried in a fan dryer at 70-80 C till constant weight obtained. The (S)-l -phenyl- 1,2,3,4-tetrahydroisoquinoline was obtained. (Yield- 40.0 %, % Chemical purity-98.0 %, % Chiral purity of S-isomer-97.2 %).

22990-19-8, 22990-19-8 1-Phenyl-1,2,3,4-tetrahydroisoquinoline 100137, atetrahydroisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; CADILA HEALTHCARE LIMITED; KOTHARI, Himanshu M.; DAVE, Mayank Ghanshyambhai; PANDEY, Bipin; WO2011/48607; (2011); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem