A novel microwave assisted surfactant pretreatment strategy was evaluated for the production of bioethanol and biopolymer from chili post-harvest residue. Among the various surfactants screened microwave assisted Tween - 20 pretreatment was found to be mor ...
Background: Total (i.e. free + sulfated) metanephrines in plasma is a biomarker for the diagnosis of pheochromocytoma/paraganglioma. Sulfated metanephrines must be completely deconjugated by perchloric acid hydrolysis or sulfatase treatment prior to analyt ...
The organic functional group composition of particles produced in laboratory smog chambers were characterized by scanning transmission X-ray microscopy (STXM) with near-edge X-ray absorption fine structure (NEXAFS) spectroscopy and characteristic spectral ...
The influence of temperature and moisture activity on the viscoelastic behavior of fluorinated membranes for fuel cell applications was investigated. Uncrosslinked and crosslinked ethylene tetrafluoroethylene (ETFE)-based proton-conducting membranes were p ...
Effects of methanol solvent on characteristics of water-methanol solvated sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) (SPPO) membranes were investigated at different methanol concentrations and temperatures using molecular dynamics simulations. Simul ...
The reactivity of stable tertiary enamides in nucleophilic addition reaction with various in-situ generated imines was explored. Under very mild conditions, formyl-bearing tertiary enamides reacted with both aromatic and aliphatic amines to form imine inte ...
Catalyzed by p-toluenesulfonic acid in dry acetonitrile, oxirane-containing tertiary enamides underwent efficient cyclization via intramolecular addition to produce 3-hydroxy-3,4-dihydropyridin-2(1H)-one derivatives in moderate to good yields. ...
The first ene reactions of SO2 and unfunctionalized alkenes are reported. Calculations suggest that the endergonic ene reactions of SO2 with alkenes can be used to generate beta,gamma-unsaturated sulfinyl and sulfonyl compounds. Indeed, in the presence of ...
