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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1859261Generated: October 30, 2026

Formaldehyde → N-methyl-N-(phosphonomethyl)glycine

https://huagongshe.com/reaction/1859261

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantSulfuric AcidHCID 1118—
ReactantPhosphorous acidHCID 107909—
ReactantN-Acetyl-N-methylglycineHCID 10975514—
SolventWaterHCID 962—
ProductN-methyl-N-(phosphonomethyl)glycineHCID 54149998%

Reaction Conditions

Temperature120 °C

Reaction Steps

N-acetyl sarcosine (XX) (2.0 g, 15.3 mmole), phosphorous acid (1.25 g, 15.3 mmole) were mixed with concentrated sulfuric acid (3.1 g) and water (1.7 g) then refluxed in a 120° C. oil bath. Formalin, 37% (1.4 g, 16.7 mmole) was added dropwise over 20 min. and the reaction was continued for an additional 18 h. 31 p NMR analysis indicated 98% yield of (XXI) based on mmoles of (XX) charged.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06153753
Source datasetuspto-grants-2000_11
ORD IDord-4e18c5d7e7624ed9b2a6a1efe0d8d487
Source noteuspto-grants-2000_11