Abstract:
Provided herein is a use of a high-boiling solvent in a mixture comprising a (thio)phosphoric acid derivative and a process including the addition of a high-boiling solvent to a mixture comprising a (thio)phosphoric acid derivative to recover the (thio)phosphoric acid from the mixture by an evaporation process.
Abstract:
The present invention relates to a process for preparing 4-chlorobenzyl propargylether comprising a step (a) of reacting 4-chlorobenzyl chloride with propargyl alcohol in the presence of a base and a phase transfer catalyst, wherein the reaction mixture comprises at least two phases, wherein one phase is an organic phase and one phase is an aqueous phase.
Abstract:
The present invention relates to a process for manufacturing 4-propargylated amino-benzoxazinones of formula (I), comprising the following steps: step a) preparing propargyl chloride by reacting propargyl alcohol with thionyl chloride optionally in the presence of a catalyst; and step b) reacting the propargyl chloride prepared in step (a) with a NH-benzoxazinone of formula (II); wherein the variables are defined according to the description.
Abstract:
Provided herein is a process for isolating at least one (thio)phosphoric acid derivative, which has a boiling point of at least 70° C., from a product mixture including the at least one (thio)phosphoric acid derivative, at least one salt selected from ammonium salts and alkali metal chlorides, at least one polar solvent selected from the group consisting of ester solvents and ether solvents, and optionally at least one HCl scavenger; wherein the process is based on first dissolving the (thio)phosphoric acid derivative to be able to remove the at least one salt, and then causing solids formation of the (thio)phosphoric acid derivative.
Abstract:
Provided herein is a use of a high-boiling solvent in a mixture comprising a (thio)phosphoric acid derivative and a process including the addition of a high-boiling solvent to a mixture comprising a (thio)phosphoric acid derivative to recover the (thio)phosphoric acid from the mixture by an evaporation process.
Abstract:
The present invention relates to a process for preparing 4-chlorobenzyl propargylether comprising a step (a) of reacting 4-chlorobenzyl chloride with propargyl alcohol in the presence of a base and a phase transfer catalyst, wherein the reaction mixture comprises at least two phases, wherein one phase is an organic phase and one phase is an aqueous phase.
Abstract:
Provided herein is a process for isolating at least one (thio)phosphoric acid derivative, which has a boiling point of at least 70° C., from a product mixture including the at least one (thio)phosphoric acid derivative, at least one salt selected from ammonium salts and alkali metal chlorides, at least one polar solvent selected from the group consisting of ester solvents and ether solvents, and optionally at least one HCl scavenger; wherein the process is based on first dissolving the (thio)phosphoric acid derivative to be able to remove the at least one salt, and then causing solids formation of the (thio)phosphoric acid derivative.