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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 542731Generated: November 1, 2026

Formaldehyde → 3-methyl-8-methoxy-7-methylsulfonyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochloride

https://huagongshe.com/reaction/542731

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant8-methoxy-7-methylsulfonyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochlorideHCID 21242875—
CatalystPlatinum oxide (PtO)HCID 82844—
SolventEthanolHCID 702—
Product3-methyl-8-methoxy-7-methylsulfonyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochlorideHCID 21242916—

Reaction Steps

A mixture of 8-methoxy-7-methylsulfonyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochloride (1 g, 3.5 mmol), 37% aqueous formaldehyde (1.1 g) and platinum oxide (0.1 g) in ethanol (25 ml) was shaken under an atmosphere of hydrogen (60 psi). The mixture was degassed, filtered and concentrated at reduced pressure to give 3-methyl-8-methoxy-7-methylsulfonyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04659706
Source datasetuspto-grants-1987_04
ORD IDord-7f2269fdc3ed4402b0af7340f73ee0d8
Source noteuspto-grants-1987_04