Furthermore, styrene might be easily reacted with the reactive styryl
groups grafted onto organoclay surface that disturbed the exfoliation of organoclay layers, leading to the formation of nanocomposites of intercalated morphology.
An investigation of the chemical constituents in a dichloromethnae extract of Goniothalamus undulatus root led to the isolation of three known styryl
lactones (5-acetoxyisogoniothalamin oxide, O-acetylaltholactone and altholactone), and four known annonaceous acetogenins (annonacin, cis-annonacin, goniothalamicin and cis-goniothalamicin).
Marutzky and Roffael (1977) discussed the conversions of [omega]-hydroxypropiovanillon into acetovanillon (retro-aldol reaction), [alpha]-(3-methoxy-4-hydroxyphenyl)-glycerin-[beta]-guaiacylether into 3-methoxy-4-hydroxy-styryl
-[beta]-guaiacylether (retro-Prins reaction) as well as [beta]-1-dilignol-units toward styryl
derivatives (retro-Prins reaction) as potential delignification reactions, which also lead to the formation of formaldehyde.
Key statement: A process for preparing a functionalized anionic polymerization initiator, the process comprising combining a functionalized styryl
compound and an organolithium compound, where the functionalized styryl
compound is defined by the formula where each [R.
The phenylethynyl compounds are not as efficient as the styryl
ones as might be expected from reduced conjugation efficiency of the C |is identical to~ C triple bond.
Rigosertib, a novel styryl
benzyl sulfone, is a patent protected multi-kinase inhibitor with a unique mode of action.
This peak is believed (4) to be a consequence of the recombination among styryl
macroradicals, GMA macroradicals, and styryl
Clearly, the optimum silane in this instance would be Silane H, the cationic styryl
amine which gives a low viscosity mixture, as well as excellent final strength properties, in this case, using no coupling agent compromises the properties possible in the composite, and the processing would likely be more difficult.
lactones and their derivatives: biological activities, mechanisms of action and potential leads for drug design.
6) developed a model using QSAR techniques to estimate the reactivity of a molecule with the styryl
radical based on a series of chain transfer constants found in the literature.
The similarity observed in both polystyrenes, free and grafted, can be attributed to the fact that BPO initiator is nonselective in the initiation reactions in the presence of sty-rene and rubber (in our case SB), and so indiscriminately attacked the styrene monomer and the rubber chains (10) to form primary styryl
and polybutadienyl radicals.
We extracted and isolated three natural styryl
lactones from Goniothalamus griffithii Hook f.