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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 247438Generated: October 31, 2026

Formaldehyde → HCID 12928531, compound

https://huagongshe.com/reaction/247438

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant7-Bromo-2,3,4,5-tetrahydro-8-methoxy-1-phenyl-1H-3-benzazepineHCID 10520553—
SolventFormic AcidHCID 284—
ProductHCID 12928531HCID 12928531—

Reaction Steps

7-Bromo-8-methoxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine (9.6 g, 0.03 m), 37% formalin (27 ml) and 95% formic acid (38 ml) were mixed and heated to reflux for 16 hours. The mixture was concentrated in vacuo, treated with 10% hydrochloric acid (70 ml) and concentrated in vacuo. The residue was partitioned between ethyl acetate and ammonium hydroxide to give 7-bromo8-methoxy-3-methyl-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04707483
Source datasetuspto-grants-1987_11
ORD IDord-5037663d33ac4d65a967dd19115ca748
Source noteuspto-grants-1987_11