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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1629971Generated: October 30, 2026

Hydrazine hydrate (1:1) → HCID 21332725, compound

https://huagongshe.com/reaction/1629971

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 211864HCID 211864—
SolventEthanolHCID 702—
ProductHCID 21332725HCID 2133272595.4%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a stirred solution of 1-(3,4-dimethoxyphenyl-3-(dimethylamino)propan-1-one (2.9 g, 0.0122 moles, 1 equiv.) in absolute ethanol was added hydrazine hydrate (99%-100%) (1.18 ml, 0.0244 moles, 2 equiv) drop wise. After that the reaction mixture was refluxed for 4 h at 80° C. under inert atmosphere. Consumption of starting materials was confirmed by LC-MS analysis and TLC. Ethanol and excess hydrazine hydrate was evaporated under reduced pressure and to the crude product was stirred with diethyl ether at RT for 30 mins, filtered washed with ether and finally dried under vacuum to get 2.4 g (95% yield) of the title product as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791114B2
Source datasetuspto-grants-2014_07
ORD IDord-229cdc57d4a5460b8590adb6594a944a
Source noteuspto-grants-2014_07