Phenoxyacetophenone could be prepared from potassium phenolate and m bromoacetophenone via Ullmann reaction catalyzed by copper acetate in high yields.
An efficient palladium-cocatalyst system for vinylation of unsaturated carboxylic acid has been exploited,among which aliphatic amines(ALA)are firstly used as cocatalysts.
Using the method of latex polymerization,poly vinyl acetate was synhesized with PVA as protective colloid,which was crosslinked with formylamine-group containing component.
METHODS The gel was prepared by taking mafenide acetate and dyclonine hydrochloride as main components,carboxymethylcellulose sodium and glycerol as base material.
After ethanol extracted hepaticglycogen, it was identified by indic colorific mensuration and quantified with anthrone mensuration.Finally, experimentative design was bringed forward.
The test for treatment of waste water from acetic acid and acetic anhydride production by using anaerobic digestion-aerophile biochemical method is described.