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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1151Generated: October 23, 2026

Gamma-Butyrolactone → 3-(Aminomethyl)-3-methyl-2,3,4,6,7,8-hexahydropyrrolo[1,2-a]pyrimidine

https://huagongshe.com/en/reaction/1151

Reaction equation

Participants

RoleNameHCIDCharge
ReactantGamma-ButyrolactoneHCID 7302—
ReactantAmmonium ChlorideHCID 25517—
Reactant2-(Aminomethyl)-2-methyl-1,3-propanediamineHCID 4526530—
SolventWaterHCID 962—
Product3-(Aminomethyl)-3-methyl-2,3,4,6,7,8-hexahydropyrrolo[1,2-a]pyrimidineHCID 18407487—

Reaction Conditions

Temperature250 °C

Reaction Steps

A mixture of 21.03 g (0.24 mol) of γ-butyrolactone and 1.31 g (24 mmol) of ammonium chloride in 114.5 g (0.98 mol) of 1,1,1-tris(aminomethyl)ethane was heated at 250° C. in an autoclave. After 1.5 h, the mixture was cooled and the excess amine and the water formed were removed by distillation. The residue was distilled at 200°-240° C./18 mbar. The yield was 22.0 g (54%) of yellowish oil. The boiling point was 117°-120° C./1 mbar. Other data concerning the product was:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05723605
Source datasetuspto-grants-1998_03
ORD IDord-58e35fa5d3104b07bb1cd637b9c2a80b
Source noteuspto-grants-1998_03