Brief introduction of 42923-79-5

The synthetic route of 42923-79-5 has been constantly updated, and we look forward to future research findings.

42923-79-5, 7-Nitro-1,2,3,4-tetrahydroisoquinoline is a tetrahydroisoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

1. To the mixture of 1 (4 g, 22.5 mmol) in sat. aq. NaHCC>3 (50 mL) and THF (50 mL) was added BOC2O (5.63 g, 25.8 mmol) and the resulting mixture was stirred at RT for 16 h. The mixture was concentrated and the residue was extracted with EtOAc, and the combined organic phase was washed with brine, dried over Na2S04, filtered, concentrated and purified by chromatography on silica gel to give 2 (5.8 g, 93.5% yield) as a brown solid. MS (ESI): mass calcd. for Ci4H18N204 278.31, m/z found 301.0 [M+Na]+.

The synthetic route of 42923-79-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; FORGE LIFE SCIENCE, LLC; REMISZEWSKI, Stacy; CHIANG, Lillian W.; MURPHY, Eain Anthony; KAYSER, Frank; SUN, Qun; FINK, Sarah Jocelyn; (128 pag.)WO2019/79519; (2019); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

 

New learning discoveries about 22990-19-8

As the paragraph descriping shows that 22990-19-8 is playing an increasingly important role.

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.

EXAMPLE 1 Preparation of phenyl 1-phenyl-3,4-dihydro-1H-isoquinoline-2-carboxylate (II) A solution of racemic 1-phenyl-1,2,3,4-tetrahydro-isoquinoline (100 mg, 0.48 mmols) in tetrahydrofuran (500 mul) is added with diphenyl carbonate (102.36 mg, 0.48 mmols) and dimethylaminopyridine in catalytic amount and refluxed. After completion of the reaction, the solvent is evaporated off under reduced pressure and the product is isolated by flash chromatography. The title product is obtained as a yellow oil in 75% yield. 1-H-NMR (400 MHz, CDCl3) delta 2.85-2.94 (1H, m), 3.10-3.21 (1H, m), 3.35-3.56 (1H, br s), 4.22-4.31 (1H, m), 6.54-6.59 (1H, s), 7.09-7.44 (15H, m).

As the paragraph descriping shows that 22990-19-8 is playing an increasingly important role.

Reference£º
Patent; Dipharma Francis S.r.l.; US2009/203915; (2009); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem