2-(Difluorom茅thyl)-4-isobutyl-6-(trifluorom茅thyl)-3,5-pyridinedicarbothioate de S~3~,S~5~-dim茅thyle

I think this is a question about the structure of compounds in organic chemistry. 2 - (diethoxy) - 4 - isopropyl - 6 - (triethoxy) - 3,5 - to its diacid anhydride, and S - 3, S - 5 - dimethyl anhydride, to know its chemical structure.
The structure of the husband organic compound needs to be deduced according to the naming rules. The first view "2 - (diethoxy) ", which is shown in the second position of the main chain connected with diethoxy. "Ethoxy" is formed by connecting ethyl ($C_2H_5 - $) to oxygen ($-O - $), that is, $C_2H_5O - $. There are two connected to the second position of the main chain.
Look at "4-isopropyl" again. The fourth position of the main chain is connected with an isopropyl group. The structure of the isopropyl group is $ (CH_3) _2CH - $.
"6 - (triethoxy) ", and the sixth position of the main chain is connected with three ethoxy groups, that is, 3 dollars\ times C_2H_5O - $.
"3,5 - to its dianhydride", indicating that the 3 and 5 positions of the main chain have structures related to the acid anhydride. The acid anhydride is a structure formed by the dehydration of two carboxyl groups ($-COOH $), which can be expressed as $-CO - O - CO - $.
As for "S-3, S-5-dimethyl anhydride", where "S" is often the configuration of chiral carbon. There is one methyl group ($- CH_3 $) at the 3 and 5 positions of the main chain, and the configuration of this binary carbon is "S" type.
In summary, the structure of this compound, above the main chain, is diethoxy at the second position, isopropyl at the fourth position, triethoxy at the sixth position, acid anhydride at the 3 and 5 positions and one methyl group each, and carbon at the 3 and 5 positions has the "S" configuration. In this way, according to the naming rules, its chemical structure can be roughly deduced.

2 - (diethylamino) - 4 - isopropyl - 6 - (triethylamino) - 3,5 - dianhydride,\ (S\ sim3\ sim\),\ (S\ sim5\ sim\) -dipropyl ether and other substances, in the category of "Tiangong Kaiwu", although not accurately corresponding, but can be discussed from the perspective of related physical properties cognition.
Dipropyl ether, which is a colorless liquid with a typical ether odor. From the perspective of physical properties, its boiling point is about 90.5 ° C. This temperature characteristic makes it vaporized and other changes under a specific temperature. If it is involved in ancient processes, this boiling point difference can be used for separation and purification. Its relative density is about 0.74 (water = 1), which is lighter than water. If it is mixed in a liquid system, it will float on water. The ancients may use this characteristic to use water as a medium for preliminary separation.
Dipropyl ether is slightly soluble in water and can be miscible with most organic solvents. Although this solubility was not known as accurately in ancient times, in practice, if it involves the treatment of dyes, oils and other substances, when it is found that it is insoluble with water but can be mixed with some oily substances, it may try to dissolve specific substances in order to achieve the purpose of extraction and refining. And because of its flammability, it is easy to cause combustion in an environment with a fire source. If used in ancient times, special attention should be paid to fire safety, or its flammability can be used as a fuel aid in specific processes such as heating and drying, but the dosage and environment should be carefully controlled.

To prepare 2 - (diethylamino) - 4 - isobutyl - 6 - (triethylamino) - 3,5 - p-diacid anhydride and S - 3, S - 5 - dimethyl anhydride, the method is as follows:
First take the appropriate raw materials and react in multiple steps. In the reactor, add specific starting materials to control the temperature, pressure and reaction time. In the first step, the reactant containing a specific group undergoes a substitution reaction under the action of the catalyst, and the desired alkyl group is introduced. During the reaction, pay attention to the pH of the reaction system and adjust it in a timely manner to promote the positive progress of the reaction.
After the first step of the reaction is completed, the impurities are removed by separation and purification to obtain a pure intermediate product. Then, this intermediate product reacts with another reactant under another condition to construct the structure of diacid anhydride. In this step, the temperature and reaction time are strictly controlled. High or low temperature, too long or too short time, all affect the yield and purity of the product.
As for the synthesis of S-3, S-5-dimethyl anhydride, carefully designed steps are also required. Starting with suitable chiral raw materials, the desired chiral center is selectively constructed through chiral induction reaction. During the reaction, a chiral catalyst is used to improve the stereoselectivity of the reaction. After multi-step conversion, a series of separation and purification operations, such as distillation, recrystallization, etc., the target product 2 - (diethylamino) - 4 - isobutyl - 6 - (triethylamino) - 3,5 - p-diacid anhydride and S - 3, S - 5 - dimethyl anhydride can be obtained. The whole synthesis process requires fine operation and strict control of various reaction conditions to obtain ideal results.

2-% (diethylamino) -4-isopropyl-6- (triethylamino) -3,5-p-dianhydride, S~ 3~, S~ 5~ -dipropyl ether are used in many fields.
In the field of pharmaceutical chemistry, this compound can act as a key drug synthesis intermediate. Due to its special chemical structure, it can participate in the construction of many complex drug molecules. By modifying and modifying its structure, drugs with specific pharmacological activities, such as antibacterial and anti-inflammatory drugs, can be developed. For example, through a specific chemical reaction, the active group is connected to a specific position of the compound, so that it can act on specific pathogens or inflammatory factors, providing an important basis for the development of new drugs.
In the field of materials science, 2% (diethylamino) -4-isopropyl-6- (triethylamino) -3,5-p-dianhydride, S~ 3~, S~ 5~ -dipropyl ether can be used to prepare high-performance materials. In the synthesis of polymer materials, it can be used as a cross-linking agent or functional monomer. Adding it to the polymerization reaction system can change the structure and properties of polymer materials, improve the mechanical strength, thermal stability and chemical stability of materials. For example, when preparing engineering plastics, appropriate addition of this compound can significantly improve the performance of plastics in harsh environments such as high temperature and high humidity.
In the field of organic synthesis chemistry, this compound is an extremely important reaction reagent. In organic synthesis reactions, it can participate in various reaction types such as nucleophilic substitution and electrophilic addition to help build diverse organic compound structures. With its unique functional group characteristics, it can achieve some organic synthesis transformations that are difficult to achieve by traditional methods, opening up new paths for organic synthesis chemistry research and promoting efficient synthesis of complex organic molecules.

"Tiangong Kaiwu" said: "Fu 2 - (diethoxy) - 4 - isobutyl - 6 - (triethoxy) - 3,5 - dibutyl ester, S~ 3~, S~ 5~ -dibutyl ester The market prospect is related to the chemical industry."
Now look at this 2 - (diethoxy) - 4 - isobutyl - 6 - (triethoxy) - 3,5 - dibutyl ester, and S~ 3~, S~ 5~ -dibutyl ester, in the field of chemical industry, has a wide range of uses. This diacid ester has a specific structure and unique properties, and can be used as a raw material for a variety of reactions. It is used in the organic synthesis industry, or as a key intermediate, and can help to prepare a variety of complex organic compounds. And S~ 3~, S~ 5~ -dibutyl ester, due to its unique physical and chemical properties, can be used as a high-quality additive in coatings, inks and other industries to improve product quality, such as enhancing its adhesion and weather resistance.
In terms of market prospects, with the advance of chemical technology, the demand for fine chemicals in various industries is increasing. This diacid ester and dibutyl ester, with their unique properties, will receive more attention and application. It has broad applications in the research and development of emerging materials, high-end manufacturing and other fields. And as the concept of environmental protection is deeply rooted in the hearts of the people, if an environmentally friendly production process can be developed to meet the requirements of green chemistry, its market potential will be even more limitless. Therefore, the market prospects of these two are quite promising, and they are expected to emerge in the chemical market and become a new driving force for the development of the industry.