Morpholine amide intermediates, which are easily prepared by aminolysis of various esters with diisobutyl(morpholino)aluminum, react with organolithium and reducing agents (DIBALH or LDBMA) without isolation of the aminolysis intermediates to give ketones in 83–95% yields and aldehydes quantita...

(Liquid + liquid) equilibrium (LLE) data for (water + propionic acid + solvent) were measured at T = 298.2 K and atmospheric pressure. The solvents were methyl isoamyl ketone (5-methyl-2-hexanone), ethyl isoamyl ketone (5-methyl-3-heptanone) and diisobutyl ketone. The tie-line data were correlat...

Diisobutyl ketone (DIBK) and diisobutyl carbinol (DIBC) are important organic solvents widely used as industrial intermediates. It was hypothesized that DIBC and DIBK have common metabolic pathways and metabolites, and as such, toxicological data on DIBK could be used to characterize the hazards...

t-Butoxy derivatives of DIBALH [lithium diisobutyl-t-butoxyaluminum hydride (LDBBA), sodium diisobutyl-t-butoxyaluminum hydride (SDBBA), and potassium diisobutyl-t-butoxyaluminum hydride (PDBBA)] were examined as chemoselective reducing agents of carbonyl compounds. Among them, PDBBA was found t...

Melamine is commonly used in the chemical industry, and it has been found to exist on food processing equipment and utensils. Previous investigations suggested that melamine alone or its combination with cyanuric acid appears to be toxic to immune system in animals. The objective of this study i...

Melamine is used extensively in household products, such as furniture, dinnerware, and food utensils. Several studies have shown that melamine adversely affects kidney function. Nevertheless, little is known about urinary melamine concentrations, and its temporal variability. In this study, 213 ...

BackgroundMelamine and cyanuric acid, which are currently used in a variety of common consumer products and present in foods, have been implicated in the development of urolithiasis and acute kidney injury in Chinese children. To determine whether US children have measurable concentrations of th...

We determined the concentrations of melamine, ammeline, ammelide, and cyanuric acid in meat, fish and seafood, cereal products, beverages, cooking oil, and vegetables (n = 121) collected from Albany, New York, United States. In addition, food packaging (n = 24) and animal feed (n = 12) were anal...

Occurrence, spatial distribution, and temporal trends of melamine and its derivatives (ammeline, ammelide, and cyanuric acid) were investigated in surface sediment and two sediment cores collected from Lake Shihwa, South Korea. ∑Melamine (sum of melamine and its three derivatives) was found in ...

This study investigated impacts of the synthesis method and melamine content of urea-melamine-formaldehyde (UMF) resins to their cohesive and interphase features, and adhesion in bonding wood products. Melamine at three addition levels was simultaneously reacted with urea and formaldehyde to obt...

Crosslinkable latexes aim to improve the physical properties of coalesced latex films, over levels attainable with thermoplastic latexes, which lack thermal, mechanical and solvent resistance. This work investigated the synthesis by miniemulsion polymerization of waterborne acrylic-melamine nano...

European legislation has established a specific migration limit (SML) of 15 mg kg−1 for formaldehyde and 2.5 mg kg−1 for melamine. Formaldehyde resins are used in the manufacture of melamine kitchenware. Formaldehyde is listed in group 1 of the IARC list of carcinogenic compounds. To determine t...

We report a synthetic strategy to combine different moieties in a single structure using cyanuric chloride (2,4,6-trichlorotriazine) as a starting platform for preparing potential bioimaging agents. This reacted with macrocycles of the porphyrin family and DOTA type metal chelators through mono-...

Two monomeric complexes of copper(II) azide with 2,4,6-trimethylpyridine and 3-ethyl-4-methylpyridine, namely trans-diazidobis(s-collidine)copper(II) (1) and azidotetrakis-(β-collidine)copper(II) nitrate (2), have been prepared and characterized by spectroscopic and X-ray crystallographic metho...

This study is concerned with the reactions between copper(II) chloride and bromide with 2- and 4-methylpyridine and 2,4,6-collidine. The effects of the methyl groups(s)’ position in a series of methylpyridines on the host–guest phenomenon in the formed copper(II) halide compounds were studied ...

A series of desilicated ZSM-5 catalysts previously shown to have improved catalytic performance in the MTG (methanol-to-gasoline) reaction [M. Bjørgen, F. Joensen, M.S. Holm, U. Olsbye, K.-P. Lillerud, S. Svelle, Appl. Catal. A 345 (2008) 43] was subjected to thorough examination using FTIR. Cle...

The Suzuki–Miyaura cross-coupling reaction of 3,5-dibromo-2,4,6-collidine and bromo derivatives of 2,6- and 2,4-lutidine with several ortho-substituted boronic acids produced a library of arylated pyridines. The reaction conditions were carefully optimized to allow high yield of the desired pro...

Background: While phloroglucinol is widely prescribed in European countries for its antispasmodic properties, recent high quality data failed to demonstrate its superiority to placebo in alleviating abdominal pain. Rumors suggest that injectable presentation of phloroglucinol may erase povidone-...

ObjectiveDiabetes is a common metabolic disease with several complications in its patients. Often, people living with diabetes develop erectile dysfunction (ED). The primary aim of this work was to investigate the effect of phloroglucinol in diabetes-induced ED in rats.

Twelve formyl phloroglucinol meroterpenoids (FPMs) were isolated from the leaves of Eucalyptus robusta Smith. Their structures were elucidated via spectroscopic data analysis, the circular dichroism (CD) exciton chirality method, Rh2(OCOCF3)4-induced CD experiments, and application of the Snatzk...