Cationic silicon (ii) compounds are easily formed by reaction of π-bonded cyclopentadienyl silicon (II) compound with a carbo-cation. The compounds have catalytic uses, particularly as a hydrosilylation catalyst.

The present disclosure describes methods for silylating aromatic derivatives, comprising the use of hydrosilanes and potassium hydroxide.

The present disclosure describes methods for silylating heteroaromatic derivatives, comprising the use of hydrosilanes and potassium hydroxide.

This disclosure provides modulators of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR), pharmaceutical compositions containing at least one such modulator, methods of treatment of cystic fibrosis by administering such modulators and pharmaceutical compositions, and processes for making such modulators.

Processes are described for purifying acidic, preferably superacidic, in particular trifluoromethanesulfonic acid-acidified, end-equilibrated acetoxysiloxanes, wherein the acidic, preferably superacidic, in particular trifluoromethanesulfonic acid-acidified, acetic anhydride-containing and optionally acetic acid-containing equilibrated, preferably end-equilibrated acetoxysiloxane, which is optionally dissolved in an inert solvent, is contacted with a base, the precipitate is filtered off thereafter and then the filtrate obtained is optionally purified by distillation.

The present disclosure describes methods for silylating heteroaromatic derivatives, comprising the use of hydrosilanes and potassium hydroxide.

The present disclosure describes novel silylated heteroaromatic derivatives, including those prepared by methods comprising the use of hydrosilanes and at least one strong base, the definition of strong base now also including hydroxide, especially KOH.

Disclosed is a novel transition metal compound that exhibits excellent catalytic activity in polyethylene polymerization and is useful for preparing polyethylene having a high intramolecular short-chain branch content without deteriorating physical properties such as molecular weight, melting point, and density; a catalyst composition comprising the same; and a method for preparing polyethylene using the same.

The present disclosure relates generally to 1,2-azaborines and methods of making the same.

The present disclosure describes novel silylated heteroaromatic derivatives, including those prepared by methods comprising the use of hydrosilanes and at least one strong base, the definition of strong base now also including hydroxide, especially KOH.