Unlock instant, AI-driven research and patent intelligence for your innovation.

Carbonyl tetraamine compound and preparation method thereof

A technology of tetramide and compound, applied in the field of tetramide compound and preparation thereof, and can solve problems such as undisclosed synthesis method of tetramide

Active Publication Date: 2012-03-14
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the carbonamide synthesized by the prior art is limited to carbonamide, and the synthetic method of carbonamide has not been disclosed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbonyl tetraamine compound and preparation method thereof
  • Carbonyl tetraamine compound and preparation method thereof
  • Carbonyl tetraamine compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First mix toluene and 29.58 grams of MDI and heat to 50°C, slowly add 3.56 grams of diamine, heat up to 80°C, and react for 30 minutes, mix toluene and 31.87 grams of octadecylamine and heat to 60°C, add to the above mixture, and heat up to 80°C, react for 30 minutes, wash, filter, and dry.

[0029] Reaction formula:

[0030]

[0031] In the formula, R 1 for CH 3 (CH 2 ) 17 , R 2 for -(CH 2 ) 2 -, R 3 for

[0032] figure 1 For the infrared analysis spectrogram of the carbonamide prepared in embodiment 1. As can be seen from the figure, 3310 ~ 3323cm -1 The peak at is the stretching vibration absorption peak of -NH- in the urea molecule, 1630cm -1 The peak at is the vibrational absorption peak of -CO- in the urea molecule. This indicates that a preparative reaction has occurred.

[0033] figure 2 It is the NMR analysis spectrum of carboxytetramide. In order to confirm the correctness of the infrared analysis results, nuclear magnetic resonance (NMR)...

Embodiment 2

[0036] First mix toluene and 16.76 grams of TDI and heat to 40°C, slowly add 3.93 grams of propylenediamine, heat up to 70°C, and react for 30 minutes, mix toluene and 39.31 grams of dodecylamine and heat to 50°C, add to the above mixture, Raise the temperature to 70°C, react for 30 minutes, wash, filter and dry.

Embodiment 3

[0038] First mix toluene and 25.04 g of HDI and heat to 45°C, slowly add 16.10 g of phenylenediamine, heat up to 75°C, and react for 30 minutes, mix toluene and 13.87 g of aniline and heat to 55°C, add to the above mixture, and heat up to React at 75°C for 30 minutes, wash, filter, and dry.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a carbonyl tetraamine compound and a preparation method thereof. The carbonyl tetraamine compound has a structure; R1 is alkyl, cycloalkyl or aryl, wherein the carbon number of the alkyl or cycloalkyl is 8 to 24, and the aryl is phenyl or substituted phenyl; R2 is alkylidene or arylidene, wherein the carbon number of the alkylidene is 2 to 12, and the arylidene is phenylene or biphenylene; and R3 is arylidene, alkylidene or cyclohexylidene, of which the carbon number is 6 to 30. The preparation method for the carbonyl tetraamine compound, which is provided by the invention, includes the following steps: diamine is slowly added into the organic solution of diisocyanate, the temperature is increased to 60 DEG C to 100 DEG C for reaction, monoamine is added, and reaction is carried out under 60 DEG C to 100 DEG C. The carbonyl tetraamine compound synthesized by the invention can be widely applied in agriculture, pharmaceuticals, explosive, tanning, flotation agents, pigments, petroleum products and other aspects.

Description

technical field [0001] The invention relates to a carbonamide compound and a preparation method thereof. Background technique [0002] Carbonamide, whose molecular formula contains the following structure: -NH-CO-NH-. Carboxamide was the first pure organic compound extracted from human excrement (1773), and also the first organic compound to be artificially synthesized in a laboratory (1828). Its molecular formula is H 2 N-CO-NH 2 , with a molecular weight of 60.06, also known as urea or carbonamide, commonly known as urea. Carboxamides are very weakly basic and can react with strong acids to form salts, but cannot be tested with litmus paper. Carbonamide can be hydrolyzed in the presence of acid, alkali or urease. Plants and many microorganisms can produce urease, and the carbonamide applied to the soil is absorbed by plants after being hydrolyzed in the presence of this enzyme. [0003] Carbonamide is the nitrogen fertilizer with the highest nitrogen content and is m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07C275/40C07C273/18
Inventor 刘磊孙洪伟何懿峰段庆华
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com