Class / Patent application number | Description | Number of patent applications / Date published |
568704000 | Nitrogen containing | 10 |
20110105804 | Process for producing nitroalcohols - Nitroaldol (“Henry”) reactions between nitroalkanes and aldehydes in the presence of a catalyst and a two-phase reaction medium produce nitroalcohols at increased reaction rates compared to single-phase organic solvent systems, and do not require use of surfactants as is typical of single-phase aqueous solvent systems and solventless systems. The reaction medium comprises an organic solvent phase and an aqueous solvent phase. The aqueous solvent may be 100% water. | 05-05-2011 |
20150038746 | Process for the Preparation of Nitroalcohols - A process of preparing a nitroalcohol, e.g., 2-nitro-2-methyl-1-propane, from a nitropolyol, e.g., 2-nitro-2 -methyl-1,3-propanediol, the process comprising the step of contacting under hydrogenation conditions the nitropolyol with hydrogen, a hydrogenation catalyst and, optionally, a chelating agent. | 02-05-2015 |
20150329470 | DEHYDROXYLATION OF NITROALCOHOLS TO NITROALKANES - The present invention provides a process for producing nitroalkanes by dehydroxylation of nitroalcohols. This provides an alternate reaction route for making nitroalkanes, such as 2-nitropropane and its derivatives. | 11-19-2015 |
568705000 | Benzene ring containing | 5 |
568706000 | Phenols (H of -OH may be replaced by a Group IA or IIA light metal) | 5 |
20090043134 | SELECTIVE AND EFFICIENT BIFUNCTIONAL AND TRIFUNCTIONAL NANOPOROUS CATALYSTS - Selective and efficient multifunctional nanoporous catalysts containing spatially distributed organoamine and silanol groups, and methods of preparation thereof. The catalysts have been observed to be very highly efficient in catalysis of the Henry reaction. | 02-12-2009 |
20160145191 | LIQUID PHASE NITRATION OF AROMATICS USING SOLID ACID CATALYST - The present invention discloses an improved process for the liquid phase nitration of aromatic compounds catalyzed by WO3 supported on mesoporous silica support, at low temperature, with high conversion and selectivity. | 05-26-2016 |
568707000 | Plural rings containing | 1 |
20090062572 | Processes for the synthesis of O-desmethylvenlafaxine - The present invention describes processes for the preparation of O-desmethylvenlafaxine and the intermediates cyclohexylbenzylcyanide and tridesmethylvenlafaxine, which may be used as intermediates in preparing O-desmethylvenlafaxine. | 03-05-2009 |
568710000 | Polynitro | 2 |
20090005607 | Salts of Styphnic Acid - The invention relates to the salts of styphnic acid, to methods for producing the same and to their use. | 01-01-2009 |
568711000 | Dinitro | 1 |
20120197047 | PREVENTION OF PRECIPITATION FROM NITRATED AROMATIC CRUDE PRODUCTS - Precipitations of nitrohydroxyaromatic salts out of the nitrated crude products obtained in the nitration of aromatic compounds after alkaline scrubbing, for example mononitrotoluenes, are prevented by contacting the nitrated crude products with an acidic ion exchanger. The nitrated crude products are preferably selected from a feedstream to a distillation column, a bottoms circulation stream of a distillation column and a feedstream to a vaporizer. | 08-02-2012 |
568712000 | Polyhydroxy nitro containing | 2 |
20110065964 | Process For The Preparation Of Bronopol - The invention provides a process for preparing bronopol, which process comprises charging a reaction vessel with water, bromopicrin, nitromethane and paraformaldehyde, gradually feeding a base into said reaction vessel under stirring, bringing the reaction to completion and separating bronopol from the aqueous reaction mixture. | 03-17-2011 |
20140066662 | PROCESS FOR THE PREPARATION OF BRONOPOL - The invention provides a process for preparing bronopol, which process comprises charging a reaction vessel with water, bromopicrin, nitromethane and paraformaldehyde, gradually feeding a base into said reaction vessel under stirring, bringing the reaction to completion and separating bronopol from the aqueous reaction mixture. | 03-06-2014 |