Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 239115Generated: October 28, 2026

Hydrochloric Acid → 4-phenyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-d]azepine hydrochloride

https://huagongshe.com/reaction/239115

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant7-benzyl-4-phenyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-d]azepineHCID 86686040—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product4-phenyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-d]azepine hydrochlorideHCID 86686041—

Reaction Conditions

Temperature80 °C

Reaction Steps

Palladium charcoal was added to 17 g 7-benzyl-4-phenyl-6,7,8,9-tetrahydro-5H-pyrimido[4,5-d]azepine in 250 mL ethanol and 54 mL 1 M HCl solution. The reaction was stirred at 80° C. and 5 bar hydrogen. The mixture was filtered and evaporated to give 13.1 g of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642774B2
Source datasetuspto-grants-2014_02
ORD IDord-4dc2ba35a35e4bf9afeaba733ac24140
Source noteuspto-grants-2014_02