Specific rates of solvolysis in hydroxylic solvents available for the solvolysis of 2-thiophenesulfonyl chloride and phenylmethanesulfonyl chloride are supplemented by determining the values in fluoroalcohol-containing solvents. The data sets are then correlated using the extended Grunwald-Winstein equation. For both substrates, it is found that a single correlation controls the influence of so...

Z. Naturforsch. 56 b, 57-61 (2001); received September 11, 2000 Organic-Inorganic Hybrids, Low-Dimensional Semiconductors, Fluorescence Using 1-chlorodecane (C10H21CI), benzyl chloride (C6H5CH2CI), a,a'-dichloro-p-xylene (CICH2C6H4CH2CI), 4-phenylbenzyl chloride (C6H5C6H4CH2CI), 2-bromomethyl-naphthalene (CioHyC^Br), 4-bromomethyl-7-methoxycoumarin (CioHzO^C^Br), 2-bromomethylanthraquinone (CuH...

It has been shown that ruthenium polypyridyl aqua complexes have basically the same electrochemical behavior in weakly coordinating organic solvents, such as methylene chloride and acetone, water. Therefore, their use electrocatalytic processes water, they conducted an ecologically cleaner system, can bring significant benefits for mankind, well nature economy. In this sense, new complex contai...

Chloralhydrate of the acids, which is separated from sea oils, have been synthesized and its physical-chemical properties researched accordingly. After this, it was possible to receive a series aromatic ethers in result interaction chloralhydrate with phenol, benzyl alcohol, α-naphthol additionally an optimal condition for current process has determined as well. It also that reaction acylation ...

A new and non-infringing efficient one-pot process for the preparation of catechol-O- methyltransferase (COMT) enzyme inhibitors, entacapone 1 under mild condition, initially reaction 3-methoxy-4-hydroxy-5-nitro-benzaldehyde 5 with 2-cyano acetic acid 13 in presence organic base benzyl Trimethyl ammonium hydroxide, i.e. Triton-B which undergo Knoevenagel condensation to get intermediate 22 is t...

Self-Assessment 1 7. Pigmented cosmetic dermatitis is associated historically with Japanese women using which chemical? A. Jasmine absolute B. Sandalwood oil C. Ylang-ylang oil D. All of the above E. None of the above 8. Which chemical is considered an endocannabinoid? A. Anandamide B. Dronabinol C. HU-210 D. Nabilone E. Tetrahydrocannabinol 9. Which cannabinoid has an “entourage” effect, augme...

Antimicrobial liquids and foams were applied to the hands to determine their virucidal activity against rhinoviruses. Dilute solutions (1%) of iodine in ethyl alcohol or in water were most effective in causing inactivation of rhinovirus when applied immediately after viral contamination. Iodine also had a residual virucidal activity which persisted on the hands for up to 1 h. Less effective ina...

A highly regio- and stereoselective anomeric esterification of 3-O-allyl (or benzyl, or benzoyl)-4,6-O-isopropylidene-alpha,beta-d-glucopyranose with acetyl chloride, or allyl chloroformate, or ethyl chloroformate gave the corresponding 2-OH, 1-beta-acetates or -carbonates in excellent yields. The 2-OH, 1-beta-acetates were readily converted to the corresponding 2-O-acetylated glucopyranosyl tr...

In the mononuclear title compound, trans-[PtCl2(C19H17P)2], the slightly distorted square-planar coordination sphere of the Pt(II) atom is occupied by two benzyl-diphenyl-phosphane ligands and two chloride atoms in a mutually trans geometry. The effective cone angles for the two phosphane ligands are 160 and 169°. C-H⋯Cl inter-actions generate infinite long chains along [01-1]. Additional C-H⋯π...

The application of a variety of iron complexes with chelating amine ligands as pre-catalysts in the representative cross-coupling of 4-tolylmagnesium bromide with cyclohexyl bromide was investigated. The results from this study indicate the performance of the pre-catalyst is inversely proportional to the strength of the chelate or macrocyclic effect of the amine ligand, as determined by the pro...