The Si[O.sub.2] nanoparticle chain transfer agent (SiOrCTA) was prepared via the esterification of the hydroxyl on the surface of the Si[O.sub.2] nanoparticles with 2-methyl-2-[(dodecylsulfanylthiocarbonyl) sulfanyl] propanoic acid
. Typically, Si[O.sub.2]-0H (60.000 g), 2-methyl-2-[(dodecylsulfanylthiocarbonyl)sulfanyl] propanoic acid
(14.560 g, 40 mmol), EDC (7.640 g, 40 mmol), DMAP (0.488 g, 4 mmol), and dichloromethane (300 mL) were added to a flask containing a magnetic stirrer.
The Compounds of (E)-2-(3-cinnamoyl thiouredio)-3-(1H-indol-3-yl)propanoic acid, 4, (E)-2-(3-cinnamoyl thiouredio)-3-(4-hydroxyphenyl) propanoic acid
, 5, and (E)-2-(3-cinnamoyl thiouredio)pentanedioic acid, 6, was successfully synthesized and fully characterized by spectroscopic methods.
High purity acrylic acid, propanoic acid
, acetaldehyde, and other chemicals were used as calibration standards.
They found that the monochloropropanoic acid created in the reaction was much stronger than the propanoic acid
, which led to an increasing rate of acid catalysis and autocatalysis.
The adsorption capacity was increased from 1.69% up to 65.28% by increasing dosing rate of propanoic acid
from 0.059 g up to 1.472 g.
2-hydroxy-1-ethyl acetate (22.15%), mono (2-ethylhexyl) ester (2.33%), hexanedioic acid (2.11%), phthalic acid (1.78%), cyclopentane (1.77%), benzamide (1.76%), propanoic acid
(1.16%), hydrazine carboxamide (0.93%), pentadecanoic acid (0.91%), hexadecyl acetate (0.81%) and oxalic acid (0.80%) (Fig.
Major contained compounds were 2-Furancarboxaldehyde 22.05% > Propanoic acid
propyl ester 12.91% >, 4H-Pyran-4-one, 2, 3-dihydro-3, 5-dihydroxy-6methyl 8.02% >, 1-Propanol 2, 2-dimethyl 7.03%, altogether 50.01%.
GC-MS based on metabolomics showed amino acids (alanine, valine, aspartic acid, phenylalanine, etc.), fatty acids (octadecadienoic acid, arachidonic acid, etc.), and propanoic acid
, and glucose and cholesterol were identified as biomarkers in diet-induced hyperlipidaemia rats .
Effect of sites on the percent composition of alpha-pinene, Sabinen, beta-pinene, beta-Myrsen, limonene, Terpynol, Syklopanten, Z-Sytral, cyclohexene, benzene, propanoic acid
, Syclopripyzolen, Aspatolnol and tri-cyclohexene at 1% level is significant.
In continuation of our work to develop greener and expeditious protocols for the synthesis of heterocyclic compounds [44-48], herein we wish to report a highly efficient procedure for the synthesis of new substituted-2H-1,2,4-triazole phenol derivatives (4) and spiro (indole-triazole) propanoic acid
derivatives (5) using water (containing 1-2 mL of alcohol) by the reaction of 4-chloro-2-nitro aniline (1)/amino acids (l') and aromatic aldehydes (2)/1H indole-2,3-diones (2'), respectively, with thiosemicarbazide (3) yielding triazole (4)/spiro indole-triazole (5) derivatives in high yields and shorter reaction displaying excellent florescent property (Scheme 1).
2,2-Di(hydroxymethyl) propanoic acid
(dimethylolpropionic acid; DMPA) was Aldrich reagent grade and 2,2-di(hydroxymelhyl)butanoic acid (dimethylol butyric acid; DMBA) was obtained from Nippon Kasei.
2-(5-methyl-1,3,4-thiadiazol-2-ylthio) propanoic acid
(3b): Yield: 70.9 %; mp: 124-125AdegC.
2-[3-Amino-5-methyl-5-(pyridin-3-yl)-1,5-dihydro-4H-1,2,4-triazol-4-yl]-3-phenyl Propanoic Acid
. IR (KBr, [cm.sup.-1]) 3402, 3202, 2545, 1611, 1455, 1315, 1098, 856, 739.
Interaction of 3-carboxyl-4-methyl-5-propyl-2-furan propanoic acid
, an inhibitor of plasma protein binding in uremia, with human albumin.
 reported on the esterification of low molecular fatty acid (acetic acid and propanoic acid
) and high molecular fatty acid in sewage sludge bio-oil.