A macrocyclic lactone (BSD) consisting of butylene succinate dimer was successfully isolated from oligomeric byproducts of poly(butylene succinate) (PBS) prepared by the polycondensation method. BSD was subjected to ring-opening polymerization (ROP) with tin octoate as the catalyst to obtain PBS...

The regiochemistry of the reduction of mono-ethyl fumarate using bis(carboxylato){2,2′-bis(diphenylphosphino)-[R]-1,1-binapthyl}-ruthenium(II) (Ru[BINAP]) in H2/CH3OD is reported and occurs opposite to the regiochemistry observed in the reduction of tiglic acid. Reduction of mono-ethyl maleate ...

Liquid–liquid phase equilibria of binary solutions of the room temperature ionic liquid (RTIL) 1-methyl-3-octylimidazolium tetrafluoroborate ([C8mim][BF4]) with 1-heptanol or 2-pentanol were measured. The critical exponents β obtained from the liquid–liquid equilibrium data in the critical re...

tert-Butyl azidoformate (2) reacts with the conjugate bases of 3a, 7a, 9 (R1 = R2 = CH3), and 9 (R1 = CH3, R2 = H) to give products [4, 8, 12, and 14, respectively] in addition to the expected N-(tert-butoxycarbonyl)indole derivatives.

Ferrocenecarboxaldimine (1) reacted with 1,4-pentadien-3-ol (2) under Wilkinson's catalyst (3) to give the hydroacylated product 6 after hydrolysis of the resulting ketimine 4. Prolonged reaction time induced the isomerization of 6 to 7. When 1,5-hexadien-3-ol (11) was used, the hydroiminoa...

The C2-alkylated acrolein derivatives 2-methylacrolein, 2-ethylacrolein and 2-propylacrolein are mutagenic in Salmonella typhimurium TA100. They are direct mutagens, their mutagenic potency being inversely proportional to the size of the alkylating substituent in the C2 position. In the presence...

Ethambutol (as its dihydrochloride) is a bacteriostatic drug, which is widely used as part of the Tuberculosis treatment protocol. It can also act as a ligand for various metal ions, such as copper(II), leading to complexes with potentially interesting applications in medicinal and analytical ch...

Mutual diffusion coefficients, densities and viscosities are reported for aqueous solutions of ethambutol as its dihydrochloride (EMBDHC) at finite concentrations and at 298.15 K. From these experimental results and by using the appropriate models (Stokes–Einstein and Hartley), the hydrodynamic...

Ternary mutual diffusion coefficients measured by the Taylor dispersion method are reported for aqueous solutions of {ethambutol dihydrochloride (1) + HCl (2)} at 25 °C and various carrier solution compositions. Mutual diffusion coefficients estimated from limiting ionic conductivities using Ne...

Photocatalytic activity of mixed-phase titanium oxide synthesized by sol-gel reaction in supercritical CO2 was investigated with dye degradation of methylene blue. Titanium oxides were synthesized using titanium isopropoxide (TIP), titanium butoxide (TBO), titanium ethylhexoxide (TEO) and titani...

Effects of the precursor structure on crystallinity and morphology of titanium oxide from sol-gel reaction and drying in supercritical carbon dioxide was investigated. The titanium precursors examined in this work are: titanium isopropoxide (TIP), titanium tetrabutoxide (TBO), titanium ethylhexo...

The enantioselective synthesis of (R)-(−)-actisonitrile 1 has been achieved via O-alkylation of (4R,αS)-4-hydroxymethyl-3-(α-methylbenzyl)oxazolidin-2-one (αS)-4 with 1-iodohexadecane in the presence of CsOH in DMF. Under these reaction conditions, the O-alkylation was much faster than the in...

Application of tetrabutylammonium bis(2-ethylhexyl)-phosphate ([N4444][DEHP]), a room temperature ionic liquid (IL), as an aqueous collector for flotation of model monazite and bastnäsite minerals was investigated through micro-flotation tests, zeta potential measurements, Fourier Transform Infr...

In a comparative study the ester hydrolysis of the plasticizers di-(2-ethylhexyl) phthalate (DEHP) and tri-(2-ethylhexyl) trimellitate (TEHTM) as well as of the diester isomers 1,2-di-(2-ethylhexyl) trimellitate (1,2-DEHTM), 1,4-di-(2-ethylhexyl) trimellitate (1,4-DEHTM) and 2,4-di-(2-ethylhexyl...

A novel extractant, 2-ethylhexyl Bis(2-ethylhexyl)phosphinate (EHBEHP, abbreviated as B), was synthesized for the extraction of Cerium(IV) (Ce(IV)) and fluorine (F(I)) from nitric acid (HNO3) media. The effects of HNO3 concentration, extractant concentration, F(I) concentration and the temperatu...

BackgroundPlasminogen activator inhibitor type 1 promotes formation of endothelial microparticles with procoagulant activity. However, it remains unclear whether di-(2-ethylhexyl) phthalate, a peroxisome proliferator-activated receptor α agonist, influences microparticle formation.

Bis(2-ethylhexyl)phosphoric acid (DEHPA) reacts with tributyl phosphate (TBP) to form the corresponding butyl ester species butyl-bis(2-ethylhexyl)phosphate (DEHPA-OBu) and dibutyl phosphate (DBP) under aqueous-free and hydrous operating conditions. Generation of DEHPA-OBu and DBP was found to o...

A novel and efficient device of solvent stir-bar microextraction (SSBME) system coupled with GC-FID detection was introduced for the pre-concentration and determination of malondialdehyde (MDA) in different biological matrices. In the proposed device, a piece of porous hollow fiber was located o...

In this study, separation of copper ion (Cu2+) from aqueous solution using two phosphorous based extractants (tri‑n‑butyl phosphate and di‑2‑ethylhexyl phosphoric acid) was aimed. The parameters monitored under the equilibrium study were initial copper concentration, extractant concentration, an...

Purification of low grade uranium concentrate was carried out using 0.05 mol L−1 Tris 2-ethylhexyl Phosphate in kerosene from 5 mol L−1 nitrate solution. More than 98% of uranium extracted after 5 stages of contact, shaking time 5 min, volume phase ratio 1/1 and at room temperature. Uranium stri...