Gamma-Butyrolactone

Gamma-butyrolactone (γ-butyrolactone or gbl) is a hygroscopic colorless liquid with a weak characteristic odor which is soluble in water. gbl is a common solvent and reagent in chemistry as well as being used as a flavouring, as a cleaning solvent, as a superglue remover, and as a solvent in some wet aluminium electrolyte capacitors. in humans as acts as a prodrug for ghb, and it is used as a recreational intoxicant with effects similar to alcohol. Gfl has been found in extracts from samples of unadulterated wines. This finding indicates that gbl is a naturally occurring component in some wines and may be present in similar products. the concentration detected was approximately 5 μg/ml and was easily observed using a simple extraction Technique followed by gc/ms analysis. gbl can be found in cheese flavourings but typical results in a content of 0.0002% gbl in the final foodstuff. Gluc is a lactone. it is hydrolyzed under basic conditions, for example in a sodium hydroxide solution into sodium gamma-hydroxybutyrate, the sodium salt of gamma-hydroxybutyric acid. under acidic conditions it forms an equilibrium mixture of both compounds. Go to to form a polymer. when treated with a non-nucleophilic base, like lithium diisopropylamide, gbl can become an alpha-carbon nucleophile. the related compound caprolactone can be used to make a polyester in this manner. Uses： 1. Gbl can be used to produce a - pyrrolidone, 1 - methyl - 2 - pyrrolidinone, polyvinyl pyrrolidone, and α-acetyl-γ-butyrolactone, etc. 2. Gbl can be used as anaesthetic and tranquilizer, used to produce ciprofloxacin and interferon, as the intermediate of vitamin and rolicyprine; 3. Gbl is the intermediate plant growth stimulator and insecticide. 4. Gbl is a good antioxidant, plasticizer, extractant, adsorbent, dispersant, fixative and curing agent; moreover, it can also be used in battery, capacitor and development of color film

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