- Synthesis method of 1,9-diaminononane
-
The invention relates to a synthesis method of 1,9-diaminononane. The synthesis method comprises the following steps: 1) in the presence of an acid catalyst or an alkali catalyst, carrying out a condensation reaction on 1,5-glutaraldehyde with cyanoacetic acid or cyanoacetate to generate an intermediate A; 2) in the presence of no catalyst or in the presence of an inorganic base catalyst or an organic amine catalyst, directly carrying out a decarboxylation reaction on the intermediate A, or carrying out a decarboxylation reaction after hydrolysis to obtain an intermediate B; and 3) in the presence of a hydrogenation reduction catalyst, carrying out a hydrogenation reaction on the intermediate B to generate the final product 1,9-diaminononane.
- -
-
Paragraph 0048; 0052; 0050; 0051; 0054; 0055
(2019/03/26)
-
- High-carbon alkane diamine, and preparation method and application thereof
-
The invention relates to the field of high-carbon alkane diamine preparation, and discloses high-carbon alkane diamine, and a preparation method and application thereof. The preparation method of thehigh-carbon alkane diamine disclosed by the invention is characterized in that the structure of the high-carbon alkane diamine is as shown in the formula NH2-(CH2)m-NH2; the method comprises the following steps: (1) under amideation reaction conditions, reacting high-carbon alkane diacid which is as shown in the formula COOH-(CH2)n-COOH with an ammonia-containing compound to obtain high-carbon chain diamide which is as shown in the formula CONH2-(CH2)n-CONH2; (2) under an alkaline condition, enabling the high-carbon chain diamide which is as shown in the formula CONH2-(CH2)n-CONH2 to perform rearrangement degradation in the existence of water, sodium hypochlorite and/or sodium hypobromite to obtain the high-carbon alkane diamine which is as shown in the formula NH2-(CH2)m-NH2, wherein n=11to 15, and m=9 to 13. The method provided by the invention is a safe, convenient, simple and feasible preparation method for the high-carbon alkane diamine.
- -
-
Paragraph 0058; 0062-0065; 0069-0071; 0075-0076; 0083-0089
(2019/03/28)
-
- Synthetic method of 1,9-diaminononane
-
The invention provides a synthetic method of 1,9-diaminononane. The method comprises the following steps: firstly, carrying out condensation reaction on undecanoic acid and transforming the undecanoicacid into a derivative of the undecanoic acid; then carrying out ammoniation to generate undecendiamide, and then carrying out Hofmann rearrangement reaction to generate a target product 1,9-diaminononane. The method disclosed by the invention has the advantages that raw materials are inexpensive and easily obtained and have a sufficient supply, and high-temperature and high-pressure reaction conditions are not involved, and a production process has more security. Compared with an abroad production technology, the synthetic method disclosed by the invention has the advantages of less side reaction, high purity of the product, less reaction steps and low requirement on equipment. Compared with a production process reported by domestic companies, the synthetic method has the advantages of less three wastes, and meanwhile, hydrogenation reaction is not involved, and the synthetic method has higher reaction security.
- -
-
Paragraph 0056; 0062; 0063-0065
(2018/11/22)
-
- A new kind of acetylcholine esterase inhibitors and its preparation method and application (by machine translation)
-
The present invention provides a novel acetyl choline esterase inhibitor and its preparation method and application, in particular, the invention discloses a formula A shown with double AChE binding site of substituted acridine compound, and its preparation method and as acetylcholinesterase inhibitors. The preparation of the novel compounds of this invention demonstrate good inhibit acetylcholine esterase role, can be used as a preparation for treating and preventing HAMER (AD) application value. (by machine translation)
- -
-
Paragraph 0100; 0101
(2018/04/03)
-
- METHOD FOR PRODUCING ALKANOL AMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION
-
PROBLEM TO BE SOLVED: To provide a method for producing alkanol amines by alcohol amination of diols using ammonia under elimination of water. SOLUTION: The invention relates to a method for producing alkanol amines which comprise a primary amino group (-NH2) and a hydroxyl group (-OH), by alcohol amination of diols comprising two hydroxyl groups (-OH) using ammonia under elimination of water. The reaction is homogeneously catalyzed in the presence of at least one complex catalyst which contains at least one element selected from groups 8, 9 and 10 of the periodic table and at least one donor ligand. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPO&INPIT
- -
-
Paragraph 0088; 0103
(2016/10/27)
-
- The preparation obtained by homogeneous catalysis mellow amination method of the primary amine
-
The invention relates to a method for producing primary amines comprising at least one functional group of formula (-CH2-NH2), by alcohol amination of educts which comprise at least one functional group of formula (-CH2-OH), using ammonia, and elimination of water. The homogeneously catalyzed alcohol amination is carried out in the presence of at least one complex catalyst which contains at least one element selected from the groups 8 and 9 of the periodic table and at least one phosphorus donor ligand of general formula (I).
- -
-
Paragraph 0207-0208; 0214
(2017/02/28)
-
- · Uniform catalyst by using alcohol aminosilicone di-, tri-and a method of manufacturing a polyphenylenepolyamine
-
The invention relates to a method for producing primary amines, which contain at least one functional group of the formula (-CH2-NH2) and at least one further primary amino group, by the alcohol amination of reactants, which contain at least one functional group of the formula (-CH2-OH) and at least one further functional group (-X), wherein (-X) is selected from hydroxyl groups and primary amino groups, using ammonia with removal of water, wherein the reaction is carried out in a homogeneously catalyzed manner in the presence of at least one complex catalyst containing at least one element selected from groups 8, 9 and 10 of the periodic table and at least one donor ligand.
- -
-
Paragraph 0099; 0113
(2016/10/09)
-
- PROCESS FOR PREPARING DI-, TRI- AND POLYAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION
-
Process for preparing primary amines which have at least one functional group of the formula (—CH2—NH2) and at least one further primary amino group by alcohol amination of starting materials having at least one functional group of the formula (—CH2—OH) and at least one further functional group (—X), where (—X) is selected from among hydroxyl groups and primary amino groups, by means of ammonia with elimination of water, wherein the reaction is carried out homogeneously catalyzed in the presence of at least one complex catalyst comprising at least one element selected from groups 8, 9 and 10 of the Periodic Table and also at least one donor ligand.
- -
-
Page/Page column 12; 16
(2012/09/22)
-
- PROCESS FOR PREPARING ALKANOLAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION
-
Process for preparing alkanolamines which have a primary amino group (—NH2) and a hydroxyl group (—OH) by alcohol amination of diols having two hydroxyl groups (—OH) by means of ammonia with elimination of water, wherein the reaction is carried out homogeneously catalyzed in the presence of at least one complex catalyst comprising at least one element selected from groups 8, 9 and 10 of the Periodic Table and also at least one donor ligand.
- -
-
Page/Page column 13-14; 20
(2012/09/22)
-
- PROCESS FOR THE PREPARATION OF PRIMARY AMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION
-
Process for the preparation of primary amines which have at least one functional group of the formula (—CH2—NH2) by alcohol amination of starting materials which have at least one functional group of the formula (—CH2—OH), with ammonia, with the elimination of water, where the alcohol amination is carried out under homogeneous catalysis in the presence of at least one complex catalyst which comprises at least one element selected from groups 8 and 9 of the Periodic Table of the Elements, and also at least one phosphorus donor ligand of the general formula (I).
- -
-
Page/Page column 10; 13
(2012/09/22)
-
- METHOD FOR THE SYNTHESIS OF HIGH PURITY PRIMARY DIAMINES AND/OR TRIAMINES
-
The present invention relates to a process for the preparation of primary di- and/or triamines of high purity from nitriles which can themselves originate from dimer and/or trimer acids. This process comprises a stage of ammoniation of the acid functional groups and a stage of hydrogenation of the nitrile functional groups to give primary amine functional groups and does not require additional purification stage(s).
- -
-
Page/Page column 5
(2011/08/08)
-
- Functionalized Photoreactive Compounds
-
The present invention concerns functionalized photoreactive compounds of formula (I), that are particularly useful in materials for the alignment of liquid crystals. Due to the adjunction of an electron withdrawing group to specific molecular systems bearing an unsaturation directly attached to two unsaturated ring systems, exceptionally high photosensitivities, excellent alignment properties as well as good mechanical robustness could be achieved in materials comprising said functionalized photoreactive compounds of the invention.
- -
-
-
- Process for the dyeing of leather with anionic dyes and polyaminoamide resin as dyeing auxiliary
-
To improve the affinity of anionic dyestuffs in the dyeing of leather materials, polycondensation products consisting of at least one amine of the formula STR1 in which the radicals have the meanings mentioned in the description with one dicarboxylic acid and, if desired, ω-aminocarboxylic acid or its lactam are highly suitable.
- -
-
-
- Silicone containing bis-thioether aromatic amines
-
A silicone containing bis-thioether aromatic amine has a chemical structure wherein an aromatic nucleus at each end of the chemical radical is chemically bonded to the remainder of the chemical radical by either sulfur, sulfoxide or sulfone.
- -
-
-