Abstract: The invention relates to a method for producing cationic silicon (II) compounds of general formula I (RaSi)+HA???(I) by reacting the silicon (II) compounds of general formula II (Rb?H)(RaSi)+??(II) with a hydride acceptor compound A, wherein Ra, (Rb?H) and A have the definitions described in claim 1; to the cationic silicon (II) compounds of general formula I and use thereof as catalysts.

Abstract: The present invention relates to a method for producing amino acid group-containing organosilicon compounds (O), wherein the epoxy group-bearing organosilicon compounds are reacted with a stoichiometric excess of amino acids or the salts thereof in the presence of an alcohol.

Abstract: The object of the invention is therefore to provide a method for the preparation of amino-functional polyorganosiloxanes, in which (A) organosiloxanes containing Si—OH groups are reacted with (B) at least stoichiometric amounts of monoalkoxy(aminoalkyl) silanes with respect to the Si—OH groups, wherein catalytically active additives selected from acid, base or metal-organic compound are used in amounts of less than 0.1 ppm acid, less than 30 ppm base and less than 0.4% metal-organic compound.

Abstract: (Meth)acrylate-functionalized silicon compounds are easily prepared by the reaction of a (meth)acryloyl-functionalized chlorosilane with an organosilicon compound having silicon-bonded hydroxy groups. The carbon atom adjacent to the resulting O—Si linkage is bonded to at least one further carbon, rendering the product stable to hydrolysis despite the C—O—Si linkage.

Abstract: The invention relates to a method for producing cationic silicon(II) compounds of general formula I (RaSi)+HA???(I) by reacting the silicon(II) compounds of general formula II (Rb-H)(RaSi)+??(II) with a hydride acceptor compound A, wherein Ra, (Rb-H) and A have the definitions described in claim 1; to the cationic silicon(II) compounds of general formula I and use thereof as catalysts.

Abstract: The invention relates to a hydrosilylatable mixture M containing: (A) a compound with at least one hydrogen atom directly bonded to Si, (B) a compound containing at least one carbon-carbon multiple bond, and (C) a compound containing at least one cationic Si(II) group. The invention also relates to a method for hydrosilylating the mixture M.

Abstract: The object of the invention is therefore to provide a method for the preparation of amino-functional polyorganosiloxanes, in which (A) organosiloxanes containing Si—OH groups are reacted with (B) at least stoichiometric amounts of monoalkoxy(aminoalkyl) silanes with respect to the Si—OH groups, wherein catalytically active additives selected from acid, base or metal-organic compound are used in amounts of less than 0.1 ppm acid, less than 30 ppm base and less than 0.4% metal-organic compound.

Abstract: (Meth)acrylate-functionalized silicon compounds are easily prepared by the reaction of a (meth)acryloyl-functionalized chlorosilane with an organosilicon compound having silicon-bonded hydroxy groups. The carbon atom adjacent to the resulting O—Si linkage is bonded to at least one further carbon, rendering the product stable to hydrolysis despite the C—O—Si linkage.

Abstract: The invention provides a process for preparing organosilicon compounds (O) which contain free amino acid moieties and contain at least one unit of the general formula (I) and no unit or at least one unit of the general formula (II), R1b(X)cSiO[4?(b+c)]/2 (I), R2aSiO(4?a)/2 (II), in which epoxy-functional organosilicon compounds composed of at least one unit of the general formula (III) and no unit or at least one unit of the general formula (II), R1b(Z)cSiO[4?(b+c)]/2 (III), R2aSiO(4?a)/2 (II), where Z has the definition (formula A), are reacted with unprotected amino acids of the general formula (IV): H—NR7—(CH2)f—CR8R9—COOH, in the presence of aliphatic alcohols, where R1, R2, R4, R5, R6, R7, R8, R9, X, Z, Y, a, b, c, e and f have the definitions given in claim 1, the organosilicon compounds (O) which contain free amino acid moieties and are prepayable by the process, and uses for the organosilicon compounds (O).

Abstract: The present invention relates to a method for producing amino acid group-containing organosilicon compounds (O), wherein the epoxy group-bearing organosilicon compounds are reacted with a stoichiometric excess of amino acids or the salts thereof in the presence of an alcohol.

Abstract: The invention relates to a method for producing amino-functional polyorganosiloxanes, wherein (A) organosiloxanes which contain Si—OH groups are reacted with (B) at least stoichiometric quantities of mono-alkoxy(amino-alkyl)silanes, with respect to the Si—OH groups, (C) in the presence of at least one acid as a catalyst.

Abstract: Aminoalkylalkoxysilanes are prepared from halo(haloalkyl)silanes in the simultaneous presence of ammonia or primary organic amine and alcohol.

Abstract: The invention relates to a method for producing amino-functional polyorganosiloxanes, wherein (A) organosiloxanes which contain Si—OH groups are reacted with (B) at least stoichiometric quantities of mono-alkoxy (amino-alkyl) silanes, with respect to the Si—OH groups, (C) in the presence of at least one acid as a catalyst.

Abstract: Aminoalkylalkoxysilanes are prepared from halo(haloalkyl)silanes in the simultaneous presence of ammonia or primary organic amine and alcohol.

Abstract: A method for producing (hydroxymethyl)polysiloxanes of the general formula I (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2—(SiR22—X—Y—)aSiR22—CH2—OH]s[O1/2H]t??formula I, includes reacting silanol-containing organosiloxanes of the general formula II (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2H]r??formula II with cyclic or acyclic compounds that include at least one unit of the general formula III Z—[O—CH2—SiR22]n—Y??formula III

Abstract: Siloxacycles are efficiently prepared from compounds of the formula R1—C(?O)—[O—CH2—Si(R2)2]n—OR3??(II) by reaction in the presence of an alcohol and an acidic catalyst selected from organic resins with sulfo groups, acidic alumina, clay minerals, montmorillonites, acidic zeolites, iso- and heteropolyacids. The products can be produced in high yield and purity and are suitable for effectively end capping organopolysiloxanes.

Abstract: A method for producing (hydroxymethyl)polysiloxanes of the general formula I (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2—(SiR22—X—Y—)aSiR22—CH2—OH]s[O1/2H]t ??formula I, includes reacting silanol-containing organosiloxanes of the general formula II (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2H]r ??formula II with cyclic or acyclic compounds that include at least one unit of the general formula III.

Abstract: The invention provides a process for the synthesis of bis(aminoalkyl)disiloxanes of the general formula I by reaction of the carbamatosilanes of the general formula Ma or of the carbamatodisiloxanes of the general formula Mb or of mixtures thereof in the presence of water, where R1 is a divalent hydrocarbon radical having 1 to 100 C atoms, it being possible for the carbon chain to be interrupted by non-adjacent oxygens, sulphur atoms, —NR6—(CO)— or —NHCONH- groups and for the hydrogens in the divalent hydrocarbon radical individually to be substituted by F, Cl, NR7R8 or OR9 groups, and R2, R3, R4, R5, R6, R7, R8 and R9 are hydrocarbon radicals having 1 to 100 C atoms.

Abstract: Organosilicon compounds bearing carboxylic acid groups are easily and economically replaced in high yield by oxidation of a carbinol-functional organosilicon compound with an oxidizer in the presence of a moderator at a pH?3. Carboxyl-functional organopolysiloxanes highly useful as textile softeners may be obtained by this method.

Abstract: Organosilicon compounds bearing keto or aldehyde groups are easily prepared in high yield by oxidation of a carbinol-functional precursor by an oxidizing agent in the presence of a nitrogen-containing free radical mediator which contains aliphatic, cycloaliphatic, heterocyclic, or aromatic NO—, NOH—, or H—N—OH group. The oxidation may be conventional, i.e. using air, oxygen, or other oxidant, may be electrochemical, or enzymatic.