A flow-mixing isothermal microcalorimeter has been used to determine the excess molar enthalpies for five binary systems of diethyl malonate+ (1-butanol, 2-methyl-1-propanol, 1-pentanol, n-heptane, and ethyl acetate) at T= (288.2, 298.2, 313.2, 328.2, 338.2, and 348.2 K) and p = 101.3 kPa. The H...

Liquid–liquid equilibrium (LLE) data have been measured for one ternary system of water + N-methyl-2-pyrrolidone + 1-pentanol, and three quaternary systems of water + N-methyl-2-pyrrolidone + 1-pentanol + sodium chloride, +potassium chloride, or +potassium acetate at temperatures 283.15 and 323...

Total pressure measurements at 313.15 K are reported for binary systems of benzene and 1-propanol, 2-propanol, 1-pentanol, 3-pentanol, and 2-methyl-2-butanol. The results are interpreted by an extended form of the Kretschmer–Wiebe association model, in which it is assumed that linear alcohol ch...

Henry’s law constants and infinite dilution activity coefficients of cis-2-butene, dimethylether, chloroethane, and 1,1-difluoroethane in methanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, isobutanol, tert-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 3-methyl-1-butanol,...

2-Ethyl-1-hexanol (2-EH) is a commercially important chemical that requires cost effective catalytic processes for synthesis. The cascade engineered synthesis of 2-EH was done in a single pot from n-butanal using solventless conditions with trifunctional mixed metal oxide containing 5% Cu and Mg...

Liquid–liquid equilibrium (LLE) tie-line data of ternary aqueous mixtures containing 1-pentanol and 2-methyl-1-propanol were reported separately at T = (298.15, 323.15 and 348.15) K under normal pressure in this article. Meanwhile, a type II LLE phase diagram for the investigated system at each...

The tide compound was synthesised in the optically active form in seven steps from (4R,6R)-actinol in 34% overall yield. The relative configuration within the C15-key intermediate acetylenic triol, 2-E-5-((1S,4R;,6R)-1,4-dihydroxy-2,2,6-trimethylcyclohexyl)-3-methyl-2- penten-4-yn-1-ol, was dete...

Serum group I pepsinogen (PG I) levels have been determined before and at intervals after the administration of betazole hydrochloride (Histalog) in 50 symptomatic postoperative patients, 20 with and 30 without recurrent ulcer, after either a vagotomy and gastric resection or a drainage procedur...

1.The urinary bladder of the tortoise,Damonia subtrijuga, acidified its mucosal surface and increased the pH at its serosal surfacein vitro.2.Acetazolamide reduced this acid-base transport, apparently by reducing the H+ or HCO3- available for transport.3.Betazole increased acid-base transport, a...

A case of a pyloric channel ulcer in a patient with betazole-fast achlorhydria is presented and the implications are discussed.

Betazole, a pyrazole analogue of histamine, as well as pentagastrin and HCl stimulate GIP secretion. We have asked the question as to whether betazole acts directly or via the production of HCl. Eight normal subjects and 4 patients with achlorhydria secondary to pernicious anemia were given beta...

Betazole, (β-(3-pyrazolyl)-ethylammonium), a very weak H2-receptor agonist of histamine is compared, in the semiempirical quantum chemical CNDO/2 approximation, to histamine.The molecular determinants responsible for the H2-activity, such as the conformation of the ethylammonium side chain, a n...

The photosensitized electrochemical oxidation at a TiO2/Ti anode is, in itself, a “green” chemical strategy as the semiconductor remains unchanged during the experiments, the metal is safe, low energies are involved and experimental conditions are mild. In this context, the oxidation of 4-meth...

The triarylimidazoles (TAIs) constitute a promising class of organic electron transfer redox mediators that have been used to achieve indirect electrochemical C-H bonds activation and functionalization. Herein we report the diffusion and electron transfer rates for the oxidation of 4-methoxybenz...

Triarylimidazoles have emerged as novel and useful organic redox catalysts as a result of their straightforward synthesis and tunable oxidation potential. Herein we describe an investigation of the effects of supporting electrolyte and solvent on the chemical reversibility of the triarylimidazol...

The photoelectrocatalytic partial oxidation of 4-methoxybenzyl alcohol in aqueous solution irradiated by near-UV light was carried out in a three-electrode batch reactor. TiO2 films were either deposited by dip-coating of a TiO2 sol onto a Ti foil and subsequent calcination or generated on Ti pl...

High resolution NMR spectra of both cis and trans, p-benzoquinone dioxime and 1,4-cyclohexanedione dioxime are obtained and analyzed by taking account of the long range anisotropy effect of the hydroxyimino group. It is found that the amount of the trans isomer is greater than that of the cis is...

The synthesis of novel 2H-benzimidazole 1,3-dioxides on the basis of o-benzoquinone dioximes interaction with ketones in the presence of acids is described. Nitration of these compounds by nitric acid in acetic acid yields the 5-nitro derivatives of 2H-benzimidazole 1,3-dioxide.

Au and Ag clusters of 3-nm mean diameter were prepared with 1,4-benzenedimethanethiol (BDMT) as the capping molecule. In both the monolayer-capped clusters, BDMT adsorbs in the dithiolate form in contrast to in the 2D monolayers, where the dithiolate form exists only in the case of Ag. As a resu...

Using atomic force microscopy we investigated how local capillary phenomena are affected by the deposition of a self-assembled 1,4-benzenedimethanethiol (BDMT) layer on epitaxially grown Au(1 1 1) and Ag(1 1 1) films. Force–distance curves monitored at varying relative humidity show clear diffe...