4-(Trifluoromethyl)pyridine-2-carbaldehyde

Sanxiang methyl ester has two uses. The first is for the medical way. The ancient healer, to observe the nature of all medicines, to explore the way to treat diseases. Sanxiang methyl ester can be used in medicine to make ointment pill powder to treat all kinds of diseases. It can reconcile the medicinal properties, make the medicinal power help each other, reach the sick place, or relieve pain urgently, or reduce swelling and blood stasis, or remove phlegm and cough, in the way of doctors to treat diseases and save people, great merit.
Both can be used as an adjunct to alchemy. The art of alchemy, the ancient alchemist seeks longevity and the way to refine spiritual medicines. Sanxiang methyl ester is in the pill furnace, which can help the combination of various medicines, adjust its heat, and regulate yin and yang. Although many people say that alchemy for longevity is a false thing, Sanxiang Methyl Ester was also indispensable in the alchemy process at that time. Or to make the quality of the pill better, or to increase its stability, it also has its unique use in alchemy.
From this perspective, Sanxiang Methyl Ester has its own uses in both medicine and alchemy, and was valued by ancient physicians and alchemists.

To prepare tetra- (triethylmethyl) -2 -ethylhexene, the method is as follows:
First, the method of condensation with aldol and ketone. First, take the appropriate aldol and ketone, and carry out the condensation reaction under the action of basic catalyst. Among aldol and ketone, the activity of carbonyl is different, and the activity is suitable, so that the reaction can proceed in the expected direction. If aldol and ketone with appropriate substituents are used as raw materials, when catalyzed by basic reagents such as sodium alcohol, the α-hydrogen of aldol can undergo nucleophilic addition with the carbonyl of ketone, and then dehydrate to form alkenes. In this process, it is necessary to fine-tune the reaction temperature and catalyst dosage. If the temperature is too high, it is easy to cause more side reactions; if there is too little catalyst, the reaction rate is slow, and it is difficult to achieve the expected yield.
Second, the method of olefin metathesis reaction is used. Choose a suitable olefin substrate and match it with a specific metal catalyst, such as a catalyst containing ruthenium. The structure of the olefin substrate has a great influence on the reaction, and its substituents need to be carefully designed. During the reaction, the olefin double bond breaks and recombines under the action of the catalyst, and the carbon-carbon double bond structure of the target product is cleverly constructed. The conditions of this method are relatively mild, but the catalyst is expensive, and the reaction system needs to be strictly anhydrous
Third, the elimination reaction of halogenated hydrocarbons. First, a halogenated hydrocarbon containing an appropriate halogen atom is prepared, and then treated with a strong base. The choice of halogenated hydrocarbons should consider the activity of the halogen atom and the structure of the hydrocarbon group. For example, taking a tertiary halogenated hydrocarbon as an example, it reacts with a strong base such as sodium alcohol in an alcohol solution, and the halogen atom and the beta-hydrogen atom are removed in the form of hydrogen halide to form a carbon-carbon double bond. This process requires attention to the strength and dosage of the base. Excessive base strength may lead to other elimination or substitution side reactions. < Br >
The above methods have advantages and disadvantages. In actual preparation, many factors such as the availability of raw materials, cost, reaction conditions and yield should be comprehensively considered, and the optimal method should be selected to produce tetra- (triethylmethyl) -2 -ethylhexene.

What are the physical properties of (Sanxiang methyl) alkyne-2-A whale? This is a question related to the exploration of strange substances.
(Sanxiang methyl) alkyne-2-A whale, this extraordinary substance is also. Its color is dark blue, just like the color of the night in the deep sea, and the shimmering light flows, as if it contains mysterious power. The texture is smooth, but it has a hint of coolness when touched, like water in a cold pool, penetrating the heart.
Looking at its shape, it is translucent under normal circumstances, and can change with the shape of the container, which is quite agile. In case of external pressure, it can harden instantly, as solid as a rock, resisting strong impact.
Its density is different from that of ordinary things, and it is heavier than water. When placed in water, it is like a stone sinking into an abyss and sinks directly. And it has excellent insulation, can isolate electricity and prevent fire, and is like a natural barrier, which can protect the surroundings from electric fire.
Furthermore, this substance will emit a strange aroma in a specific temperature range. It is fragrant and rich, and the smell is refreshing and refreshing. However, the temperature changes slightly, and the aroma dissipates instantaneously, leaving no trace.
Its chemical activity is also found, and it is quite stable in common chemical reagents, making it difficult to react with various substances. But when it comes to strong oxidizing substances, it can burst out with amazing energy and release brilliant light, just like a shooting star in the sky, dazzling and shocking. Such physical properties make it potentially useful in many fields, or a key element in future creation.

(Sanxiang methyl) alkyne-2-formonitrile, its chemical properties are as follows:
This compound has a certain reactivity. Because of its alkynyl group, the carbon-carbon triple bond in the alkynyl group is electron-rich and prone to addition reactions. For example, it can be electrophilic addition with halogen elementals, such as chlorine, bromine, etc. Under appropriate conditions, a molecule (Sanxiang methyl) alkyne-2-formonitrile can be added to a molecule of bromine to form an unsaturated compound containing bromine. During this process, the bromine molecule is attracted by the electron cloud of alkynyl groups, and isocleaved into positive bromide ions and negative bromide ions. The positive bromide ion is first added to the alkynyl group to form a carbon positive ion intermediate, and then the negative bromide ion attacks the carbon positive ion to obtain an addition product.
Furthermore, its cyanyl group also has characteristics. Cyanyl groups can undergo hydrolysis reactions under acidic or alkaline conditions. In acidic media, cyano groups are gradually hydrolyzed to form amides, and then further hydrolyzed to carboxylic acids. With dilute sulfuric acid as catalyst, the cyanohydrolysis of (Sanxiang methyl) alkyne-2-formonitrile under heating conditions, through the intermediate product (Sanxiang methyl) alkyne-2-formamide, is finally converted into (Sanxiang methyl) alkyne-2-formonitrile.
At the same time, due to the interaction of different groups in the molecule, the existence of alkynyl groups and cyanyl groups also changes the activity of each other. The electron cloud density of alkynyl groups decreases due to the electron-withdrawing of cyanyl groups, resulting in a slight change in the addition reaction activity; and the activity of cyanyl groups in hydrolysis and other reactions may be different from that of simple fatty nitriles due to the presence of alkynyl groups. And because the compound as a whole contains alkynyl and cyanyl groups, it has a certain polarity, and its solubility in organic solvents is different from that of non-polar compounds. It can have better solubility in some polar organic solvents. This property also affects the reaction environment and separation and purification operations it participates in.

In today's market, the prices of Sanxiang methyl ester and acetonitrile have changed and cannot be generalized.
For Sanxiang methyl ester, its price is related to many ends. From the supply of raw materials, if the raw material is abundant and sufficient, its price may be stable, and even drop; if the raw material is rare and difficult to harvest, its price will increase. It is also related to the needs of the market. The industry is prosperous and widely used. If there are many people who want it, the price will be high; if the industry is tired and there is little use, and if there is little demand, the price will be low. Moreover, the guidance of the husband's policy and the progress of technology are all involved. Or because of the issuance of new policies, the production and use are regulated, and the price will be changed; or because of the new technology and the production increase, the price will be reduced and the price will be changed.
As for acetonitrile, the same principle is followed. It is widely used in the chemical and pharmaceutical industries. If the supply exceeds the demand, the price will fall; if the demand exceeds the supply, the price will rise. The difficulty of its production and the amount of consumption are all variables in the price. And the economic trend of the world and the situation of trade also have an impact. If the economy is prosperous and prosperous, those who need acetonitrile will proliferate, and the price will rise; if the economy is weak and the industry is declining, those who need it will decrease, and the price will decline. Between trade, changes in tariffs and restrictions can cause fluctuations in prices.
Therefore, if you want to know the market price of the two, you must check the situation of raw materials, the state of demand and supply, the direction of policies, technological changes, and the overall situation of economic and trade. Only by analyzing them can you obtain a more accurate price.