The development of a stereoselective aza-Piancatelli reaction to access 4-aminocyclopentenones is reported. This transformation relies on the use chiral o-sulfinyl anilines as inductors afford targeted products in good excellent yields. Remarkably, high value-added cyclopentenones could be obtained drs up >95:5, depending upon furan substitution pattern.

Abstract Triclabendazole is one of the main drugs used to treat liver fluke in livestock. A rapid LC-MS/MS method was developed and validated determine ovine plasma levels triclabendazole sulfoxide. Gemini NX-C18 column achieve analytical separation, with gradient elution a mobile phase composed 0.1% formic acid acetonitril water at flow rate 0.6 mL/min. MRM positive ESI ionization for detectio...

This work succeeded in synthesizing sponges from chitosan-graft-maleic anhydride. Chitosan and maleic anhydride at a certain mass ratio (1:2, 1:1; 2:1) were reacted dimethyl sulfoxide (DMSO) 60

Development of protocols for cryopreservation microalgae Chlorococcum dissectum Korshikov and Dunaliella salina Teodoresco requires selection effective cryoprotectants their concentrations. One the stages choosing optimal concentrations is determining degree toxicity cells at equilibration stage. Solutions dimethyl sulfoxide, ethylene glycol, ethanol, glycerol (5–30%) modified PVS1 PVS2 (50 75%...

Cucurbit[7]uril (CB[7]) encapsulates adamantyl and trimethylsilyl substituents of positively charged guests in dimethyl sulfoxide (DMSO). Unlike water or deuterium oxide, addition a selection alkali alkali-earth cations...