Abstract: This process relates to the synthesis of unsaturated aliphatic esters useful as insect sex attractants, including gossyplure, the insect sex pheromone of the pink bollworm moth, Pectinophora gossypiella, and intermediates therefor. The process utilizes a cyclic phosphonium (Wittig) reagent.

Abstract: There are provided ultraviolet light absorbing agents of the following general formula ##STR1## wherein: X is ##STR2## Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CH.sub.2 (CH.sub.2).sub.n Si(R.sub.2).sub.x (OR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 =alkyl or alkanoyl having 1 to 6 carbon atoms, R.sub.2 =alkyl having 1 to 6 carbon atoms, n=0, 1 or 2, and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.

Abstract: A novel norpatchoulenol synthesis is disclosed. The key step in the synthesis is an intramolecular Diels-Alder condensation of a trisubstituted silyloxy derivative of cyclohexadienone. Novel intermediates, namely trisubstituted silyloxy methanonaphthalenes (Formula V, infra) and trisubstituted silyloxy cyclohexadienes (Formula IV, infra) are also disclosed.

Abstract: The invention provides a novel class of organopolysiloxane compounds having at least one benzoin group represented by the general formula ##STR1## in which Ph is a phenyl group and R is a hydrogen atom or an alkyl group, bonded to the silicon atom in a molecule. The benzoin-bonded organopolysiloxane compounds can readily be prepared by the dehydrohalogenation, dehydrogenation, dehydration or dealkoholation condensation reaction between a corresponding organopolysiloxane having silicon-bonded halogen atoms, hydrogen atoms, hydroxy groups or alkoxy groups and an .alpha.-substituted or unsubstituted benzoin compound in the presence of a suitable reaction promotor or a condensation catalyst.

Abstract: Novel organosilicon compounds and processes for their preparation are disclosed. The compounds are di- and trisilanes of the formula:(R--Si (R.sub.1).sub.2 --G--Y--.sub.n Qin which R represents a radical containing one double ethylene bond, R.sub.1 represents a hydrocarbon radical, G represents a carbocyclic aromatic or heterocyclic radical, Y represents CONH or COO, Q represents an organic radical and n is an integer equal to 2 or 3. The compounds are useful in preparing thermoplastic elastomers.

Abstract: Prostaglandin derivatives having a 19,20-didehydro, a 19-hydroxy, or a 19-keto feature are disclosed, including processes for preparing them and the appropriate intermediates.A typical 19-hydroxy compound of this invention is 19-hydroxy-19-methyl-PGF.sub.2.alpha.

Abstract: Alkoxysilyl ethers of 1,3-dicarbonyl cyclic compounds, such as methoxy tris-5,5-dimethyl-cyclohexen-2-one-3-yloxy silane can be made by effecting reaction in the presence of an acid acceptor between an alkanol, a halosilane and a 1,3-dicarbonyl cyclic organic compound, for example, 5,5-dimethyl-1,3-cyclohexane dione. The alkoxysilyl ethers are useful as vulcanizing agents for silanol terminated polydiorganosiloxanes.

Abstract: According to the invention, the method for producing mineral polymer fillers containing graft hydroperoxide groups consists in treating mineral fillers at a temperature of 50.degree. to 150.degree. C. and a pressure of 1.33.10.sup.2 to 4.10.sup.5 Pa (1 mm Hg to 4 atm) with organosilicon compounds of the general formula:R.sub.4-y SiX.sub.yorR'R.sub.3-z SiX.sub.z,whereR is vinyl, allyl or norbornyl,X is chlorine, alkoxy or acyloxy,y=1-3,z=1-2,R' is methyl, ethyl or propyl,whereupon the mineral filler containing graft unsaturated groups is separated from the reaction mixture, dried and ozonized with an ozone-oxygen mixture containing 4 to 6 percent by volume of ozone at a temperature of -20.degree. C. to +20.degree. C. in an aliphatic saturated monohydric alcohol or aliphatic saturated monohydric acid.The method for producing mineral polymer fillers containing graft hydroperoxide groups is quite simple and makes it possible to carry out the filling and grafting of polymers at a reduced temperature of 50.degree.

Abstract: Silyl ethers of 1,3-dicarbonyl cyclic compounds, such as methyl tris-5,5-dimethyl-cyclohexen-2-one-3-yloxy silane can be made by effecting reaction in the presence of an acid acceptor between an organo halosilane and a 1,3-dicarbonyl cyclic organic compound, for example, 5,5-dimethyl-1,3-cyclohexane dione. The silyl ethers are useful as vulcanizing agents for silanol terminated polydiorganosiloxanes.

Abstract: Novel organosilicon compounds and processes for their preparation are disclosed. The compounds are di- and trisilanes of the formula(R--Si (R.sub.1).sub.2 --G--Y--.sub.n Qin which R represents a radical containing one double ethylene bond, R.sub.1 represents a hydrocarbon radical, G represents a carbocyclic aromatic or heterocyclic radical, Y represents CONH or COO, Q represents an organic radical and n is an integer equal to 2 or 3. The compounds are useful in preparing thermoplastic elastomers.

Abstract: This disclosure describes novel 15-deoxy-16 hydroxy-16-substituted prostanoic acid analogs in which the C-1 carboxyl is replaced by a primary alcohol and carboxylic acid esters, carbonates and carbomates thereof. The prostanoic carbinols and carboxylic acid esters thereof described herein have utility as bronchodilators as hypotensive agents, and as agents for the control of excessive gastric secretion.

Abstract: Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the F.sub.1 series.

Abstract: Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the A.sub.1 series.