Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 645418Generated: November 2, 2026

Methylamine → HCID 68579573, compound

https://huagongshe.com/reaction/645418

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
ReactantSodium CarbonateHCID 10340—
Reactant1,1'-Biphenyl, 4,4'-dibromo-2,2'-bis(bromomethyl)-HCID 3559894—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68579573HCID 6857957399.4%

Reaction Steps

MeNH2 (4.9 mL, 9.87 mmol) and Na2CO3 (0.349 g, 3.29 mmol) were added to a THF (6.5 mL) solution of 4,4′-dibromo-2,2′-bis(bromomethyl)biphenyl (0.328 g, 0.658 mmol), and the reaction mixture was refluxed for 3 hours. The volatile component was removed in vacuo, and the residue was passed through MCX (CH3OH wash; 2.0 M NH3/CH3OH elution) to afford 3,9-dibromo-6-methyl-6,7-dihydro-5H-dibenzo[c,e]azepine as a white solid (0.24 g). 1H NMR (DMSO-d6, δ=2.50, 500 MHz): 2.31 (s, 3H), 3.24 (s, 4H), 7.47 (d, J=7.9, 2 H), 7.55-7.82 (m, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07704992B2
Source datasetuspto-grants-2010_04
ORD IDord-929616dee64c4493bb0b30ee4e202fc2
Source noteuspto-grants-2010_04