C07D301/16

EPOXIDE WITH LOW TOTAL CHLORINE CONTENT AND NO HEAVY METAL RESIDUES AND PREPARATION METHOD THEREOF
20220363653 · 2022-11-17 ·

The present disclosure relates to the field of epoxide resin, and more particularly to an epoxide with a low total chlorine content and no heavy metal residues, and a preparation method thereof. Disclosed is an epoxide prepared from raw materials including an unsaturated cycloaliphatic compound containing a double bond, hydrogen peroxide, an organic acid compound, a solvent and an alkaline salt; wherein a molar ratio of the organic acid compound to the unsaturated cycloaliphatic compound containing a double bond is (1-1.5):1. The obtained epoxides obtained in the present disclosure have a high purity, a high yield, a low solvent content, low chroma, and a low chlorine and metal ion content; the reaction system is simple, environmentally friendly, safe and controllable, and the production cost is low, which can meet the technical and economic requirements and are suitable for large-scale industrial production.

EPOXIDE WITH LOW TOTAL CHLORINE CONTENT AND NO HEAVY METAL RESIDUES AND PREPARATION METHOD THEREOF
20220363653 · 2022-11-17 ·

The present disclosure relates to the field of epoxide resin, and more particularly to an epoxide with a low total chlorine content and no heavy metal residues, and a preparation method thereof. Disclosed is an epoxide prepared from raw materials including an unsaturated cycloaliphatic compound containing a double bond, hydrogen peroxide, an organic acid compound, a solvent and an alkaline salt; wherein a molar ratio of the organic acid compound to the unsaturated cycloaliphatic compound containing a double bond is (1-1.5):1. The obtained epoxides obtained in the present disclosure have a high purity, a high yield, a low solvent content, low chroma, and a low chlorine and metal ion content; the reaction system is simple, environmentally friendly, safe and controllable, and the production cost is low, which can meet the technical and economic requirements and are suitable for large-scale industrial production.

METHOD FOR PRODUCING 3-CHLORO-2-HYDROXYPROPYL (METH)ACRYLATE AND METHOD FOR PRODUCING GLYCIDYL (METH)ACRYLATE
20170305870 · 2017-10-26 · ·

To reduce formation of side products and to enhance a selectivity rate in a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and in a method for producing glycidyl (meth)acrylate.

The present invention is characterized by a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate through a reaction of (meth)acrylic acid and epichlorohydrin; more specifically, the reaction is carried out by using 0.5 to 2 mol of epichlorohydrin relative to 1 mol of (meth)acrylic acid, and by adding epichlorohydrin to (meth)acrylic acid in the presence of a catalyst. Also, the present invention is characterized by a method for producing glycidyl (meth)acrylate through a reaction of 3-chloro-2-hydroxypropyl (meth)acrylate and a basic carbonate compound in a polar solvent.

METHOD FOR PRODUCING 3-CHLORO-2-HYDROXYPROPYL (METH)ACRYLATE AND METHOD FOR PRODUCING GLYCIDYL (METH)ACRYLATE
20170305870 · 2017-10-26 · ·

To reduce formation of side products and to enhance a selectivity rate in a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and in a method for producing glycidyl (meth)acrylate.

The present invention is characterized by a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate through a reaction of (meth)acrylic acid and epichlorohydrin; more specifically, the reaction is carried out by using 0.5 to 2 mol of epichlorohydrin relative to 1 mol of (meth)acrylic acid, and by adding epichlorohydrin to (meth)acrylic acid in the presence of a catalyst. Also, the present invention is characterized by a method for producing glycidyl (meth)acrylate through a reaction of 3-chloro-2-hydroxypropyl (meth)acrylate and a basic carbonate compound in a polar solvent.

Process for the epoxidation of a tetrasubstituted alkene

This invention relates to a process for the epoxidation of a tetrasubstituted alkene such as terpinolene to the corresponding epoxide such as terpinolene epoxide by reacting the tetrasubstituted alkene with performic acid prepared in situ from formic acid and hydrogen peroxide in the presence of at least one buffering agent. Further, the invention relates to the use of an oxidizing agent comprising hydrogen peroxide and formic acid for the in-situ epoxidation of a tetrasubstituted alkene.

Process for the epoxidation of a tetrasubstituted alkene

This invention relates to a process for the epoxidation of a tetrasubstituted alkene such as terpinolene to the corresponding epoxide such as terpinolene epoxide by reacting the tetrasubstituted alkene with performic acid prepared in situ from formic acid and hydrogen peroxide in the presence of at least one buffering agent. Further, the invention relates to the use of an oxidizing agent comprising hydrogen peroxide and formic acid for the in-situ epoxidation of a tetrasubstituted alkene.

PROCESS FOR THE EPOXIDATION OF A TETRASUBSTITUTED ALKENE

This invention relates to a process for the epoxidation of a tetrasubstituted alkene such as terpinolene to the corresponding epoxide such as terpinolene epoxide by reacting the tetrasubstituted alkene with performic acid prepared in situ from formic acid and hydrogen peroxide in the presence of at least one buffering agent. Further, the invention relates to the use of an oxidizing agent comprising hydrogen peroxide and formic acid for the in-situ epoxidation of a tetrasubstituted alkene.

PROCESS FOR THE EPOXIDATION OF A TETRASUBSTITUTED ALKENE

This invention relates to a process for the epoxidation of a tetrasubstituted alkene such as terpinolene to the corresponding epoxide such as terpinolene epoxide by reacting the tetrasubstituted alkene with performic acid prepared in situ from formic acid and hydrogen peroxide in the presence of at least one buffering agent. Further, the invention relates to the use of an oxidizing agent comprising hydrogen peroxide and formic acid for the in-situ epoxidation of a tetrasubstituted alkene.

Process for the epoxidation of a tetrasubstituted alkene

This invention relates to a process for the epoxidation of a tetrasubstituted alkene such as terpinolene to the corresponding epoxide such as terpinolene epoxide by reacting the tetrasubstituted alkene with peracetic acid prepared in situ from acetic anhydride and hydrogen peroxide in the presence of at least one buffering agent. Further, the invention relates to the use of an oxidizing agent comprising hydrogen peroxide and acetic anhydride for the in-situ epoxidation of a tetrasubstituted alkene.

Process for the epoxidation of a tetrasubstituted alkene

This invention relates to a process for the epoxidation of a tetrasubstituted alkene such as terpinolene to the corresponding epoxide such as terpinolene epoxide by reacting the tetrasubstituted alkene with peracetic acid prepared in situ from acetic anhydride and hydrogen peroxide in the presence of at least one buffering agent. Further, the invention relates to the use of an oxidizing agent comprising hydrogen peroxide and acetic anhydride for the in-situ epoxidation of a tetrasubstituted alkene.