55915-70-3Relevant articles and documents
Trace Detection of Hydrogen Peroxide via Dynamic Double Emulsions
Fong, Darryl,Swager, Timothy M.
supporting information, (2021/04/07)
Hydrogen peroxide is a dynamic signaling molecule in biological systems. We report herein a versatile double emulsion sensor that can detect femtomolar quantities of aqueous hydrogen peroxide. The mechanism responsible for this sensitivity is a peroxide induced change in double emulsion structure, which results in a modified directional emission from dyes dissolved in the high index organic phase. The morphology (structure) of the double emulsion is controlled via interfacial tensions and a methyltrioxorhenium catalyzed sulfide oxidation results in an enhancement of the surfactant effectiveness. The incipient polar sulfoxide induced decrease of the interfacial tension at the organic-water (O-W) interface results in an increased interfacial area between the organic phase and water and a diminished emission perpendicular to the supporting substrate. The modularity of our sensory system is demonstrated through cascade catalysis between methyltrioxorhenium and oxidase enzymes, with the latter producing hydrogen peroxide as a byproduct to enable for the selective and sensitive detection of molecular and ionic enzymatic substrates.
A new practical synthesis of (+)-grandisol from (+)-citronellol using an intramolecular carbenoid cyclization
Monteiro, Hugo J.,Zukerman-Schpector, Julio
, p. 3879 - 3888 (2007/10/03)
A new practical 10 step synthesis of (1S,2R)-2-acetyl-1-methylcyclobutaneacetic acid 15 is reported, which has as a key step a rhodium catalyzed intramolecular carbenoid cyclization of the α-diazo-β-ketosulfone 5, readily available from (+)-citronellol 2. Since 15 has already been converted into (+)-grandisol 1, the major pheromone of the cotton boll-weevil Anthonomus grandis, the described preparation constitutes a new formal synthesis of the optically active pheromone.
Products Active on Mosquitoes: Part III - Synthesis of Biologically Active 3,7-Dimethyl-6-octene-1,8-diol Diethers
Phadnis, A. P.,Nanda, B.,Patwardhan, Sarita A.,Powar, P.,Sharma, R. N.
, p. 867 - 870 (2007/10/02)
Mixed diethers (IIIa-s) have been prepared from 8-hydroxy-monoethers (IIa-g) which in turn have been obtained from citronellyl ethers (Ia-g) by selenium oxidation.Most of the diethers are oviposition deterrent, while some of them also show inhibition towards the development of mosquitoes.