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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1035132Generated: November 1, 2026

Sodium Hydroxide → 7-Methoxy-1-methyl-8-(2-thienyl)-2,3,4,5-tetrahydro-1H-3-benzazepine

https://huagongshe.com/reaction/1035132

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 22292774HCID 22292774—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product7-Methoxy-1-methyl-8-(2-thienyl)-2,3,4,5-tetrahydro-1H-3-benzazepineHCID 1033351186.6%

Reaction Conditions

Temperature50 °C

Reaction Steps

A solution of N-trifluoroacetyl-7-methoxy-1-methyl-8-(2-thienyl)-2,3,4,5-tetrahydro-1H-3-benzazepine (28 mg, 0.076 mmol) in methanol (2 mL) was treated with 15% aqueous NaOH (2 mL), and stirred 0.5 hours at 50° C. The product mixture was diluted with water (5 mL), extracted twice with EtOAc (5 mL), the combined organic phases were washed with brine (5 mL), dried with Na2SO4 and concentrated to give 18 mg of a yellow oil. 1H NMR (400 MHz, CDCl3) δ 7.45 (d, J=4 Hz, 1H), 7.39 (s, 1H), 7.27 (d, J=6 Hz, 1H), 7.07 (dd, J=4, 6 Hz, 1H), 6.71 (s, 1H), 3.90 (s, 3H), 3.1-2.9 (m, 6H), 2.80 (m, 1H), 2.22 (bs, 1H), 1.38 (d, J=7 Hz, 3H). MS calculated for C16H19NOS+H: 274, observed: 274.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08546378B2
Source datasetuspto-grants-2013_10
ORD IDord-4e7a99137d24427d8b7cf9e2e7aecc18
Source noteuspto-grants-2013_10