Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

90047-53-3

6-METHOXY-2,3,4,5-TETRAHYDRO-1H-BENZO[D]AZEPINE synthesis

7synthesis methods
2,2,2-trifluoro-1-(6-methoxy-1,2,4,5-tetrahydro-3H-benzo[d]azepin-3-yl)ethan-1-one

488838-92-2
1 suppliers
inquiry

-

Yield:90047-53-3 96%

Reaction Conditions:

with trifluoroacetic acid;sodium hydroxide in water at 20; for 4 h;

Steps:

4.1.5. General produce for the preparation of 2,3,4,5-tetrahydro-1Hbenzo[d]azepine

General procedure: Practical synthesis of regioisomeric 6- and 7-Methoxytetrahydro-3-benzazepines has been reported accordingto Organic Process Research & Development 2010, 14, 380e385.Removal of trifluoroacetyl could be effective with NaOH in THF/H2Omixed solution. The mixture was stirred at room temperature for4 h and extracted by ethyl acetate. The organic layer was thenconcentrated under reduced pressure and used for the next stepwithout further purification.7-Methoxy-2,3,4,5-tetrahydro-1H-benzo[d]azepine (37a):2.5 G, 96%, colorless oil; 1H NMR (600 MHz, DMSO-d6)d 2.70e2.80 (m, 8H), 2.96 (s, 1H), 3.70 (s, 3H), 6.61 (dd, J 8.1,2.7 Hz, 1H), 6.68 (d, J 2.7 Hz, 1H), 6.98 (d, J 8.2 Hz, 1H)

References:

Guo, Zheng;Zhang, Zixue;Zhang, Yi;Wang, Guan;Huang, Ziyi;Zhang, Qinwei;Li, Jianqi [European Journal of Medicinal Chemistry,2021,vol. 218,art. no. 113383]