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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 462077Generated: November 1, 2026

Formaldehyde → Oxotremorine 1

https://huagongshe.com/reaction/462077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantAcetamide, N-methyl-N-[2-propynyl]-HCID 29033—
ReactantPyrrolidineHCID 31268—
Solvent1,4-DioxaneHCID 31275—
ProductOxotremorine 1HCID 19716—

Reaction Steps

Under a nitrogen atmosphere, a solution containing 13.0 g. (0.12 mole) of N-methyl-N-propargylacetamide, 5.8 g. of paraformaldehyde, 10.5 g. (0.15 mole) of pyrrolidine and a trace of cuprous chloride in 80 ml. of dioxane was refluxed for 5 hrs. and allowed to stand overnight. The mixture was filtered remaining oil was distilled and redistilled giving N-methyl-N-(4-pyrrolidino-2-butynyl)acetamide, boiling at 120° C. at 0.03 mm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04065471
Source datasetuspto-grants-1977_12
ORD IDord-ed98a0d44b504502b844f3326f398ecc
Source noteuspto-grants-1977_12