(R)-2-Bromo-7-((Tert-Butyldiphenylsilyl)Oxy)Hept-1-En-4-Yl 4-Methylbenzenesulfonate

(R) -2-bromo-7- (tert-butyldiphenylsilyl) oxy) heptyl-1-enyl-4-yl-4-methylbenzenesulfonate, an organic compound. Its physical and chemical properties are as follows:
Under normal conditions, it is either a colorless to light yellow oily liquid or a crystalline solid. Due to the different groups in the structure of the compound, its physical morphology varies.
In terms of solubility, the compound has little solubility in water due to its long carbon chain and hydrophobic groups such as silicon groups. However, it is better soluble in common organic solvents such as dichloromethane, chloroform, and tetrahydrofuran. This property is conducive to acting as a reactant or intermediate in organic synthesis reactions, because many organic reactions are carried out in organic solvents.
In terms of melting point, due to the presence of benzenesulfonate groups, siloxy groups, and unsaturated double bonds in the structure, the intermolecular forces are complex. It is speculated that its melting point may be in a specific range, and the specific value needs to be accurately determined by experiments.
In terms of stability, the carbon-bromine bond in the molecule has a certain activity. Under specific conditions, such as heat, light, or encountering nucleophiles, it is easy to react and cause the carbon-bromine bond to break. The silicon-oxygen bond is relatively stable, but under strong acidic or strong basic conditions, reactions such as hydrolysis may also occur. Unsaturated double bonds are easy to participate in the addition reaction, and electrophilic addition or free radical addition can occur when suitable reagents are encountered, which can change the structure of the compound.
In summary, the physicochemical properties of (R) -2-bromo-7- (tert-butyldiphenylsilyl) oxy) heptyl-1-ene-4-yl-4-methylbenzenesulfonate are affected by the interaction of various groups in its structure. When applying in the field of organic synthesis, these properties need to be carefully considered.

The synthesis of (R) -2-bromo-7- ((tert-butyldiphenylsilyl) oxy) heptyl-1-ene-4-yl-methylbenzenesulfonate is a delicate matter in organic synthetic chemistry. This compound has a unique structure, and the synthesis path needs to follow the principles of organic chemistry and be achieved through many reaction steps.
The first step may be to find a suitable starting material to build the basic skeleton of the molecule. For example, choose a compound with a suitable functional group that can be converted into part of the target structure in subsequent reactions. Or a compound containing alkenyl and hydroxyl groups can be selected. The alkenyl group can be left for subsequent construction of a double bond structure, while the hydroxyl group can be reacted with the tert-butyldiphenylsilyl group to obtain a 7- (tert-butyldiphenylsilyl) oxy group) moiety. In this step, it is often achieved by a silylation reaction, using reagents such as tert-butyldiphenylsilyl chloride, under the catalysis of a suitable base, to react with hydroxyl compounds to form a silicon ether structure.
The second step is for the introduction of the 2-bromo moiety. The halogenation reaction can be used to select suitable brominating reagents, such as N-bromosuccinimide (NBS), etc. The reaction conditions, such as temperature and solvent, need to be carefully adjusted during the reaction Suitable solvents or halogenated hydrocarbons such as dichloromethane. In this solvent, under the action of light or initiator, NBS can selectively introduce bromine atoms into specific positions, so as to achieve the purpose of introducing bromine atoms at the second position.
Furthermore, construct the 4-methylbenzenesulfonate moiety. Generally, the intermediate containing hydroxyl groups can be reacted with p-toluenesulfonyl chloride in the presence of bases. Bases such as pyridine can promote the reaction to convert the hydroxyl group into a p-toluenesulfonate group, thereby obtaining the target compound (R) -2-bromo-7- ((tert-butyldiphenylsilyl) oxy) heptyl-1-ene-4-yl 4-methylbenzenesulfonate.
The whole process of synthesis is crucial to control the reaction conditions. Each step needs to monitor the reaction process to determine the purity and yield of the product. After each step of the reaction, it is often necessary to purify the product by column chromatography, recrystallization and other means to provide pure raw materials for the next reaction and finally obtain the target product.

(R) -2-bromo-7- (tert-butyldiphenylsilyl) oxy) heptyl-1-alkenyl-4-yl-4-methylbenzenesulfonate is widely used in the field of organic synthesis.
One of them is often used as a key intermediate. Because its structure contains various active functional groups such as alkenyl, bromine atom, siloxy group and benzenesulfonate group, various compounds with complex structures can be derived by various chemical reactions, such as nucleophilic substitution, elimination reaction, coupling reaction, etc. In the construction of carbon-carbon bonds, alkenyl groups can participate in palladium-catalyzed cross-coupling reactions, such as Suzuki coupling, Heck coupling, etc., whereby they can be connected to boron-containing, halogenated aromatics and other reagents to achieve the growth of carbon chains and the expansion of molecular frameworks. Bromine atoms are highly active, and in nucleophilic substitution reactions, they are easily replaced by nucleophiles such as alkoxides and amines, and new functional groups are introduced to construct compounds with specific functions.
Second, it also plays an important role in the total synthesis of natural products. Many natural products have complex structures and unique biological activities. In the synthesis of such natural products, (R) -2-bromo-7- ((tert-butyldiphenylsilyl) oxy) heptyl-1-ene-4-yl 4-methylbenzenesulfonate can be used as the key fragment. With the reaction characteristics of its functional groups, the complex structure of natural products is gradually built, which provides the possibility for obtaining natural products and studying their biological activities.
Third, in the field of medicinal chemistry, it can be used to design and synthesize new drug molecules. Through the modification and transformation of its functional groups, a library of compounds with different pharmacological activities can be synthesized for screening lead compounds with potential medicinal value, laying the foundation for the development of new drugs.

(R) -2-bromo-7- (tert-butyldiphenylsilyl) oxy) heptyl-1-ene-4-yl-4-methylbenzenesulfonate This compound has many important things to pay attention to during storage and transportation.
The first thing to bear the brunt is the temperature and humidity of the environment. This compound is quite sensitive to temperature and humidity, and high temperature or high humidity environment may cause it to deteriorate. Therefore, it should be stored in a cool and dry place, the temperature should be maintained within a specific range, and the humidity should be strictly controlled to prevent its structure from changing due to environmental factors, affecting its chemical properties and purity.
Secondly, light is also a key factor. Light may trigger photochemical reactions of this compound, causing it to decompose or undergo other adverse chemical transformations. Therefore, during storage and transportation, efforts should be made to avoid exposure to strong light. It is best to store it in an opaque container, and shading measures should also be taken during transportation.
Furthermore, the packaging of this compound must be strong and well sealed. A strong packaging can prevent it from being damaged by collision and extrusion during transportation; a good seal can avoid contact with external air, moisture and other substances to prevent oxidation, hydrolysis and other reactions to ensure its stability.
In addition, special attention should be paid to vibration and bumps during transportation. Excessive vibration or turbulence may cause changes in the internal structure of the compound, or even cause danger. Therefore, appropriate cushioning and shock absorption measures should be taken during transportation to ensure its stability during transportation.
Finally, storage and transportation sites should be kept away from fire, heat sources and other potentially dangerous chemicals. Because it may be flammable or there is a risk of reaction with certain substances, only in this way can the safety and stability during storage and transportation be guaranteed to the greatest extent.

The price of (R) -2-bromo-7- (tert-butyldiphenylsilyl) oxy) heptyl-1-ene-4-yl-4-methylbenzenesulfonate in the market is unknown. However, the price of this compound is often variable and subject to various factors.
First, the difficulty of synthesis is related to its price. If the preparation requires difficult steps, special reagents or harsh reaction conditions, the price must be high. This compound contains silicon group and sulfonate group, and the synthesis or multi-step reaction is involved. In order to precisely control the stereochemistry or increase the difficulty of synthesis, the price will also increase.
Second, the cost of raw materials has a great impact. If the starting materials used are rare or expensive, the finished product price is also high. The price of tert-butyl diphenylsilyl-based related reagents and 4-methylbenzene sulfonate raw materials fluctuates, resulting in changes in the price of this compound.
Third, market supply and demand are also key. If the scientific research community has a large demand for this compound and the supply is limited, the price will rise. If it is only needed in niche areas, the production is small, and the price may be high due to poor scale efficiency; if the demand is wide and the production scale can be expanded, the price may decrease due to competition and large-scale production.
Fourth, purity is also a pricing factor. High purity (R) -2-bromo-7- (tert-butyldiphenylsilyl) oxy) heptyl-1-ene-4-yl-4-methylbenzenesulfonate is more difficult to prepare, so the price is higher than that of ordinary purity.
For exact market prices, please consult chemical reagent suppliers such as Sigma-Aldrich, Alfa Aesar, etc. They often price according to their own costs and market strategies, and the price may vary from time to time. You can also refer to academic literature, industry reports, or ask industry experts and researchers, who may have experience and insight into the price of this compound.