Abstract: Novel indanylidene compounds can be used as UV-A filters in cosmetic compositions for protecting skin and hair and for technical applications.

Abstract: A compound comprises a blocked halogenated hydroxydiphenyl ether of the formula: where X1 is a halogen, X2 is chlorine or bromine, X3 is hydrogen, chlorine or bromine, X4 is chlorine, bromine, alkyl having 1 to 3 carbon atoms, —CHO, —CN or —NH2, X5 is chlorine, bromine, methyl, trichloromethyl, —CHO, —CN or —NH2, n is 1 or 2, and R is an ether linkage inhibiting group.

Abstract: A fluorine-containing organic silicon compound represented by the following formula (1):   (1) provided that the symbols in the formula (1) have the following meanings: R1 and R2: respectively independently monovalent hydrocarbon groups; Af: a group represented by the following formula (2), (3), (4) or (5): A1—X1—  (2) A2—X2—O—X1—  (3) A1—X2—O—X1—  (4) A2—X1—  (5) provided that the symbols in the formulae (2), (3), (4) and (5) have the following meanings: A1: a monovalent polyfluorohydrocarbon group; A2: a monovalent polyfluorohydrocarbon group containing an etheric oxygen atom; X1: —(CH2)a— (a is an integer of at least 3); X2: a bivalent hydrocarbon group.

Abstract: The present invention provides an improved process and intermediate compounds for the preparation of di-fluorovinylsilane insecticidal and acaricidal agents of the formula I wherein Ar is phenyl, 1- or 2-napthyl or a 5- or 6-membered heteroaromatic ring, each of which may be optionally substituted by any combination of from one to three halogen, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, C(O)R2 or S(O)nR3 groups, R and R1 are each independently C1-C4 alkyl or C3-C5 cycloalkyl; Ar1 is phenoxyphenyl, phenyl, biphenyl; phenoxypyridyl, benzylpyridyl, benzylphenyl, 1- or 2- napthyl or a 5- or 6-membered heteroaromatic ring, each of which may be optionally substituted by any combination of from one to five halogen, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy or C(O)R4 groups, n is an integer of 0, 1 or 2; R2 and R4 are each independently C1-C4alkyl, benzyl or phenyl; R3 is C114 C4alkyl or C1 -C4haloalkyl; and the fluorine atoms attached to the double bond are tra

Abstract: The following class of glycidyl and allyl ethers are found to cure at room temperature much faster than their glycidyl and allyl analogs: ##STR1## where: R.sub.1 is selected from the group consisting of:(a) an aliphatic hydrocarbon group containing 2 to 10 carbon atoms; and(b) a group having the formula ##STR2## wherein n=1 to 3,m=0 to 5R.sub.2 and R.sub.2 ' are each selected from the group consisting of an alkyl group containing 1 to 4 carbon atoms, an unsubstituted aryl group, and a substituted aryl group, and R.sub.

Abstract: A method of lowering plasma cholesterol level in a patient with hypercholesterolemia, by administration of a compound of formula (1) ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently a C.sub.1 -C.sub.6 alkyl group;Z is a thio, oxy or methylene group;A is a C.sub.1 -C.sub.4 alkylene group; andR.sub.5 is a C.sub.1 -C.sub.6 alkyl or --(CH.sub.2).sub.n --(Ar)wherein n is an integer 0, 1, 2 or 3; and Ar is phenyl or napthyl unsubstituted or substituted with one to three substituents selected from the group consisting of hydroxy, methoxy, ethoxy, chloro, fluoro or C.sub.1 -C.sub.6 alkyl.

Abstract: Disclosed are processes for the preparation of new bridged cyclopentadienylmagnesium compounds of the general formula Q(CpR.sub.a)(Cp'R'.sub.a ')Mg, and the use thereof for preparing bridged metallocenes.

Abstract: Disclosed are new bridged cyclopentadienylmagnesium compounds of the general formula Q(CpR.sub.a) (Cp'R'.sub.a')Mg, processes for the preparation thereof, and the use thereof for preparing bridged metallocenes.

Abstract: A mesomorphic compound represented by the following formula (I): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 2-16 carbon atoms capable of including one or two non-neighboring methylene groups which can be replaced with ##STR2## and capable of including fluorine substituted for hydrogen; A denotes --A.sub.1 -- or --A.sub.1 --A.sub.2 -- and B denotes --B.sub.1 -- or --B.sub.1 --B.sub.2 -- wherein A.sub.1, A.sub.2, B.sub.1 and B.sub.2 respectively denote ##STR3## wherein Y.sub.1 and Y.sub.2 respectively denote H, F, Cl, Br, --CH.sub.3, --CN or --CF.sub.3 ; Z.sub.1 and Z.sub.2 respectively denote ##STR4## Z.sub.3 denotes ##STR5## R.sub.2, R.sub.3 and R.sub.4 respectively denote a linear or branched alkyl group having 1-16 carbon atoms including a methylene group which can be replaced with ##STR6## with proviso that it is not adjacent to the silicon atom; p and q are respectively 0 or 1 with proviso that p+q is 0 or 1; and n is an integer of 1-12.

Abstract: Compounds containing a dimethylsilane core and a phenoxybenzyl substituent are found to exhibit pyrethroid-like activity toward insects with low toxicity to fish.

Abstract: Mono- or bis(iodonium salts) are produced in neutral organic solvents by the reaction of an [hydroxy (organosulfonyloxy)iodo]arene with a bis(triorganosilyl)arene, a bis(trihalosilyl)arene, or with a mono- or bis(triorganosilyl)heterocyclic compound, or a mono- or bis(trihalosilyl)heterocyclic. The iodonium salts are made under conditions of regiospecific control.

Abstract: A trifluoromethyl-phenoxy-phenyl-silicon compound is disclosed of the general formula ##STR1## in which X.sup.1 and X.sup.2 independently of each other represent a hydrogen, fluorine, chlorine, bromine or iodine atom,Y represents a hydrogen or halogen atom or a cyano or nitro group,n is 0 or 1,m is 0, 1, 2 or 3,p is 0, 1, 2 or 3,X.sup.3 and X.sup.4 independently of each other represent oxygen or a --CO--O-- group,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent a hydrogen atom or a C.sub.1 to C.sub.5 alkyl group,R.sup.5 and R.sup.6 independently of each other represent a C.sub.1 to C.sub.5 alkyl group, andR.sup.7 represents a C.sub.1 to C.sub.5 alkyl or hydroxyl group, a chlorine, bromine, or iodine atom or a C.sub.2 to C.sub.5 alkenoxy, C.sub.2 to C.sub.5 alkinoxy,C.sub.1 to C.sub.5 alkylthio, C.sub.2 to C.sub.5 alkenyl-thio or C.sub.2 to C.sub.5 alkinyl-thio group or a C.sub.1 to C.sub.

Abstract: This invention relates to polymeric organosilicon compounds containing aryl radicals and to a method for improving the gliding or slipping properties of organic fibers treated therewith. The polymeric organosilicon compounds are represented by the formulaM.sub.a R.sub.b Si{[(OSiR.sub.2).sub.n D].sub.m (OSiR.sub.2).sub.n OSiR.sub.3-d M.sub.d }.sub.4-a-bin which R is hydrocarbon or substituted hydrocarbon radical, D represents radicals of the formula--X.sub.a A--X.sub.a (A--X.sub.a).sub.c --,X represents the groups: ##STR1## --NR'--, --O--, --S--, --SO.sub.2 --, --R"--, --NR'R", ##STR2## --OR"--, --SR"--, --SO.sub.2 R", where R' is hydrogen or R, R" is a bivalent aliphatic hydrocarbon radical, A is a bivalent or substituted bivalent aromatic hydrocarbon radical, M represents radicals of the formula--X.sub.a --A--X.sub.a (A--X.sub.a).sub.c H,a is 0 or 1, b is 0, 1 or 2, c is 0 or a number of from 1 to 5, m is 0 or a number of from 1 to 20, n is a number of from 1 to 1,000 with the proviso that at least one OSiP.