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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1682294Generated: November 2, 2026

Trimethyl phosphite → E-2-formylamino-4-ethyl-5-dimethylphosphono-3-pentenoic acid ethyl ester

https://huagongshe.com/reaction/1682294

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethyl phosphiteHCID 8472—
ReactantThionyl bromideHCID 68176—
Reactant2-Formylamino-3-hydroxy-4-ethyl-4-pentenoic acid ethyl esterHCID 21667299—
ProductE-2-formylamino-4-ethyl-5-dimethylphosphono-3-pentenoic acid ethyl esterHCID 86745086—

Reaction Steps

Reaction of the 2-formylamino-3-hydroxy-4-ethyl-4-pentenoic acid ethyl ester with thionyl bromide and subsequent treatment with trimethyl phosphite in a manner analogous to that described in Example 1 yields E-2-formylamino-4-ethyl-5-dimethylphosphono-3-pentenoic acid ethyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05175344
Source datasetuspto-grants-1992_12
ORD IDord-d55549aefd1b4fa1a10d140c935669a6
Source noteuspto-grants-1992_12