A method of producing a halosiloxane, the method comprising: combining water, a halosilane, and a first solvent, where the first solvent has a water solubility of >1.5 grams in 100 ml of solvent, to form a reaction mixture having a temperature above the melting point temperature of the solvent, partially hydrolyzing and condensing the halosilane to form a reaction product mixture comprising the halosiloxane, the solvent, a hydrogen halide and unreacted halosilane, and, optionally, adding a second solvent with a boiling point≥the boiling point of the halosiloxane to the reaction mixture or the reaction product mixture.

A halosilane compound: R.sup.1CH.sub.2CH.sub.2SiR.sup.5.sub.2X is prepared by hydrosilylation reaction of a vinyl compound: R.sup.1CH═CH.sub.2 with a halogenodiorganosilane compound having formula: HSiR.sup.5.sub.2X in the co-presence of an iridium catalyst, an internal olefin compound, and an allyl halide. The halosilane compound is prepared on an industrial scale with the advantages of low costs, high yields, and high selectivity, using a small amount of iridium catalyst.

Provided are: a nonaqueous electrolytic solution for a nonaqueous electrolytic solution battery including a positive electrode and a negative electrode that are capable of occluding and releasing metal ions, which nonaqueous electrolytic solution is characterized by containing a compound represented by Formula (1) along with an alkali metal salt and a nonaqueous solvent.

##STR00001##

The present disclosure sets forth novel compounds and compositions including heteroaromatic silicon-fluoride-acceptors, which are useful for PET scanning. The present disclosure further includes novel methods of .sup.8F imaging for PET scanning, the methods comprising the preparation of conjugates and bioconjugates of biological ligands of interest with heteroaromatic silicon-fluoride-acceptors. In certain embodiments the invention is practiced in the form of a kit.

The present disclosure sets forth novel compounds and compositions including heteroaromatic silicon-fluoride-acceptors, which are useful for PET scanning. The present disclosure further includes novel methods of .sup.8F imaging for PET scanning, the methods comprising the preparation of conjugates and bioconjugates of biological ligands of interest with heteroaromatic silicon-fluoride-acceptors. In certain embodiments the invention is practiced in the form of a kit.

The present invention includes novel compounds and compositions including heteroaromatic Silicon-Fluoride-Acceptors, which are useful for PET imaging, as well as methods for making and using these compounds. The present invention further includes methods of .sup.18F imaging for PET scanning. In one embodiment the invention is practiced in the form of a kit.

The present invention includes novel compounds and compositions including heteroaromatic Silicon-Fluoride-Acceptors, which are useful for PET imaging, as well as methods for making and using these compounds. The present invention further includes methods of .sup.18F imaging for PET scanning. In one embodiment the invention is practiced in the form of a kit.

A method for the preparation of isocyanates in which: (i) a first organosilicon compound having at least one silicon atom Si.sup.1 and a unit of formula G-I bound thereto

##STR00001##

is converted to a third organosilicon compound having a unit of formula G-II

##STR00002##

by silylation of the NH group of the unit of formula G-I with a second organosilicon compound having one silicon atom Si.sup.2; and (ii) the third organosilicon compound is reacted to an isocyanate by thermolysis, whereby the unit of formula G-II is converted to an isocyanate group.

An electrolyte containing vinylene carbonate, an amine, a nitrile, and a conductive lithium salt is useful in lithium ion batteries to improve discharge retention after multiple charge/discharge cycles.

An electrolyte containing vinylene carbonate, an amine, a nitrile, and a conductive lithium salt is useful in lithium ion batteries to improve discharge retention after multiple charge/discharge cycles.