Patent application number | Description | Published |
20100121092 | PROCESS FOR PREPARING AN ALKENYLPHOSPHONIC ACID DERIVATIVE - Process for preparing an alkenylphosphonic acid derivative by reacting a phosphonic acid derivative with an alkyne in the presence of a complex catalyst system and a base whose conjugate acid has a pKa in dimethyl sulfoxide (25° C., 1 bar) of at least 6. | 05-13-2010 |
20100152481 | METHOD FOR PRODUCING VINYL ESTERS OF CARBOXYLIC ACIDS - The present invention relates to a process for preparing vinyl carboxylates, wherein a carboxylic acid is reacted with an alkyne compound in the presence of a catalyst which is selected from salts of perrhenic acid at a temperature of =250° C. | 06-17-2010 |
20110207634 | PREPARING ETHER CARBOXYLATES - The present invention relates to a process for preparing ether carboxylates. | 08-25-2011 |
20110207651 | PREPARING ETHER CARBOXYLATES - The present invention relates to a process for preparing ether carboxylates. | 08-25-2011 |
20110257431 | PROCESS FOR PRODUCING SIDE PRODUCT-FREE AMINOCARBOXYLATES - The present invention relates to a process for preparing aminocarboxylates, proceeding from amines, by employing a reaction sequence composed of ethoxylation to amino alcohols and subsequent oxidative dehydrogenation to the corresponding aminocarboxylates, especially the alkali metal or alkaline earth metal salts of the complexing agents MGDA (methylglycinediacetic acid), EDTA (ethylenediaminetetra-acetic acid) and GLDA (glutamic acid diacetic acid) or the free acids thereof. | 10-20-2011 |
20120264973 | PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES PROCEEDING FROM AMINO ACIDS - The present invention relates to a process for preparing aminopolycarboxylates proceeding from an amino acid which, in a
| 10-18-2012 |
20120302783 | PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES - What is proposed is a process for preparing aminopolycarboxylates proceeding from the corresponding polyalkanolamines by oxidative dehydrogenation in the presence of a catalyst comprising 1 to 90% by weight of copper, based on the total weight of the catalyst, using a base, which comprises first performing a partial conversion of the polyalkanolamine to a reaction mixture comprising the aminopolycarboxylate at a temperature in the range from 140 to 180° C. until at least 10 to 90 mol % of the polyalkanolamine has been depleted, and then continuing the conversion at elevated temperature. | 11-29-2012 |
20130158294 | PROCESS FOR THE PREPARATION OF RACEMIC ALPHA-AMINO ACIDS - Process for the preparation of racemic α-amino acids or of glycine, wherein the corresponding α-hydroxycarboxylic acid, selected from hydroxyacetic acid, lactic acid, malic acid, α-hydroxyglutamic acid, isocitric acid, tartronic acid and tartaric acid, or at least one salt of the corresponding α-hydroxycarboxylic acid is reacted in the presence of at least one heterogeneous catalyst which comprises at least one transition metal, in the presence of hydrogen with at least one nitrogen compound (c), where the nitrogen compound (c) is selected from primary and secondary amines and ammonia. | 06-20-2013 |
20130165689 | PROCESS FOR PREPARING ONE OR MORE COMPLEXING AGENTS SELECTED FROM METHYLGLYCINEDIACETIC ACID, GLUTAMIC ACID DIACETIC ACID AND SALTS THEREOF - Process for preparing one or more complexing agents selected from methylglycinediacetic acid, glutamic acid diacetic acid and salts thereof | 06-27-2013 |
20140296579 | ETHERS OF BIS (HYDROXYMETHYL) CYCLOHEXANES - The present invention relates to ethers of 1,2-, 1,3- and 1,4-bis(hydroxymethyl)cyclohexanes, to the preparation of such ethers and also to the use of such ethers as fragrances and as formulation auxiliaries in fragrance-comprising preparations. | 10-02-2014 |