نتایج جستجو برای: catalyses
تعداد نتایج: 2159 فیلتر نتایج به سال:
Abstract We report a series of rotaxane‐based anion–π catalysts in which the mechanical bond between bipyridine macrocycle and an axle containing NDI unit is intrinsic to activity observed, including [3]rotaxane that catalyses otherwise disfavoured Michael addition >60 fold selectivity over competing decarboxylation pathway dominates under Brønsted base conditions. The results are rationaliz...
Transfer hydrogenation of unfunctionalised and aliphatic alkenes in iPrOH/KOH is efficiently catalysed by an olefin-tethered N-heterocyclic carbene ruthenium complex, which also catalyses double bond migration as a competitive and considerably faster process.
A protonated Zn(II) complex with a terpyridine-containing pentaamine macrocycle catalyses ATP hydrolysis in the presence of a second metal ion, which acts as cofactor assisting the phosphoryl transfer from ATP to an amine group of the receptor.
Many advantages of supercritical fluids come from their interesting or unusual properties which liquid solvents and gas carriers do not possess. Such properties and possible applications of supercritical fluids are reviewed. As these fluids never condense at above their critical temperatures, supercritical drying is useful to prepare dry-gel. The solubility and other important parameters as a s...
This is the Introduction to special issue on Covid-19 and cultural constructions of a global crisis. Contextualizing understandings pandemic in relation concepts ‘event’ ‘crisis’, especially idea that modernity itself condition perpetual crisis, it proposes crisis-event catalyses new possibilities for making visible endemic inequalities injustices across highly variable social domains, from per...
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