2 Iodo 9h Fluorene 90

2-Iodine-9H-fluorene, with a content of more than 90%. Its chemical properties are as follows:
This substance has the properties of aromatic hydrocarbons. Due to the aromatic ring structure containing fluorene, it has the common reactivity of aromatic hydrocarbons. Its aromatic ring can undergo electrophilic substitution reactions, such as halogenation, nitrification, sulfonation, etc. Due to the existence of iodine atoms, special properties are added. Iodine atoms are electron-withdrawing groups, which can reduce the density of electron clouds in adjacent and para-positions. When electrophilic substitution is induced, the meta-position is relatively more vulnerable to attack.
Iodine atoms can undergo various reactions. Under appropriate conditions, nucleophilic substitution reactions can occur, and iod For example, when reacting with sodium alcohol, iodine can be replaced by alkoxy groups to obtain corresponding ether derivatives; when reacting with amines, nitrogen-containing derivatives can be formed.
2-iodine-9H-fluorene may also participate in metal-catalyzed reactions, such as palladium-catalyzed coupling reactions. In the presence of palladium catalysts and ligands, it is coupled with compounds containing boric acid or borate esters to form carbon-carbon bonds and generate aromatic derivatives with new structures, which is extremely important in organic synthesis.
Because of its fluorene-containing structure, it has certain fluorescence properties and may have applications in the fields of photophysics and photochemistry, such as the preparation of fluorescent materials, which can generate fluorescence emission when excited by light.
In addition, the chemical properties of 2-iodine-9H-fluorene are also influenced by the interactions of other atoms and groups in its molecules, such as intra-molecular conjugation effects, steric hindrances, etc., which can all affect the reactivity and selectivity.

2-Iodo-9H-fluorene (2-iodo-9H-fluorene, 90 +%) has a wide range of uses. In the field of organic synthesis, it is often a key raw material. It can be used to create various compounds containing fluorene structures, which are of great significance in the field of materials science.
Looking at the end of the optoelectronic material, 2-iodo-9H-fluorene is used as the starting material. After various reactions, materials with excellent photoelectric properties can be prepared. For example, materials used in organic Light Emitting Diode (OLED), those containing fluorene structures can give them good luminous efficiency and stability. By chemically modifying 2-iodine-9H-fluorene, the energy level and emission wavelength of the material can be adjusted to meet the needs of different display technologies.
Furthermore, in the field of pharmaceutical chemistry, 2-iodine-9H-fluorene also has potential uses. The structure of fluorene can provide unique spatial configuration and electronic properties, adding a novel framework for drug molecule design. By introducing different functional groups, drugs with specific biological activities may be developed.
In scientific research and exploration, 2-iodine-9H-fluorene is an important organic reagent for chemists to explore new reaction mechanisms and expand synthesis methods. Its iodine atom has high reactivity, which can trigger many reactions such as nucleophilic substitution and coupling, assist in the synthesis of complex organic molecules, and pave the way for the development of organic chemistry.

2-Iodine-9H-fluorene, with a content of more than 90%. The preparation method is as follows:
First, 9H-fluorene is used as the starting material. In the reactor, an appropriate amount of organic solvent, such as dichloromethane, is added, and 9H-fluorene is dissolved in it to form a homogeneous solution. The solvent needs to be pure and anhydrous so as not to affect the reaction process. After
, under the condition of low temperature cooling and stirring, slowly add the iodine source dropwise. The iodine source can be selected from the combination of iodine elemental substance and suitable oxidizing agent, such as iodine and hydrogen peroxide, or the use of iodizing reagents such as N-i If iodine and hydrogen peroxide are used, hydrogen peroxide is slowly added dropwise, and its function is to oxidize iodine into a more viable iodine positive ion, thereby promoting the reaction with fluorene.
During the reaction process, the temperature needs to be closely monitored, generally maintained at 0-10 ° C. Because the temperature is too high, it may initiate side reactions and generate multi-iodine substitutes; if the temperature is too low, the reaction rate is too slow and the time is too long. The stirring speed should also be moderate to ensure that the reactants are in full contact.
After the reaction is completed, use a suitable post-treatment method. Add an appropriate amount of reducing agent, such as sodium sulfite solution, to remove the unreacted iodine. Next, perform liquid separation operation to separate the organic phase. The organic phase is then washed several times with distilled water to remove water-soluble impurities.
Subsequently, the organic phase is dried, and anhydrous sodium sulfate or magnesium sulfate can be selected. After drying, the organic solvent is removed by vacuum distillation to obtain the crude product.
Finally, the crude product is purified. The commonly used purification method is column chromatography. Silica gel is used as the stationary phase, and a suitable eluent is selected, such as the mixed solvent of petroleum ether and ethyl acetate. According to the difference in the distribution coefficient between the product and the impurities in the stationary phase and the mobile phase, the separation is achieved. Finally, 2-iodine-9H-fluorene with a content of more than 90% can be obtained.

2-Iodine-9H-fluorene, with a content of more than 90%. This is a chemical substance. When storing and transporting, many matters need to be paid attention to.
Let's talk about storage first. Because of its nature, it may be active, and the environment is dry first. Moisture is easy to cause chemical reactions and cause deterioration, so it should be placed in a dry place to avoid water vapor intrusion. And it should be stored at low temperature. High temperature can promote its decomposition or accelerate the reaction. Generally, it is suitable to be in a cool and cool place. The temperature should be controlled within a specific range, depending on its physical and chemical properties. Furthermore, it is necessary to prevent light. This compound may be sensitive to light, under light, or cause photochemical reactions, which damage its quality. It should be stored in an opaque container or in a dark place in the warehouse. And because it may be toxic and corrosive to a certain extent, the storage place must be kept away from food, medicine and within the reach of humans and animals, and it must be clearly marked to make people aware of its dangerous characteristics.
As for transportation, packaging is crucial. Strong and well-sealed packaging materials are required to prevent leakage. If it is liquid, the packaging should be pressure-resistant and impact-resistant to avoid damage due to bumps and collisions during transportation. During transportation, a stable environment should also be maintained, and the temperature and humidity should be maintained. It should not be high or low, dry or wet. Transportation personnel need professional training to be familiar with its dangerous characteristics and emergency treatment methods. In the event of an accident such as leakage, they can be dealt with quickly and properly. At the same time, transportation vehicles should be equipped with corresponding emergency equipment and protective equipment to ensure transportation safety.

2-Iodine-9H-fluorene, with a content of more than 90%, the market price range is quite difficult to determine. This is due to the ease of the market price, which often varies with many reasons.
First, the quality of the material has a great impact. If its purity is higher and there are fewer impurities, the price may increase; otherwise, the price will decrease.
Second, the trend of supply and demand affects the market. If there are many applicants and there are few suppliers, the price will rise; if supply exceeds demand, the price will fall.
Third, the cost of production is also a major factor. The price of raw materials, the cost of labor, the consumption of equipment, and other expenses are all related to the selling price. If the cost is high, the price is also difficult to lower.
Fourth, the place where the market is easy affects the price. Different domains have different taxes and different transportation costs, all of which make the price different.
According to past examples, the price per gram may be between tens of yuan and hundreds of yuan. However, this is only a rough number, and it is difficult to determine. To know the exact price, you must consult pharmaceutical companies, chemical companies, or observe the real-time market conditions before you can get a more accurate price.