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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 621452Generated: November 1, 2026

Hydrochloric Acid → HCID 21242957, compound

https://huagongshe.com/reaction/621452

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDimethyl DisulfideHCID 12232—
ReactantHCID 21242899HCID 21242899—
ReactantButyllithiumHCID 178418339—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
ProductHCID 21242957HCID 21242957—

Reaction Steps

A solution of 6-bromo-8-methoxy-3-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine (2.7 g, 0.01 m) in toluene (30 ml) is added to a solution of n-butyl lithium (0.044 m) in toluene (15 ml) stirred at -78°. The mixture is stirred for thirty minutes, treated with a solution of methyl disulfide (8.2 g, 0.087 m) in toluene (10 ml), stirred for fifteen minutes and poured into water (125 ml). The mixture is acidified with 10% hydrochloric acid and the aqueous phase is washed with ether, made alkaline with aqueous sodium hydroxide and extracted with ethyl acetate. The ethyl acetate extract is washed, dried with sodium sulfate and concentrated in vacuo to give 8-methoxy-3-methyl-6-methylthio-2,3,4,5-tetrahydro-1H-3-benzazepine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04824839
Source datasetuspto-grants-1989_04
ORD IDord-a73879a87b104c0d81b20f0c831b2261
Source noteuspto-grants-1989_04