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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1689679Generated: October 30, 2026

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

https://huagongshe.com/reaction/1689679

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 Conditions

Temperature20 °C

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) δ 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 numberUS08153621B2
Source datasetuspto-grants-2012_04
ORD IDord-98a2f969f00d4fd4a859e799b95944b2
Source noteuspto-grants-2012_04