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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 37048Generated: October 29, 2026

Hydrochloric Acid → 1,2-Diamino-1-benzyloxymethyl-ethane-dihydrochloride

https://huagongshe.com/reaction/37048

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1-Amino-2-benzyloxymethyl-1-phthalimido-ethaneHCID 19438515—
SolventMethanolHCID 887—
Product1,2-Diamino-1-benzyloxymethyl-ethane-dihydrochlorideHCID 19438529—

Reaction Steps

1-Amino-2-benzyloxymethyl-1-phthalimido-ethane (3.0 g, 9.7 mmol) is dissolved in 50 ml dry methanol and hydrazine hydrate (968 mg, 19.3 mmol) is added. After being refluxed for 4 hours, the reaction mixture is stirred for 24 hours at ambient temperature and 50 ml 2N hydrochloric acid was added. The phthalhydrazide is removed by filtration and the 1,2-diamino-1-benzyloxymethyl-ethane-dihydrochloride is purified by recrystallisation from dry ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05419893
Source datasetuspto-grants-1995_05
ORD IDord-fe6abeba695a46a998522449dc55787f
Source noteuspto-grants-1995_05