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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 457003Generated: October 27, 2026

Carbon Dioxide → 3,5-Dimethyl-1,3-oxazolidin-2-one

https://huagongshe.com/reaction/457003

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon DioxideHCID 280—
ReactantMethylamineHCID 6329—
Reactant1,2-DichloropropaneHCID 6564—
Product3,5-Dimethyl-1,3-oxazolidin-2-oneHCID 13432443—
Product3,4-Dimethyl-1,3-oxazolidin-2-oneHCID 13547989—

Reaction Conditions

Temperature160 °C

Reaction Steps

1.10 g of 1,2-dichloropropane and 7.18 g of a 40% methylamine aqueous solution were charged in a 20 ml pressure vessel made of SUS316 and 2.11 g of a carbon dioxide gas was absorbed under a pressure of about 0.5 MPa, followed by heating at 160° C. for 4 hours. As a result, 3,4-dimethyl-1,3-oxazolidin-2-one and 3,5-dimethyl-1,3-oxazolidin-2-one were obtained in a total yield of 64% and 1,3,4-trimethylimidazolidin-2-one was obtained in a 23% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07186844B2
Source datasetuspto-grants-2007_03
ORD IDord-0843a39209e84f0b9637debc40425a93
Source noteuspto-grants-2007_03