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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2108524Generated: October 31, 2026

Sodium Hydroxide → 8-Bromo-7-ethoxy-1-methyl-2,3,4,5-tetrahydro-1H-benzo[d]azepine

https://huagongshe.com/reaction/2108524

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantN-Trifluoroacetyl-8-bromo-7-ethoxy-1-methyl-2,3, 4,5-tetrahydro-1H-3-benzazepineHCID 22292768—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product8-Bromo-7-ethoxy-1-methyl-2,3,4,5-tetrahydro-1H-benzo[d]azepineHCID 1040160294.7%

Reaction Steps

A solution of N-trifluoroacetyl-8-bromo-7-ethoxy-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine (0.010 g, 0.026 mmol) in methanol (1 mL) was treated with 15% aqueous NaOH (1 mL), and stirred overnight at 20 C. The product mixture was diluted with water (3 mL), extracted twice with EtOAc (5 mL), the combined organic phases were washed with brine (3 mL), dried with Na2SO4 and concentrated to give 0.007 g of a clear oil. 1H NMR (400 MHz, CDCl3) d 7.29 (s, 1H), 6.63 (s, 1H), 4.07 (q, J=6 Hz, 2H), 3.03 (m, 3H), 2.91 (m, 3H), 2.73 (m, 1H), 2.26 (bs, 1H), 1.46 (t, J=6 Hz, 3H), 1.32 (d, J=7 Hz, 3H). MS calculated for C15H17BrF3NO2+H: 380, observed: 380.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07514422B2
Source datasetuspto-grants-2009_04
ORD IDord-d0c4bc8d3ebb48e2b259d87410f57fab
Source noteuspto-grants-2009_04