Organic compounds -- part of the class 532-570 series inventions 03/07

20070073065 - Substituted optically active disphosphine compound: P

20070073066 - Method for purifying dianhydrides: A method for purifying dianhydrides is provided. In one aspect, purified oxybisphthalic anhydrides, intermediates useful in the preparation of polyetherimides are provided. In one embodiment, a first solution containing a dianhydride compound, a solvent, and a phase transfer catalyst is contacted with a solid inorganic adsorbent material having a total... Agent: Andrew J. Caruso General Electric Global Research

20070073067 - Supercritical fluid phase synthesis of methylene lactones using catalysts derived from hydrotalcites: Supercritical fluid phase process for converting certain lactones to their alpha-methylene substituted forms using a catalyst made from a thermally decomposed hydrotalcite.... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20070073068 - Process for the preparation of (s)-glyceraldehyde acetonide: The invention relates to a process for the preparation of (S)-glyceraldehyde acetonide in aqueous solution from 3,4-O-isopropylidene-L-threonic acid or a salt thereof in aqueous solution, and hypochlorite in aqueous solution wherein the aqueous hypochlorite solution has a pH >7.5 and wherein during addition of at least 0.1 molar equivalents of... Agent: Nixon & Vanderhye, PC

20070073069 - Semi-synthesis and isolation of taxane intermediates from a mixture of taxanes: A process is provided for the semi-synthesis and isolation of taxane intermediates useful in the preparation of paclitaxel and docetaxel, in particular, the semi-synthesis and isolation of 10-deacetylbaccatin III, and protected derivatives thereof, from a mixture of taxanes.... Agent: Cindy A. Lynch Conor Medsystems, Inc.

20070066836 - Method for producing phthalic anhydride: The invention relates to a process for preparing phthalic anhydride, in which the catalytic gas-phase oxidation of o-xylene and/or naphthalene is carried out over at least three zones of catalysts of increasing activity, with only the last zone of the catalyst system containing phosphorus and the last zone also comprising... Agent: Connolly Bove Lodge & Hutz, LLP

20070066837 - Podophyllotoxin derivatives as antitumor agents: This invention relates to podophyllotoxin derivatives, more particularly to 4β-amino and 4β-amido derivatives of podophyllotoxin and 4′-O-demethylepipodophyllotoxin, which are useful for the treatment of tumors. Processes for the preparation of the compounds disclosed herein, pharmaceutical compositions containing these compounds, and methods for treating tumors are provided. The invention further relates... Agent: Ranbaxy Inc.

20070060758 - Production of aldehydes, carboxylic acids and/or carboxylic acid anhydrides by means of catalysts containing vanadium oxide, titanium dioxide, and antimony oxide: A description is given of a process for preparing aldehydes, carboxylic acids and/or carboxylic anhydrides, in particular phthalic anhydride, in which a gaseous stream comprising an aromatic hydrocarbon and molecular oxygen is passed at elevated temperature over a bed of a first catalyst and a bed which is made up... Agent: Connolly Bove Lodge & Hutz, LLP

20070060759 - Method for the preparation of citalopram: A method for the preparation of citalopram and its pharmaceutically acceptable salts is described; it's obtained starting from 5-cyanophthalide by reaction with a mixture of 4fluorophenyl magnesium bromide and 3-dimethylaminopropyl magnesium chloride. The intermediate obtained is showed here-be-low: wherein X is an halogen, preferably chlorine or bromine, which is cyclized... Agent: Perkins Coie LLP

20070060760 - (meth) acryloyl group-containing oxetane compound and production method thereof: (In the formula, R1 represents a hydrogen atom or a methyl group, A represents —OR2— or a bond, R2 represents a divalent hydrocarbon group which may contain an oxygen atom in the main chain, R3 represents a linear or branched alkylene group having 1 to 6 carbon atoms, and R4... Agent: Sughrue Mion, PLLC

20070055070 - Novel esters of lipoic acid: A process is provided for producing lipoate esters from α-lipoic acid. The process comprises reacting α-lipoic acid with an alcohol and then adding a polymerization inhibitor such as L-cysteine.... Agent: King & Schickli, Pllc

20070049761 - Substituted phosphonate fluorescent sensors and use thereof: The invention relates to new compounds of formula (1) wherein R is hydrogen or a linear or branched C1-40alkyl; where X is O, S, or NR1 where R1 is a hydrogen, a linear or branched C1-40alkyl, C2-40alkenyl or C2-40alkynyl group, an aryl, a heteroaryl or C1-40 alkylaryl or alkylheteroaryl group... Agent: Cozen O' Connor , P.C.

20070049762 - Process for the manufacture of trimethylydroquine dialkanoates: The present invention is directed to a process for the manufacture of a 2,3,5-trimethyl-hydroquinone dialkanoate comprising reacting ketoisophorone with an acylating agent in the presence of an indium salt as the catalyst. Preferred are indium(III) salts such as indium trichloride or indium tris(trifluoromethanesulfonate). Further aspects of the present invention are... Agent: Nixon & Vanderhye, PC