Preparation of sulfur fine chemicals from sulfur sources is described.

The invention relates to a process for the manufacture of organomonosilanes, in particular, bearing both hydrogen and chlorine substituents at the silicon atom by subjecting a silane substrate comprising one or more organomonosilanes, with the proviso that at least one of these silanes has at least one chlorine substituent at the silicon atom, to the reaction with one or more metal hydrides selected from the group of an alkali metal hydride and an alkaline earth metal hydride in the presence of one or more compounds (C) acting as a redistribution catalyst.

The present invention relates to an integrated process for the manufacture of methylchlorohydridomonosilanes in particular, from products of the Mller-Rochow Direct Process.

A method of producing a halosiloxane, the method comprising: i) combining water, a halosilane, and a first solvent to form a reaction mixture, ii) partially hydrolyzing and condensing the halosilane to form a reaction product mixture comprising the halosiloxane, the solvent, unreacted halosilane, and hydrogen halide, iii) adding a second solvent, where the second solvent has a boiling point the boiling point of the halosiloxane, to the reaction mixture in i) or to the reaction product mixture in ii), and iv) recovering the halosiloxane from the reaction product mixture.

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 a the boiling point of the halosiloxane to the reaction mixture or the reaction product mixture.

Described are compounds of the structure R.sub.4-aSi-(Sp-Y).sub.aZ.sub.b, wherein a is an integer from 1 to 4; b is an integer from 0 to (3a); Z, which is absent when b=0, is R or

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wherein each R is halogen, C.sub.1-6 linear or branched alkyl, alkenyl, or alkynyl or C.sub.1-6 linear or branched halo-alkyl, halo-alkenyl, or halo-alkynyl; each Sp C.sub.1-15 linear or branched alkylenyl or C.sub.1-15 linear or branched halo-alkylenyl; and each Y an organic polar group. Also described are electrolyte compositions containing one or more of these compounds.

Disclosed herein are chlorodisazanes; silicon-heteroatom compounds synthesized therefrom; devices containing the silicon-heteroatom compounds; methods of making the chlorodisilazanes, the silicon-heteroatom compounds, and the devices; and uses of the chlorodisilazanes, silicon-heteroatom compounds, and devices.

Silane precursors and related methods are provided. A method for preparing a silane precursor may comprise one or more of the following steps: contacting a dihalide silane compound and an amine in a first solvent to obtain a first reaction product; and contacting the first reaction product and a reductant in a second solvent to obtain a second reaction product.

Described are compounds of the structure R4-.sub.aSi-(Sp-Y).sub.aZ.sub.b, wherein a is integer from 1 to 4; b is an integer from 0 to (3a); Z, which is absent when b R or formula (II), wherein each R is halogen, C.sub.1-6 linear or branched alkyl, alkenyl, or alkynyl or C.sub.1-6 linear or branched halo-alkyl, halo-alkenyl, or halo-alkynyl; each Sp C.sub.1-15 linear or branched alkylenyl or CMS linear or branched halo-alkylenyl; and each Y an organic polar group. Also described are electrolyte compositions containing one or more of these compounds.

A method for producing an organohalosilanes comprising reacting an organic compound comprising a halogen-substituted or unsubstituted alkane, a halogen-substituted or unsubstituted alkene, or an aromatic compound and at least one hydridohalosilane of formula R.sub.nSiH.sub.mX.sub.4-m-n, wherein each R is independently C-.sub.1-C-.sub.14 hydrocarbyl or C-.sub.1-C-.sub.14 halogen-substituted hydrocarbyl, X is fluoro, chloro, bromo, or iodo, n is 0, 1, or 2, m is 1, 2 or 3, and m+n=1, 2 or 3, in the presence of a heterogeneous catalyst comprising an oxide of one or more of the elements Sc, Y, Ti, Zr, Hf, B, Al, Ga, In, C, Si, Ge, Sn, or Pb, at a temperature greater than 100 C., and at a pressure of at least 690 kPa, to produce a crude reaction product comprising the organohalosilane.