Abstract: The present invention involves processes that utilize an olefinic compound, in particular, hexafluoropropene (HFP) or chlorotrifluoroethene (CFC-1113) as extracting agents in the purification of pentafluoroethane (HFC-125). These processes can utilize recovered HFP as a precursor for the production of heptafluoropropane (HFC-227) or other derivatives.

Abstract: The present provides a Rhodotorula phenylalanine lyase polypeptide, polynucleotides that encode the polypeptide, and methods of obtaining and using these products. In particular the polypeptide can be employed for the production of phenylalanine, phenylalanine analogs, and optically active unnatural amino acids having phenylalanine-like structures.

Abstract: Highly fluorinated, saturated, and unsaturated fluoroethers are efficient, economical, non-ozone-depleting fire extinguishing agents used alone or in blends with other fire extinguishing agents in total flooding and portable systems. Methods for producing ethers, halogenated ether intermediates, and fluoroethers are disclosed. Novel fluoroether compositions are disclosed. Fluoroether extinguishing mixtures, methods, and systems are disclosed.

Abstract: Processes for the efficient production of chiral amino nitrites are disclosed. Generally, the processes include the esterification of the alcohol of a amino protected alcohol followed by nucleophilic substitution of the ester with a cyano group. In an exemplary embodiment the chiral amino nitrile produced is (R)-3-aminopentanenitrile.

Abstract: A method for the production of 1,1,1,3,3-pentafluoropropene, and particularly to a method characterized by high conversion, yield and selectivity by contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing catalyst. The 1,1,1,3,3-pentafluoropropene then can be reacted with hydrogen in the presence of a metal-containing catalyst to produce 1,1,1,3,3-pentafluoropropane.

Abstract: A method for the production of 1,1,1,3,3-pentafluoropropene, and particularly to a method characterized by high conversion, yield and selectivity by contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing catalyst. The 1,1,1,3,3-pentafluoropropene then can be reacted with hydrogen in the presence of a metal-containing catalyst to produce 1,1,1,3,3-pentafluoropropane.

Abstract: A method for suppressing a fire at a burning material comprising delivering to said burning material (a) an inert gas and (b) a gaseous compound selected from the group consisting of a hydrofluorocarbon, an iodofluorocarbon, and a mixture thereof, gases (a) and (b) being delivered in a combined concentration sufficient to extinguish the fire.

Abstract: The present provides a Rhodotorula phenylalanine lyase polypeptide, polynucleotides that encode the polypeptide, and methods of obtaining and using these products. In particular the polypeptide can be employed for the production of phenylalanine, phenylalanine analogs, and optically active unnatural amino acids having phenylalanine-like structures.

Abstract: A process for stereoselectively inverting a chiral center of a chemical compound is disclosed. The process first consists of forming a mixture of the chemical comopund, an enzymatic system, and a metal catalyst. Next, the process stereoselectively dehydrogenates a group attached to the chiral center with the enzymatic system in the presence of an oxidant to produce a dehydrogenated group, Lastly, the process hydrogenates the dehydrogenated group with the metal catalyst in the presence of a hydrogen source to stereoselectively invert the chiral center of the chemical compound.

Abstract: A method for suppressing a fire at a burning material comprising delivering to said burning material (a) an inert gas and (b) a gaseous compound selected from the group consisting of a hydrofluorocarbon, an iodofluoro-carbon, and a mixture thereof, gases (a) and (b) being delivered in a combined concentration sufficient to extinguish the fire.

Abstract: The present provides a Rhodotorula phenylalanine lyase polypeptide, polynucleotides that encode the polypeptide, and methods of obtaining and using these products. In particular the polypeptide can be employed for the production of phenylalanine, phenylalanine analogs, and optically active unnatural amino acids having phenylalanine-like structures.

Abstract: Bromine containing 1,2-bis(phenyl)difluoromethane derivatives, a method for their preparation and their use in flame retardant compositions.

Abstract: A method for suppressing a fire at a burning material comprising delivering to said burning material (a) an inert gas and (b) a gaseous compound selected from the group consisting of a hydrofluorocarbon, an iodofluorocarbon, and a mixture thereof, gases (a) and (b) being delivered in a combined concentration sufficient to extinguish the fire.

Abstract: A method for the production of 1,1,1,3,3-pentafluoropropene, and particularly to a method characterized by high conversion, yield and selectivity by contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing catalyst. The 1,1,1,3,3-pentafluoropropene then can be reacted with hydrogen in the presence of a metal-containing catalyst to produce 1,1,1,3,3-pentafluoropropane.