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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1833287Generated: October 27, 2026

Acetamidine monohydrochloride → Diethyl 1-amino-1-methylmethyleneaminocarbonylphosphonate

https://huagongshe.com/reaction/1833287

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetamidine monohydrochlorideHCID 67170—
ReactantPhosphinecarboxylic acid, 1,1-diethoxy-, methyl ester, 1-oxideHCID 170573—
SolventTetrahydrofuranHCID 8028—
ProductDiethyl 1-amino-1-methylmethyleneaminocarbonylphosphonateHCID 54283790—

Reaction Steps

A solution of 98 parts of diethyl methoxycarbonylphosphonate plus 47 parts of acetamidine hydrochloride in 1000 parts of anhydrous tetrahydrofuran can be refluxed for 8 hours and the solvent then removed under reduced pressure to give diethyl 1-amino-1-methylmethyleneaminocarbonylphosphonate. In a similar manner, starting with the appropriate alkoxycarbonylphosphonate and imino compounds, the following compounds can be prepared:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04066434
Source datasetuspto-grants-1978_01
ORD IDord-86fc9fb571a944cbafec8910d46961a9
Source noteuspto-grants-1978_01