Succinic acid, one of the most important platform chemicals is used as a precursor for many industrial important chemicals such as adipic acid, 1,4-butanediol, tetrahydrofuran, N-methyl pyrrolidinone
, 2-pyrrolidinone, succinate salts and gamma-butyrolactone (1).
KYNAR 761 grade PVDF and N-methyl pyrrolidinone
was obtained from Arkema Chemicals Company and Sigma Aldrich, respectively.
After being mixed in N-methyl pyrrolidinone
(NMP), the mixed slurry was spread uniformly on a copper foil and dried in vacuum for 12 h at 120[degrees]C.
GABA is also produced synthetically from the organic solvent pyrrolidinone
. Structurally the GABA molecules produced are the same.
The polymer blend consisting of (polyvinyl alcohol (90 wt.%), polyvinyl pyrrolidinone
and (5 wt.%) polyethylene glycol (5 wt.%) were prepared by using casting method.
Among the twelve samples investigated, the extracted oils from extractions alone and combined processes mainly contained aliphatics, including long-chain n-alkanes and 1-alkenes, and a small amount of aromatics, alcohol, phenol and pyrrolidinone
. A semi-quantitative study was made using the percentage of area of chromatographic peaks, to determine the fraction distribution of hydrocarbons in the oil.
Keywords: Cellulose Cellulose xanthate Ethylmethacrylate 1-vinyl-2-pyrrolidinone 1-vinyl-3-anisylidine-2- pyrrolidinone
(2012) reported the stigmasterol AY-amyrin friedelin and R (+) 4-hydroxy-2- pyrrolidinone
as antimicrobial compounds present in the methanolic extract obtained from the leaf of Jatropha tanjorensis.
(NMP) was purchased from Merckand purified by distillation over phosphorous pentoxide under reduced pressure.
Soot spectral features and hydrodynamic diameter were evaluated in N-methyl pyrrolidinone
(NMP) suspensions obtained by using an ultrasonic bath.
May et al., "Synthesis of insulin-like growth factor I using N-methyl pyrrolidinone
as the coupling solvent and trifluoromethane sulphonic acid cleavage form the resin," International Journal of Peptide and Protein Research, vol.36, no.4, pp.356-361, 1990.
Ceftobiprole is a pyrrolidinone
-3- ylide-methyl cephalosporin and was formerly designated as BAL 9141/RO 63-9141 (Figure 3A).