Degussa Aktiengesellschaft

Deutsche Gold- Und Silber-scheideanstalt Vormals Roessler

Other

Wolfgang Buder

Peter K Kleinschmit

Peter Panster

Rudolf Michel

Alfons Karl

Siegfried Wolff

Ulrich Deschler

Rudolf Schwarz

Heinz Grewatta

Hans-Dieter Pletka

Gerhard Dusing

The invention is directed to N,N' and N,N',N'-substituted silylureas and a process for their production in which in a single step process there are reacted a halogenoalkylsilane or a halogenbenzylsilane with a primary or secondary amine and an alkali cyanate in equimolar amounts.

N,N'- and N,N',N'-substituted silylureas and process for their production

A method for the preparation of 3-chloropropyltrichlorosilane is carried out by conversion of trichlorosilane with allylchloride in the presence of a platinum containing polymeric organosiloxane-ammonium compound containing units represented by the structural formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 represent a group of the formula:

Method for preparation of 3-chloropropyl-trichlorosilane

The invention is directed to vulcanizable halogen containing rubber mixtures which contain a silicate filler and a silicon containing isothiuronium compound and a process for vulcanizing or cross-linking these mixtures.

Process for vulcanization or cross-linking halogen containing rubbers in

Polymeric tertiary and secondary amines as described with a silica-type backbone, comprising units of the formula: ##STR1## in which R.sup.1 and R.sup.2 represent a group ##STR2## R.sup.4 is alkylene and the free valencies of the oxygen atoms are saturated by silicon atoms of further groups (2), if appropriate with incorporation of crosslinking agents, R.sup.3 has the same meaning as R.sup.1 and R.sup.2, or it represents hydrogen, alkyl, cycloalkyl or benzyl. Also disclosed are processes for preparing the polymeric tertiary and secondary amines and the use of these materials for removing acids from liquids and gases.

Polymeric tertiary and secondary amines with a silica-type backbone,

There are prepared azido groups containing organosilicon compounds of the formula ##EQU1## where R is a divalent hydrocarbon group having 1 to 8 carbon atoms which is free from ethylenically unsaturated bonds and whose carbon chain in a given case, is interrupted once by --O--, --S--, or --NR.sup.3 where R.sup.3 is hydrogen, methyl, ethyl, or phenyl,

Production of organosilicon compounds having azido groups

There are prepared aqueous solutions of cationic organosilicon compounds which are produced by reacting an alkoxysilylalkyl halide of the formula (RO).sub.3-n R.sub.n.sup.1 --Si--R.sup.2 --X (I) where R is C.sub.1 to C.sub.5 alkyl, methoxy, ethoxy, phenyl, or C.sub.5 to C.sub.8 cycloalkyl; R.sup.1 is C.sub.1 to C.sub.5 alkyl, phenyl, tolyl, benzyl, or C.sub.5 to C.sub.8 cycloalkyl; R.sup.2 is a divalent ethylenic double bond free hydrocarbon group having 3 to 8 carbon atoms, n is zero, 1 or 2 and X is chlorine, bromine, or iodine with a tertiary amine of the formula R.sup.3 NR.sup.4 R.sup.5 (II) where R.sup.3, R.sup.4, and R.sup.5 are the same or different and each is an alkyl group or benzyl in which the number of carbon atoms of the alkyl group or the alkyl groups together is up to 30 or R.sup.4 and .sup.5 together with the nitrogen atom, as well as in a given case a further hetero atom selected from the group consisting of oxygen, nitrogen, and sulfur is a univalent five to eight membered heterocyclic ring having three to seven --CH.sub.2 -- groups in the heterocyclic ring, or R.sup.5 is a C.sub.3 to C.sub.12 cycloalkyl group in aqueous medium at a temperature from room temperature (e.g. about 20.degree. C.) to 300.degree. C. at a mole ratio of (I) to (II) between 1:0.8 to 1:1,2 and in a given case under pressure.

Aqueous solution of cationic organosilicon compounds and process for the

The subject of the invention is a process for the manufacture of (iodoorganyl)alkoxysilanes of the general formula: ##STR1## in which R.sup.1 is an alkylene group, R.sup.2 is an alkoxy group and R.sup.3 and R.sup.4 an alkoxy group and/or an alkyl or aryl group, whereby the chlorine or bromine compound corresponding to that of formula (1) is caused to react with stoichiometric to double molar quantities of an inorganic iodine donor in the presence of 0.01-5 mol % of an organic substituted onium salt of nitrogen, phosphorus, arsenic or antimony or an organic substituted sulfonium salt or a crown ether as catalyst, in certain solubilizing agents.

Process for the manufacture of (iodoorganyl)alkoxysilanes

There are prepared nitrogen containing alkoxysilanes of the formula (RO).sub.3-n (CH.sub.3).sub.n Si(CH.sub.2).sub.m NHCON.sub.3 in which R is an alkyl group having 1 to 3 carbon atoms, n is 0, 1 or 2 and m is 1, 2 or 3 by a process comprising dissolving in an inert solvent an isocyanate group containing silane of the formula (RO).sub.3-n (CH.sub.3).sub.n Si(CH.sub.2).sub.m N.dbd.C.dbd.O in which R, n and m are as defined above and reacting the silane with a water free hydrogen nitride or with hydrogen halide and an alkali metal-alkaline earth metal-, or ammonium azide at a temperature between 0.degree. C. and the boiling point of the inert solvent. The compounds are useful in making phosphinimines.

Nitrogen containing alkoxysilane and process for its production

The invention relates to coordination compounds of rhodium with silicon-substitued dialkyl or diaryl sulfide groups as ligands in monomeric, polymeric or carrier-fixed forms. The substance can be used as catalysts.

Monomeric, polymeric and carrier-fixed rhodium complex compounds,

There is provided a process for the production of sulfur containing organosilicon compounds of the formula (I) Z -- Alk -- S.sub.x -- Alk -- Z, where Z is the grouping: ##STR1## in which R.sup.1 is an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group with 5 to 8 carbon atoms, the benzyl group, phenyl or phenyl substituted with at least one methyl, ethyl or chloro group, R.sup.2 is alkoxy of 1 to 4 carbon atoms, methoxyethoxy, cycloalkoxy with 5 to 8 carbon atoms, phenoxy or benzyloxy, R.sup.3 and R.sup.4 are alkyl of 1 to 3 carbon atoms or hydrogen, Alk is divalent saturated hydrocarbon group having 1 to 5 carbon atoms or such a group interrupted by --O--, --S-- or --NH-- and x is a number from 2.0 to 6.0 comprising reacting an alkali metal alcoholate, preferably in alcoholic solution with a compound of the formula (II) Z -- Alk -- Hal, where Hal is chlorine, bromine or iodine with a hydrosulfide of the formula (III) MeSH, in which Me is ammonium, an alkali metal atom or an equivalent of an alkaline earth metal or zinc and with sulfur, preferably in the presence of at least one organic solvent, separating from the halide formed, and removing the organic solvent.

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Rodenbach, Germany

Wolfgang Buder