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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2412658Generated: November 1, 2026

Hydrochloric Acid → 2-(5-Bromothiophen-2-yl)ethan-1-amine--hydrogen chloride (1/1)

https://huagongshe.com/reaction/2412658

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiisopropyl EtherHCID 7914—
ReactantPhosphoramidic acid, ion(2-)HCID 211207—
Reactantdiethyl N-[2-(5-bromothien-2-yl)-ethyl]-phosphoramidateHCID 13740538—
Product2-(5-Bromothiophen-2-yl)ethan-1-amine--hydrogen chloride (1/1)HCID 1313155960%

Reaction Steps

A solution containing 3.42 g. (0.01 mol) diethyl N-[2-(5-bromothien-2-yl)-ethyl]-phosphoramidate in 50 ml. diisopropyl ether saturated with hydrogen chloride is stirred overnight at ambient temperature. The crystals formed are filtered off and washed with diisopropyl ether. After drying, there is obtained 1.45 g. (yield: 60%, referred to the phosphoramidate used) of the desired product in the form of silverygrey flakes; m.p. 220° C. (decomposition)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04493931
Source datasetuspto-grants-1985_01
ORD IDord-27c98e0b85574fae9430a1f6c1868a03
Source noteuspto-grants-1985_01