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What is the chemical property of this product '2,3-difluoro-4-iodobenzaldehyde '?
2,3-Diene-4-cyanoacetoacetate ethyl ester has unique and delicate chemical properties.
Looking at its structure, it contains many functional groups such as alkenyl, cyanyl and ester groups. The alkenyl group is unsaturated and can participate in the addition reaction. Just like a flood dragon entering water, the alkenyl group encounters electrophilic reagents, such as hydrogen halide, halogen, etc., and the double bond breaks, which is added to it, just like a flood dragon absorbing foreign substances and adding new structures. This addition reaction follows the Markov rule or the anti-Markov rule, depending on the reaction conditions and the characteristics of the reagent.
Cyanyl is also not an idle generation. It has strong electron absorption, which can affect the distribution of electron clouds in molecules, and then affect the reactivity. Under suitable conditions, cyanyl groups can be hydrolyzed into carboxylic groups, just like breaking a cocoon into a butterfly. The structure changes and the properties also change. From nitriles to carboxylic acids, it can participate in many carboxylic acid reactions, such as esterification and salt formation.
Ester groups also have their own characteristics. Under the catalysis of acids or bases, hydrolysis reactions can occur. When acidic hydrolysis, alcohols and carboxylic acids are formed; when alkaline hydrolysis, alcohols and carboxylic salts are obtained. This hydrolysis reaction is like butanolysis of cattle. The ester group is disassembled into different parts, each in its place, and participates in different subsequent chemical processes.
And the functional groups interact with each other, not in isolation. The alkenyl group is affected by the cyanyl group and the ester group, and its electron cloud density changes, and the addition reaction activity and selectivity also change; the cyanyl group and the ester group also interact with each other due to the spatial position and electronic effect, affecting the chemical behavior of the whole molecule.
All these constitute the rich and unique chemical properties of 2,3-diene-4-cyanoacetoacetoethyl acetate. In the field of organic synthesis, such as bright stars, it guides many reaction paths and creates a variety of organic compounds.
What are the main uses of '2,3-difluoro-4-iodobenzaldehyde '?
"2, 3 - Erjiang - 4 -
In the way of eating, this"
"can be used in the cuisine. The taste of
, or has a unique and fresh atmosphere, goes with
, or can cook a delicacy with a unique flavor. The meat of
is fresh and tender, and the fragrance of
is fused with it, which blooms a different taste between the taste buds, or can become a unique delicacy for people to taste and enjoy.
In terms of medicinal health, it may also play a role.
From the perspective of craftsmanship, it may have unique uses.
The shape and texture of
can be carved and processed by skilled craftsmen to make exquisite utensils.
The scales, bones, etc. of
From the perspective of craftsmanship, it may also become a unique material in special craftsmanship, which can be carefully designed and turned
In addition, in sacrifice or some special ceremonial occasions, "2,3-Erjiang-4-Anguilla" may be regarded as an item of special significance. It is used to worship gods and ancestors, to show piety and respect, to carry people's prayers for well-being and peace, and occupies a place in traditional ritual culture, maintaining the link between cultural heritage and spiritual belief.
What are the synthesis methods of '2,3-difluoro-4-iodobenzaldehyde '?
There are three ways to combine "2, 3 - Erchuan - 4 - Jianchi Dace", all of which are recorded below.
One is to find the banks of Lingchuan. The land of Erchuan, where the spiritual energy is dense, or where the Jianchi Dace is hidden. At the beginning of the morning light, where the river water gurgles, waiting for the opportunity. Holding a special net, its silk is tough and thin, hidden among the aquatic plants. When the dace swims close, it moves quietly, covering it with the momentum of Xunlei. This fish is sensitive, and it can escape when there is a slight disturbance, so it needs to be careful, hold your breath and focus, in order to get it.
Second, use spiritual objects as bait. This insect is red in color and was born in the gloomy and damp land of Linggu. I found this insect, put it on a special hook, and hang down in the deep pool of Erchuan. The pool is deep, and the dace often lives here. The bait enters the water and waits for the fish to bite the hook. Don't be impatient in the meantime, you need to be patient and observe the subtle changes in the water surface. Wait for the fish to bite the hook, and take advantage of the situation to lift the rod, but don't use too much force to prevent the fish from decoupling.
Third, borrow the power of the sky. Every night when the moon is full, the water of Erchuan glows with a strange light, and Jian Chijia will swim to the shallows at this time. Take advantage of this opportunity to set up a formation by the beach. The formation is based on the principle of five elements, which attracts the spiritual energy of heaven and earth to gather. When setting up a formation, you need to be familiar with the five elements and accurate in your orientation to form a formation and trap this fish.
These three methods have their own difficulties, but where there is a will, everything can be done. If you are sincere and have perseverance, you may be able to get "2, 3 - Erchuan - 4 - Jianjia".
What is the price range of '2,3-difluoro-4-iodobenzaldehyde 'in the market?
The price range of this item in the city is according to the "Tiangong Kaiwu". Although the price of this "2,3-Erjiang-4-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat" is not detailed, it can be deduced from other items. The price of various things in the world varies according to quality, quantity, place, and time.
If this "2,3-Erjiang-4-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat-Wat" is of fine texture and rare output, its price will be high in prosperous places and when demand is strong. Such as rare materials, craftsmen skillfully made, decorated with beautiful jade, with good work, the price may range from a few gold or even tens of gold.
On the contrary, if the texture is ordinary and the output is quite abundant, in remote places and when the demand is low, the price may only be a few dollars. Because merchants trade, weighing the pros and cons, things are rare and expensive, and supply and demand are combined, the price is achieved. However, the actual price is difficult to determine. Only by carefully examining the quality and quantity of this thing, the place where it is located, and the supply and demand of the city can we obtain its approximate price range.
What are the manufacturers of '2,3-difluoro-4-iodobenzaldehyde '?
There are many manufacturers related to "2,3-Ertan-4-Luzhou Bay Catfish", but it is not easy to describe them all. Due to the passage of time, many old traces are hard to find, and the industries at that time were mostly scattered in the countryside and the market, and detailed records were lacking.
Kao Ertan is the water conservancy hub of Shu, and the surrounding water environment is unique, nourishing many fisheries. However, regarding the production of "2,3-Ertan-4-Luzhou Bay catfish" here, although there is no exact literature to identify a certain household, it is likely that at that time, fishermen used boats as their homes and fished in the waters of Ertan with nets. The catfish they caught were either sold in market fish shops or transferred to other places through fishmongers.
As for Luzhou Bay, it is located in the Jianghan Plain, with wide and deep rivers, and it is also a habitat for catfish. In the past, local fishermen made a living by fishing for generations, and "Luzhou Bay catfish" was famous for a long time. Or some fishermen were skilled in breeding and catching this catfish. It is difficult to study its specific production home. There may be rich households hiring workers to operate fish ponds, specializing in catfish farming, but the historical data are not detailed, and it is difficult to test the fact.
Although it is difficult to find the name of the specific manufacturer, you can imagine the busy scene of fishermen in Zeguo, a water town at that time, whose output was "2,3-Ertan-4-Luzhou Bay catfish", which added color to the table of the common people and also added luster to the fishing economy at that time.
