the density and viscosity values at t= (293.15 to 323.15) k for binary mixtures of nitromethane with 2-propanol, 2-butanol and 2-pentanol were measured over the entire composition range. from the experimental data, excess molar volumes, thermal expansion coefficients, excess thermal expansions, partial molar volumes at infinite dilution and deviations in viscosity were calculated. the results w...

Methoxychlor, a currently used pesticide that in mammals elicits proestrogenic/estrogenic activity and reproductive toxicity, has been classified as a prototype endocrine disruptor. Methoxychlor is prochiral, and its metabolites 1,1,1-trichloro-2-(4-hydroxyphenyl)-2-(4-methoxyphenyl)ethane (mono-OH-M); 1,1,1-trichloro- 2-(4-methoxyphenyl)-2-(3, 4-dihydroxyphenyl)ethane (catechol-M); and 1,1,1-t...

we give the concept of ‘braiding’ for 2-groupoids, and we show that this structure is equivalent tobraided regular, crossed modules.

1

Six new complexes of the type trans-[LCo((DO)(DOH)pn)L'] where (DO)(DOH)pn= N2, N2'-propanediolbis (2,3-butanedione 2-imine 3-oxime), L-Cl¯ and L'=mono-anaion of phenylcyanamide (pcyd), 2,5-dichlorophenylcyanamide (2,5-Cl2 pcyd), 2,4-dimethyl pehylcyanamide (2,4-Me2 pcyd) and L=L'=pcyd, 2,5-Cl2 pcyd, 2,4-Me2 pcyd, have been s...

BackgroundDi(2-ethylhexyl) phthalate (DEHP) a parent compound that is metabolized into 4 metabolites, which correlate to adverse cardio-metabolic risk factors. This study aimed explore the links between urinary DEHP metabolites and serum lipids in U.S. general adult population.MethodsIn this cross-sectional study, data on 11 from 2005–2018 National Health Nutrition Examination Surveys (NHANES) ...

Several 6-C-substituted 2-acetamido-2-deoxy-beta-D-glucopyranosides (beta-D-GlcNAc monosaccharides 1a-3a and 1,4-linked disaccharides 1b-3b) were studied by solution NMR spectroscopy. Conformational analysis of the (6S)- and (6R)-C-methyl-substituted beta-d-GlcNAc monosaccharides indicates that the stereodefined methyl groups impose predictable conformational biases on the exocyclic C-5-C-6 bon...

A chiral Lewis acid catalysed asymmetric [2+2] cycloaddition reaction of allenyl imide and alkenes was developed by Xiaohua Liu, Xiaoming Feng et al. in their Research Article (e202211596). This protocol provided a series axially cyclobutenes high yields with excellent enantioselectivities. stepwise mechanism proposed based on experimental studies DFT calculations, π–π stacking interactions wer...