Patent application number | Description | Published |
20100015675 | Process for the production of fluorine containing alpha-hydroxy carboxylic acids - A process for the production of a fluorine containing α-hydroxy carboxylic acid by hydrolyzing a fluorine containing α-hydroxy nitrite in the presence of a nitrilase. | 01-21-2010 |
20110087052 | Process for the manufacture of alkenones - Process for preparing an alkenone, which comprises (a) reacting a carboxylic acid halide with a vinyl ether by introducing vinyl ether into a liquid reaction medium containing carboxylic acid halide to form a halogenated precursor of the alkenone and (b) eliminating hydrogen halide from said precursor to form the alkenone. | 04-14-2011 |
20110178297 | Process for the synthesis of halogenated cyclic compounds - A process for the manufacture of a cyclic compound of formula (I) | 07-21-2011 |
20110297883 | Compositions of esters of fluorosubstituted alcanoic acids - Composition of esters of fluorosubstituted alcanoic acids, comprising or consisting essentially of a compound of a formula selected from the group consisting of:
| 12-08-2011 |
20120101305 | Process For The Manufacture Of Halogenated Precursors Of Alkenones Under Specific Conditions - A process for preparing a halogenated precursor of an alkenone, which comprises reacting a carboxylic acid halide with a vinyl ether in a liquid reaction medium under turbulent conditions and a process for preparing an alkenone, by eliminating hydrogen halide from said precursor to form the alkenone. | 04-26-2012 |
20120116127 | Process for the manufacture of alkenones - Process for preparing an alkenone, which comprises the following steps: (a) providing a halogenated precursor of the alkenone; and (b) eliminating the hydrogen halide from said precursor to form the alkenone by a thermolysis treatment selected from the group consisting of flash thermolysis, vacuum thermolysis, and thermolysis under stripping with inert gas. | 05-10-2012 |
20120116128 | Process For The Manufacture Of Halogenated Precursors Of Alkenones In The Presence Of A Solvent - A process for preparing a halogenated precursor of an alkenone, which comprises reacting a carboxylic acid halide with a vinyl ether in a liquid reaction medium comprising an alkenone or a halogenated precursor of the alkenone, and a process for preparing an alkenone, which comprises (a) reacting a carboxylic acid halide with a vinyl ether by introducing vinyl ether into a liquid reaction medium containing carboxylic acid halide to form a halogenated precursor of the alkenone and (b) eliminating hydrogen halide from said precursor to form the alkenone. | 05-10-2012 |
20130237710 | Process for the synthesis of halogenated cyclic compounds - A process for the manufacture of a cyclic compound of formula (I) | 09-12-2013 |
20140051892 | Process for chemical synthesis from an alkenone made from a halogenated precursor - Process for synthesizing a chemical, in particular an agriculturally or pharmaceutically active compound, including: a first step comprising reacting a carboxylic acid halide with a vinyl ether to prepare a halogenated precursor of an alkenone; a second step comprising eliminating hydrogen halide from such precursor to form an alkenone, preferably by thermolysis under specific conditions; and a third step which uses the formed alkenone as a building block to synthesize the chemical. First step may be done in a liquid reaction medium comprising an alkenone or a halogenated alkenone precursor, or in a liquid reaction medium in turbulent state, specifically by creation of gas bubbles of the carboxylic acid halide herein. Second step may include a flash thermolysis, vacuum thermolysis, thermolysis under stripping with inert gas, and/or a thermolysis at a temperature from >90° C. to 120° C. Third step preferably comprises reacting the alkenone with a nitrogen-containing compound. | 02-20-2014 |