As the ratio of reactions to chemicals increases, the number of reactions that are catalyzed
by the molecules in the system increases.
An alternative catalyst was quickly ruled out because all of the reclaimed sand had been catalyzed
with the TSA.
Among the topics are the hydrochlorination of acetylene catalyzed
by gold, gold-alkyne complexes, gold-catalyzed
aldol and related reactions, gold-catalyzed
oxygen-atom transfer to alkynes, and applications of gold-catalyzed
reactions to natural product synthesis.
These reactions may be catalyzed
with pyridine or triethylamine, which add even more nitrogen to the mold.
The researchers plan to incorporate this short RNA into sequences of a new set of RNA molecules and test those molecules for their ability to spur chemical reactions akin to those catalyzed
by modern enzymes, Szostak says.
The Formation of Carbon-Sulfur and Carbon-Selenium Bonds by Substitution and Addition Reactions Catalyzed
by Transition Metal Complexes
But two years of research at the University of Minnesota in Minneapolis and at ExxonMobil Chemical in Houston show that metallocene catalyzed
polyolefins can weld to each other with bond strengths much greater than are possible with conventional Ziegler-Natta catalyzed
Using hydrogen peroxide and horseradish peroxidase enzyme at a very acidic pH of 3, her group catalyzed
a completely clean conversion of aniline to conductive polyaniline.
Molds are bonded with Perstorp Fergusson P252 furan resin catalyzed
by paratoluenesulphonic acid (PTSA).
Olefin Oligomerizations and Polymerizations Catalyzed
by Iron and Cobalt Complexes
Castner is particularly noted for his pioneering work in the area of nickel catalyzed
diene polymerization for the synthesis of high cispolybutadiene.
Pinatubo's volcanic cloud passed overhead, and may in part reflect ozone destruction catalyzed
by sulfuric acid particles in the cloud, says David J.