5-(1,1-dimethylethyl)-1H-imidazole-4-carboxaldehyde

5- (1,1-dimethylethyl) -1H-pyrazole-4-formonitrile, this compound is an organic compound. Its chemical properties are unique, with certain stability and reactivity.
From the structural point of view, the pyrazole ring is the core, with tert-butyl (1,1-dimethylethyl) attached at the 5 position and formonitrile at the 4 position. The presence of the pyrazole ring endows the compound with certain aromaticity, because its conjugation system can stabilize electrons and affect chemical behavior.
Methonitrile has high reactivity and can participate in many reactions. For example, in hydrolysis reactions, under the catalysis of acids or bases, formonitrile groups can be converted into carboxylic groups to obtain corresponding carboxylic acid derivatives; reduction reactions can also occur to generate amine compounds, which is an important way to introduce amino groups in organic synthesis.
tert-butyl is a large hindrance group, which has a significant impact on the physical and chemical properties of compounds. Due to its hindrance, it can change the spatial configuration of molecules and affect the reaction selectivity. In some nucleophilic or electrophilic substitution reactions, tert-butyl can prevent the reagent from approaching a specific position of the pyrazole ring, making the reaction more inclined to occur where the hindrance is small.
In addition, the compound can be used as a ligand to complex with metal ions due to nitrogen atoms, and may have potential applications in the field of metal-organic chemistry, providing the possibility to construct novel metal complex structures.

To prepare 5- (1,1-dimethylethyl) -1H-indole-4-formaldehyde, the common synthesis methods are as follows:
One is to use indole as the starting material. First, the indole is protected by protecting its nitrogen atom with a suitable group to avoid unnecessary side reactions in the reaction. After that, the corresponding substituent is introduced at the indole 4 position by using halogenated hydrocarbons under basic conditions through nucleophilic substitution reaction. This process requires careful selection of bases and reaction solvents to ensure reaction selectivity. After introducing a suitable substituent at the 4 position, the protective group is removed under suitable conditions, and finally a suitable formylation reagent, such as the Vilsmeier-Haack reagent composed of DMF and POCl, is used to introduce a formyl group at the 4 position of indole. This reagent has high reactivity and can effectively achieve formylation.
Second, the indole ring can be constructed from the benzene ring. First, a suitable substituted benzene is used as the raw material, and a specific substituent is introduced through a series of reactions, such as the Foucault reaction, etc., to construct a benzene ring derivative with a suitable substitution mode. Subsequently, the cyclization reaction of o-amino acetophenone compounds with aldides or ketones under acid catalysis is used to construct the indole ring structure. During the reaction process, the type and amount of acid need to be controlled to optimize the reaction conditions. After constructing the indole ring, formyl groups are introduced at the 4 position by a method similar to the above.
The third is the coupling reaction catalyzed by transition metals. The halogenated indole derivative is used as a substrate, and the borate ester containing (1,1-dimethylethyl) or other nucleophiles, under the action of transition metal catalysts such as palladium catalyst, Suzuki coupling and other reactions occur, and the indole is introduced at a specific position (1,1-dimethylethyl). Then, the formyl group is introduced at the 4 position through a formylation reaction. This method requires precise regulation of catalysts, ligands and reaction conditions to achieve the desired reaction effect.

5- (1,1-dimethylethoxy) -1H-pyrazole-4-formaldehyde, which is used in many fields such as medicine, pesticides, and material science.
In the field of medicine, it is a key intermediate and can be used to synthesize compounds with specific biological activities. For example, when developing new antibacterial drugs, it can be used as a starting material through a series of organic synthesis steps to construct antibacterial active molecules with unique structures, showing inhibitory effects on some drug-resistant bacteria. In the research of anti-tumor drugs, it can also be chemically modified and modified to integrate it into the molecular structure of the drug to play the role of regulating activity and targeting. < Br >
In the field of pesticides, it can be used to create new pesticides. After rational design and synthesis, it can be converted into pesticide ingredients with high insecticidal, bactericidal or herbicidal properties. For example, the design of insecticides for specific pests, by virtue of their special structure and specific combination with the target check point in the pest body, interfere with the physiological metabolism of pests, achieve the purpose of insecticides, and are environmentally friendly and have low residue.
In the field of materials science, it can be used as an important raw material for the synthesis of functional materials. In the synthesis of optoelectronic materials, this structural unit is introduced to endow the material with unique optoelectronic properties, such as improving the material's fluorescence emission characteristics, enhancing charge transfer efficiency, etc., which has potential application value in the fields of organic Light Emitting Diode (OLED), solar cells, etc. In the synthesis of polymer materials, it participates in polymerization reactions and changes the physical and chemical properties of the material, such as improving the material's thermal stability and mechanical strength.

5- (1,1-dimethylethyl) -1H-pyrazole-4-formonitrile. The market price of this compound varies greatly due to factors such as application scenarios, purity, and market supply and demand.
In the field of scientific research reagents, if the demand is for a small amount of high-purity products, the price may not be low due to high R & D investment and purification costs. Assuming that the purity is above 98%, the price of small packages (such as 5 grams) may be in the hundreds of yuan. This is due to the strict requirements of scientific research on purity, and the production process requires fine control and multiple purification processes, resulting in increased costs.
In the chemical raw material market, if a large number of purchases are used for industrial synthesis, etc., the price varies according to supply, demand, and output. When the market supply is sufficient, and the purity requirements of industrial grade are relatively loose (such as 90% - 95%), bulk purchase (such as kilogram grade), the price per kilogram may be controlled at several thousand yuan. However, in case of scarcity of raw materials, limited production, etc., the price may rise sharply.
However, the exact price still needs to refer to the specific supplier's quotation, trading time and quantity, etc. The market fluctuates frequently, and inquiry and comparison are the key ways to obtain accurate prices.

5- (1,1-dimethylethyl) -1H-pyrazole-4-formaldehyde, this substance should be properly stored in a cool, dry and well-ventilated place. Because of its certain chemical activity, it should be stored in the air for a long time or in case of abnormal temperature and humidity, and it is afraid of deterioration.
It is more sensitive to light and heat, so it should be hidden away from light and shade, away from fire and heat sources. If exposed to strong light or high temperature, it may cause structural changes and damage its quality.
When storing, it should be separated from oxidizing agents, acids, bases and other chemicals to prevent dangerous chemical reactions. Due to its chemical properties, contact with these substances may cause violent reactions, endangering safety.
The storage area should be equipped with suitable containment materials to prevent leakage accidents. In the event of leakage, it can be absorbed by inert materials such as sand and vermiculite and disposed of in accordance with relevant regulations to protect the environment and personnel safety. In this way, the stability and safety of 5- (1,1-dimethethyl) -1H-pyrazole-4-formaldehyde during storage can be ensured.