1,3-Diene-2-ketones have important uses in many fields. In the context of ancient crafts involved in "Tiangong Kaiwu", it also has its unique application.
In the ancient dyeing and weaving industry, some 1,3-diene-2-ketones can be used as key components of natural dyes or participate in the dye preparation process. Because of its specific chemical structure, it can be combined with fabric fibers to give fabrics a rich and long-lasting color. Ancient dyers have mastered the method of extracting substances containing such structures from natural plants or minerals through long-term practice. Through ingenious blending and processing, they achieved exquisite control of the color of fabrics, adding gorgeous colors to clothing and fabrics, and meeting the needs of different classes for aesthetics.
In the field of ancient medicine, 1,3-diene-2-ketones are also involved. When traditional physicians searched for remedies for diseases, they found that some natural products containing this structure had certain medicinal effects. Or because they can interact with specific targets in organisms, regulate physiological functions, and play a relieving or therapeutic role in some diseases. Although ancient knowledge of its mechanism of action was limited, with the accumulation of experience, related substances were applied to medical practice to relieve pain for patients.
In addition, in the production of ancient fragrances, 1,3-diene-2-ketones may give fragrances their unique smell and stability. Fragrances were indispensable in ancient courts, aristocratic life and religious ceremonies. The presence of such compounds can make fragrances emit more attractive and lasting aromas, improve the quality of fragrances, satisfy people's pursuit of aroma, create an elegant atmosphere, and play an important role in social and religious activities.

1% 2C3-diene-2-naphthol, this substance is an organic compound with unique physical properties. It is in solid form at room temperature and pressure, and it is often white to light yellow crystalline in appearance. The texture is brittle, and it feels delicate when touched by hand.
Its melting point is quite critical, about a specific temperature range. At this temperature, the substance gradually melts from solid to liquid. This property is of great significance in many chemical operations, such as purification, identification, etc. In terms of boiling point, it is also in the corresponding temperature range. This is the critical temperature for a substance to change from liquid to gas, which has a profound impact on its separation, distillation and other processes.
Solubility is also one of the important physical properties. In organic solvents, such as ethanol, ether, etc., 1% 2C3-diene-2-naphthol exhibits good solubility and can be uniformly dispersed to form a uniform and stable solution. However, in water, its solubility is poor, and it mostly exists in the form of precipitation. This difference provides a convenient way for its separation and purification.
Furthermore, its density is different from that of water, which needs to be taken into account when involving operations such as liquid-liquid separation. In addition, the odor of the substance is slight, although it is not pungent, it is still necessary to maintain a well-ventilated environment during operation to prevent potential adverse effects on the human body.
Its crystal structure is also unique, with an orderly arrangement of atoms inside. This structural property is interrelated with many physical properties, jointly determining the performance of 1% 2C3-diene-2-naphthol in various chemical and physical processes, laying the foundation for its application in chemical, materials and other fields.

1,3-Diene-2-ketones are widely used in the field of organic synthesis, and there are many synthesis methods. The following are some common methods for you to introduce:
1. Clyson rearrangement
Clyson rearrangement is a classic reaction for constructing carbon-carbon bonds. When allyl vinyl ethers are heated, they undergo [3,3] -migration rearrangement to form γ, δ-unsaturated carbonyl compounds. This product can be further converted to obtain 1,3-diene-2-ketones. For example, the allyl phenyl ether is used as the starting material, heated under appropriate conditions, rearranged to form o-allyl phenol, and then oxidized to obtain the corresponding 1,3-diene-2-ketone. The reaction mechanism is exquisite. During the rearrangement process, the atom migration is achieved through the transition state of the hexa- membered ring, and the configuration is retained, which provides an effective strategy for the synthesis of 1,3-diene-2-ketones with specific configurations.
2. Diels-Alder Reaction Method
Diels-Alder Reaction, also known as Diene Addition Reaction, reacts conjugated dienes with dienophiles to form hexa- membered cyclic compounds. The structure of 1,3-diene-2-keto can be constructed by selecting suitable conjugated dienes and dienophiles containing carbonyl groups. For example, 1,3-butadiene reacts with acronaldehyde to form cyclohexenal compounds, and then through appropriate oxidation and elimination reactions, the target 1,3-diene-2-keto can be obtained. The reaction has the advantages of good stereoselectivity and high atomic economy, which can efficiently construct the carbon ring skeleton and lay the foundation for the synthesis of complex 1,3-diene-2-keto compounds.
3. Metal catalytic coupling method
Metal catalytic coupling reaction has developed rapidly in recent years. Using transition metals such as palladium and nickel as catalysts, halogenated aromatics or halogenated olefins are coupled with nucleophiles such as alkenyl borates and alkenyl halides. For example, under palladium catalysis, halogenated styrene and alkenyl borates undergo Suzuki coupling reaction under the action of bases to form conjugated diene structures. Subsequent reactions such as carbonylation can introduce carbonyl groups to synthesize 1,3-diene-2-one. This kind of method is mild and highly selective, and can precisely modify the molecular structure, opening up a new path for the synthesis of new 1,3-diene-2-ketones.

1% 2C3-diene-2-naphthol is a chemical substance. When storing and transporting, the following numbers should be paid attention to:
First, storage is essential. This substance should be placed in a cool, dry and well-ventilated place, away from fire and heat sources. Because it may be flammable, it is easy to burn in case of open flames and hot topics, so it must be kept away from fire sources. And it needs to be stored separately from oxidants and acids, and must not be stored together. Edge oxidants and acids or chemical reactions with this substance pose a risk to safety. At the same time, the storage place should be equipped with suitable materials to contain leaks to prevent inadvertent leakage, and can be dealt with in time to minimize harm.
Second, transportation regulations. Be sure to ensure that the packaging is complete and the loading is safe before transportation. If the packaging is damaged, it may cause material leakage during transportation, polluting the environment and posing a safety hazard. During transportation, drive strictly according to the specified route, and do not stop in densely populated areas and traffic arteries. Because the substance may be dangerous to a certain extent, stop in crowded and busy places. Once an accident occurs, the impact will be huge. The means of transportation should also be equipped with the corresponding variety and quantity of fire protection equipment and leakage emergency treatment equipment. If there is an unexpected situation during transportation, it can be responded immediately and properly disposed of.
Third, the need for protection. Storage and transportation personnel should take good personal protection. Appropriate protective clothing, protective gloves and goggles should be worn. This substance may be irritating to human skin, eyes, etc., and good protection can protect people from harm. After the operation is completed, it is necessary to wash and change clothes in time to prevent residual substances from harming people.

The market price of 1% 2C3-diene-2-ketoanthracene often changes due to various reasons. These things have their own needs in all kinds of consumption, and the price is determined, which is related to the source of the material, the difficulty of making the art, and the situation of the market.
If the material is easy to harvest, the source is wide and smooth, the price may be flat. If the source is thin and difficult to harvest, the price will rise. The craftsmanship is difficult, the labor is large, and it takes a long time. It requires exquisite methods and expensive utensils. The cost increases and the price also rises. If the market seeks prosperity, and everyone strives to buy, the price will increase; if the demand is small, the supply will exceed the demand, and the price will drop.
In today's world, trade and transportation are convenient, and they are interconnected far and near. The prices of various places may vary, and it is also due to the difference in freight and taxes. In addition, the market changes instantaneously, sometimes the price is high, sometimes the price is low, and it is difficult to set a certain number. Or because of new technologies, improved manufacturing technology, and cost reduction, the price falls; or because other things can be replaced, the price drops.
Therefore, if you want to know the market price of 1% 2C3-diene-2-ketoanthracene, when you carefully examine the materials, crafts, and market conditions, you can know the approximate, and it is difficult to have a constant price.