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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2187084Generated: October 31, 2026

Ethyl vinyl ether → 1-Methyl-4-ethoxy-2-azetidinone

https://huagongshe.com/reaction/2187084

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl vinyl etherHCID 8023—
ReactantMethyl IsocyanateHCID 12228—
SolventTolueneHCID 1140—
Product1-Methyl-4-ethoxy-2-azetidinoneHCID 1525249116%

Reaction Conditions

Temperature130 °C

Reaction Steps

A Teflon tube containing a mixture of 0.16 g (2.8 mmoles) of methyl isocyanate, 0.27 g (3.8 mmoles) of ethyl vinyl ether and 2 ml of toluene was sealed and introduced into a high-pressure reactor and the mixture was heated at 130° C. under a pressure of 8000 atmospheres for 20 hours. The reaction mixture taken out was evaporated and then purified by distillation under reduced pressure to obtain 1-methyl-4-ethoxy-2-azetidinone in a yield of 16% of the theoretical value.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06407228B1
Source datasetuspto-grants-2002_06
ORD IDord-eda846f2fbf047dea96db40f2dd894d4
Source noteuspto-grants-2002_06