Patent application number | Description | Published |
20110028727 | PROCESS FOR THE SELECTIVE PREPARATION OF 3-METHYLPYRIDINE (3-PICOLINE) FROM ACROLEIN AND ONE OR MORE AMMONIUM SALTS DISSOLVED IN WATER - The present invention relates to a process for the selective preparation of 3-methylpyridine, characterized in that acrolein and one or more ammonium salt(s) dissolved in water are reacted continuously under high pressures and at temperatures of 200-400° C. | 02-03-2011 |
20110028764 | PROCESS FOR THE SELECTIVE PREPARATION OF ACETALDEHYDE FROM ACROLEIN AND ONE OR MORE AMMONIUM SALTS DISSOLVED IN WATER - The present invention relates to a process for the selective preparation of acetaldehyde, characterized in that acrolein and one or more ammonium salts dissolved in water are reacted continuously under high pressures and at temperatures of 300-400° C. | 02-03-2011 |
20110195012 | PROCESS FOR REMOVING HYDROGEN CYANIDE FROM ETHANEDINITRILE - Process for removing hydrogen cyanide from ethanedinitrile by contacting hydrogen cyanide-containing ethanedinitrile with an organic reagent under formation of a covalent bond. | 08-11-2011 |
20110275872 | PROCESS FOR THE SYNTHESIS OF ETHYNYLCYCLOPROPANE - Ethynylcyclopropane is prepared in a two-step process by reacting (1,1-dimethoxyethyl)-cyclopropane with a thiol and eliminating the thiol from the intermediate. | 11-10-2011 |
20120022275 | PROCESS FOR THE PRODUCTION OF CARNITINE BY CYCLOADDITION - The invention relates to a method for the production of L-carnitine, wherein a chiral β-lactone carnitine precursor is obtained by a [2+2] cycloaddition of ketene with an aldehyde X—CH | 01-26-2012 |
20120022288 | PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES - The invention relates to a method for the production of L-carnitine, wherein a β-lactone, which is a 4-(halomethyl)oxetane-2-one, is converted into carnitine with trimethylamine (TMA), wherein the β-lactone is not subjected to a basic hydrolysis step before being contacted with the trimethylamine. The invention also relates to a carnitine having a unique impurity profile. | 01-26-2012 |
20130338394 | PROCESS FOR THE PREPARATION OF ENOLATE SALTS OF 4-FLUORO-2-HYDROXYMETHYLENE-3 OXO-BUTYRATES - Enolate salts of 4-fluoro-2-hydroxymethylene-3-oxobutyrates of formula wherein R | 12-19-2013 |
20150126775 | PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES - The invention relates to a method for the production of L-carnitine, wherein a β-lactone, which is a 4-(halomethyl)oxetane-2-one, is converted into carnitine with trimethylamine (TMA), wherein the β-lactone is not subjected to a basic hydrolysis step before being contacted with the trimethylamine. The invention also relates to a carnitine having a unique impurity profile. | 05-07-2015 |