Reaction of thionyl chloride with 7-chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-4- oxoquinoline-3-carboxylic acid 1 gave acid chloride 2. Compound 2 was reacted with glycine and D-glutamic acid to afford 2-(7-chloro-1-cyclopropyl-6-fluoro-4-oxo-1,4- dihydroquinoline-3-carbonyl) aminopantandioicacid 3a and 2-(7-chloro-1-cyclopropyl-6- fluoro -4- oxo-1,4-dihydroquinoline-3-carbonyl)aminoacetica...

the aim of the present study was to synthesis a series of phthalimides based on our previous works and examine their anxiolytic properties. using a three steps process, phthalimides were prepared from the corresponding di-methyl phthalate derivatives. phthalic anhydride was nitrated to produce 3-nitrophthalic acid. ring closer of either 3-nitrophthalic acid or di-methyl phthalate with urea were...

The objective of this research was to evaluate the effects of immersion marination with citric acid, calcium chloride and combined mixture of citric acid and calcium chloride solutions on Semimembranosus meat quality traits. Meat cuts obtained from culled cows were marinated with 0.05 M citric acid, 0.2 M calcium chloride or the combined mixture of these two compounds for 24 hr. Nonmarinated me...

The total active transport of chloride ions across the gastric mucosa can be considered as the sum of two fractions; an acidic one which is equivalent to the acid secreted, and an electromotive one which accounts for the electric energy generated by the gastric mucosa. In the present studies, the relationship between this electromotive chloride transport and acid secretion has been investigated...

The chemical potentials of each solute in an aqueous mixture of two electrolytes have been determined for many systems. For example, the activity coefficients of both hydrochloric acid and sodium chloride in mixed aqueous solution have been derived from emf measurements [I]. The isopiestic vapor pressure method has been used [2] to determine the activity coefficients of each solute in aqueous m...

Alkali-activated concrete is a promising alternative to conventional Portland cement-based concrete. However, further understanding in relation the durability of alkali-activated required. This paper explores resistance mixes aggressive media that expected encounter in-service. Findings indicate chloride, freeze–thaw and acid increases as slag content activator increased. performance against ch...

background: olive oil wastewater  contains chemical contents and organic materials that are resistant to biodegradation.  the existence of phenolic inhibitor compounds, toxicity to microorganisms in wastewater treatment units, unpleasant odor, high biochemical oxygen demand (bod) and chemical oxygen demand (cod), high suspended solids, and compounds resistant to biodegradation in such wastewate...

studies with dibutyl~hloro[~H]methyltin chloride have shown that it co-migrates with subunit 9, both in its monomeric form (mol.wt. 7000-8000) and its aggregated (hexameric) form (mol.wt. 45000). Studies with yeast mitochondria and the purified ATP synthase indicate that the ATP synthase contains approx. six binding sites for triethyltin and an equivalent number for dibutylchloromethyltin chlor...

From the Research Division, J. T. Baker Chemical Co., Phillipsburg, N. J. 08865. 1 Paper IV in the series “The Practical Analysis of High-Purity Chemicals.” Presented at the 22nd National Meeting of the AACC, Buffalo, N.Y., July 1970. Received April22, 1971; accepted June 3, 1971. Calcium carbonate Lithium carbonate Magnesium acetate Potassium chloride Potassium monobasic phosphate Sodium chlor...