New compositions of matter having two ring nuclei composed of 6 carbon atoms essentially superimposed in fixed parallel planes with respect to each other and process of preparing the same.

Reaction of a mono-olefin and a conjugated olefin in contact with a catalyst comprising a complex of nickel, a Group V-A electron donor ligand and a non-protonic Lewis acid and reducing agent on a solid, acidic silica-based support. Illustrative is the preparation of 1,4-dienes from the reaction of 1,3-butadiene and ethylene in contact with nickel acetylacetonate, triphenylphosphine, and ethylaluminumsesquichloride supported on silica-alumina pellets.

Cleansing compositions adapted to emit visible light during use, and which are thereby capable of conveying useful information to the user, are disclosed.

Electrophile compounds used as intermediates or pesticides can be detected by forming volatile derivatives of said compounds by treatment with N-alkylformamides producing isocyanide ions which contact an inert support medium, then treating said medium and its contents with a detector agent for said ions thus producing the color detector signal for said ions.

Dialkylmagnesium compounds undergo a smooth, uncatalyzed chain growth reaction with ethylene or other normally gaseous monoolefins provided the reaction is conducted in a single phase liquid reaction system. Aromatic hydrocarbons or weakly basic ethers are employed as the solvents. The dialkylmagnesium reactants used are those which are completely dissolved in the solvent under the chain growth conditions being used. The process often involves less undesirable side reactions than a comparable ch...

This invention relates to non-steroidal compounds that are modulators of androgen receptor, and also to the methods for the making and use of such compounds.

The invention relates to a process for the production of a nitrogen containing epihalohydrin polymer involving reaction of a nitrogen-containing precursor selected from the group consisting of amines, poly-amines, polyaminoamides, polyurethanes and mixtures thereof with epihalohydrin to form of a solution of said epihalohydrin polymer, the process comprising a purification step to remove organic impurities from the formed solution of the epihalohydrin polymer, said purification step comprising c...

Compounds of general formula I: ##STR00001## wherein: R.sub.1 and R.sub.2 are, independently of each other, selected from hydrogen, optionally substituted C.sub.1-10alkyl, optionally substituted --CO--(C.sub.1-10alkyl), optionally substituted C.sub.3-10cycloalkyl, optionally substituted --CO--(C.sub.3-10cycloalkyl), optionally substituted C.sub.2-10alkenyl, optionally substituted --CO--(C.sub.2-10alkenyl), optionally substituted aryl, and optionally substituted --CO-aryl, or R.sub.1 and R.sub.2 ...

The disclosure describes a specimen dispenser in which first and second syringes are used to dispense a sample liquid and a reagent liquid. The inlet orifice of the second syringe is connected to a second end opening of the first syringe through a three-way valve so that the first syringe is purged by reagent liquid each time a dispensing operation is completed.

It is disclosed that nitrilotriacetonitrile can be produced in improved yield and purity at a rapid rate from reactants based on ammonia, a mineral acid, formaldehyde and hydrogen cyanide wherein the reactants individually or in pre-formed combinations are brought together in a brief contact first zone, then cooled, then fed to a second zone for continued reaction. The intervening cooling step provides a reduced temperature feed to the second zone providing cooling of the second zone without req...