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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1885501Generated: October 31, 2026

Ethanol → HCID 19878630, compound

https://huagongshe.com/reaction/1885501

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 19878626HCID 19878626—
CatalystIronHCID 23925—
SolventAcetic AcidHCID 176—
ProductHCID 19878630HCID 19878630—

Reaction Conditions

Temperature80 °C

Reaction Steps

3.3×10-2 mole (10 g) of 2-(N-benzyloxycarbonyl -N-methylamino)-5-nitrophenol is added to 40 g of iron powder in 60 ml of 96° strength ethanol mixed with 20 ml of acetic acid brought to 80° C., the temperature being maintained at 80° C. When the addition is complete, heating is maintained for 30 minutes. The inorganic salts present in the reaction medium are removed by filtration while hot. The filtrate is diluted with 800 ml of ice-cold water. 3.7×10-2 mole (3.5 ml) of acetic anhydride is then added. The expected product crystallizes after 3 hours. After filtration and drying, the product obtained is recrystallized from a water/ethanol mixture. It then melts at 174° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05145483
Source datasetuspto-grants-1992_09
ORD IDord-11d1e49f7eeb41b0a3223b16f6439ca5
Source noteuspto-grants-1992_09