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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 221289Generated: October 30, 2026

Sodium Hydroxide → 7-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine

https://huagongshe.com/reaction/221289

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantN-Trifluoroacetyl-7-(4-bromo-2-Methyl-2H-pyrazol-3-yl)-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepineHCID 22292801—
SolventMethanolHCID 887—
Product7-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepineHCID 1006459098.2%

Reaction Steps

A solution of N-trifluoroacetyl-7-(4-bromo-2-Methyl-2H-pyrazol-3-yl)-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine (37 mg, 0.089 mmol) in methanol (2 mL) was treated with of 15% aqueous NaOH (2 mL), and stirred overnight at 20 C. The product mixture was concentrated, extracted 3 times with CH2Cl2 (5 mL), dried with Na2SO4 and the solvent evaporated. Flash chromatography (0-15% MeOH in CH2Cl2, silica) resulted in 28 mg of a clear oil. 1H NMR (400 MHz, CDCl3) d 7.50 (s, 1 H), 7.25 (d, J=8 Hz, 1 H), 7.17 (d, J=8 Hz, 1 H), 7.10 (s, 1 H), 3.83 (s, 3 H), 3.17 (m, 1 H), 3.1-2.9 (m, 8 H), 2.80 (dd, J=7, 13 Hz, 1 H), 2.48 (bs, 1 H), 1.40 (d, J=8 Hz, 3 H). MS calculated for C15H18BrN3+H: 320, observed: 320.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08207158B2
Source datasetuspto-grants-2012_06
ORD IDord-1683d58120064b8e83c1424d76542b73
Source noteuspto-grants-2012_06