2-Alkyl-7-methoxy-5-nitrobenzo[b]furan, 2-alkyl-9-methoxy-7-nitro-3-oxo-2,3-dihydro-5H-benzo[e][1,4]-dioxepin-5-yl acetate and 2-alkyl-5-hydroxy-9-methoxy-7-nitro-5H-benzo[e][1,4]-dioxepin-3-one were formed as a result of the cyclization of 2-(2-formyl-6-methoxy-4-nitrophenoxy)alkanoic acids und...

SummaryIn glass containers a 0.004% level of ethyl hydrocaffeate was effective in delaying oxidized flavor development in stored frozen cream for a period of 12 months. In the presence of 0.5 p.p.m. of copper in glass containers, 0.04% and 0.02% concentrations of the antioxidant were effective t...

Im Photoelektronenemissionsmikroskop (PEM) werden feincytologische Untersuchungen an semidünnen Schnitten möglich. Als Einbettungsmittel wurden Durcupan, Vestopal, Araldit und Epon vergleichend untersucht. In allen vier Kunststoffen kann eine Emission erreicht werden, die hinreichend für eine ...

The influence of glutaraldehyde fixation, osmication, acetone dehydration, and Vestopal-W embedding on shape and dimensions of cat myelinated lumbar spinal root nerve fibers was investigated using light and electron microscopy. Glutaraldehyde fixation gave no clear changes in nerve fiber shape o...

The degree of sectioning compression and the thickness of ultrathin sections were studied in Vestopal-W-embedded feline spinal roots using a conventional sectioning technique. Sections about 100 nm thick were found to have been compressed by ∼5% in the direction of sectioning. No corresponding ...

In this study, the kinetic characteristics of the bio-hydration of acrylonitrile by free cell catalysts were studied. Due to the aggregation phenomenon, free cell catalysts showed different characteristic when compared with free enzyme catalysts. The Michaelis constants were obtained through the...

A highly energy-efficient peroxi-coagulation (PC) process was developed based on modified graphite felt, and the acrylonitrile removal efficiency was also comparatively studied by electro-Fenton (EF) and electrocoagulation (EC). The results showed that acrylonitrile was slowly and ineffectively ...

Hydrogenation of acrylonitrile to propionitrile catalyzed by Raney Ni was accessible with good yield and high selectivity under optimized reaction conditions. Kinetic modeling was performed by means of computer aided autoclave reaction; the apparent activation energy of this reaction was determi...

ABS (Acrylonitrile-Butadiene-Styrene) is an opaque thermoplastic polymer material made from the monomers Acrylonitrile, 1, 3-Butadiene and Styrene. It is a polymer made by polymerizing styrene (40% - 60%) and acrylonitrile (15% - 35%) in the presence of polybutadiene (5% - 30%). ABS is strong an...

In the review of the successful solar thermal electrochemical process (STEP) of acrylonitrile oxidation for the effective wastewater treatment, the process was actually driven by solar two fields - thermofield and electrofield, essentially activated and motivated for both thermochemistry and ele...

Despite that there have been many reports on the achievement of high-performance rubber/clay nanocomposites, the preparation strategies of these nanocomposites are still quite limited. In this study, a novel method named gel compounding method was utilized to prepare acrylonitrile-butadiene rubb...

In hospitals, operating rooms (ORs) are very demanding in terms of the indoor air quality (IAQ) and require systems that minimize the concentrations of pollutants (microorganisms, chemical and particulate matter). Air treatment devices that use photocatalytic oxidation (PCO) could potentially be...

CoAl2O4/kaolin hybrid pigments with high blue value were prepared via microwave hydrothermal assisted technique. The obtained hybrid pigments incorporated 60 wt% kaolin presented excellent color properties (L⁎ = 34.44, a⁎ = 16.73, b⁎ = −70.49) after being calcined at 900 °C, which was matched w...

Photocatalytic oxidation (PCO) is an advanced air cleaning technology that is used as a means to improve air quality in indoor environments and could also potentially be used in hospital operating rooms (ORs). However, when it comes to the feasibility of using PCO to remove VOCs, most studies ha...

In this work, to improve the spinnability of sodium alginate, potassium persulfate (KPS) was used as initiator, SA was modified with acrylonitrile (AN) to prepare sodium alginate-polyacrylonitrile copolymer (SA-g-AN), and SA-g-AN/PEG composite solutions were prepared by blending SA-g-AN and poly...

A novel synthesis of 16α-hydroxy-4-androstene-3,17-dione (3), 16α-hydroxy-4-androstene-3, 6,17-trione (4), 17β-amino-5-androsten-3β-ol (10) and 17β-amino-4-androsten-3-one (14) is described. 16α-Bromoacetoxy-4-androstene-3, 17-dione (5), 16α-bromoacetoxy-4-androstene-3, 6,17-trione (6) an...

Two series of novel EPAC antagonists are designed, synthesized and evaluated in an effort to develop diversified analogues based on the scaffold of the previously identified high-throughput (HTS) hit 1 (ESI-09). Further SAR studies reveal that the isoxazole ring A of 1 can tolerate chemical modi...

Some optically active 3-(arylmethylidene)aminoxy- (3a–g, 4a–g) and fluorenylideneaminoxy-2-methylpropionic acids (5, 6), were prepared as analogues of the antiinflammatory arylpropionic acids of type B, in which the aromatic group is substituted by an MAOM moiety. Some of the new compounds, te...

Fluorine smoothly attacks quinuclidine-trifluoroborane, quinuclidine-pentafluorophosphorane, and quinuclidine-sulfur trioxide in acetonitrile at −35 °C to give the corresponding N-fluoroquinuclidinium salts NFQ+X− (X−  BF4−, PF6−, and FSO3− respectively; Q = quinuclidine). Like its tetrafluor...

The substrate properties of three β-fluoro-4-phenyl-1,2,3,6-tetrahydropyridines related to the proneurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine have been examined in an effort to evaluate the contribution of electronic parameters to the MAO-B catalyzed allylic-α-carbon oxidation of t...