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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2400148Generated: November 1, 2026

Gamma-Butyrolactone → Gamma-Butyrolactone

https://huagongshe.com/reaction/2400148

Reaction equation

Participants

RoleNameHCIDCharge
ReactantGamma-ButyrolactoneHCID 7302—
ReactantDimethylethylamineHCID 11723—
ReactantDimethyl CarbonateHCID 12021—
ProductGamma-ButyrolactoneHCID 7302—
Productalpha-MethylbutyrolactoneHCID 98323—

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture of 21.5 g (250 mmol) of gamma-butyrolactone, 45 g (500 mmol) of dimethyl carbonate and 0.93 g (12.5 mmol) of dimethylethylamine was heated to 200° C. in an autoclave and stirred at this temperature for 5 hours. After cooling, 13.3 g (53%) of 2-methylbutyrolactone (selectivity 74%) and 6 g of unreacted gamma-butyrolactone were obtained by quantitative gas-chromatographic analysis of the discharged reaction mixture.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05453516
Source datasetuspto-grants-1995_09
ORD IDord-16baec6b538c4c138f29c67faa1fc50f
Source noteuspto-grants-1995_09