What is the chemical structure of 2- [2- [4- (chloromethyl) phenyl] -2-iodoethoxy] -1h-isoindole-1,3 (2h) -dione?
The name of this compound is 2 - [2 - [4 - (chloromethyl) phenyl] - 2 - iodoethoxy] - 1H - isoindole - 1,3 (2H) -dione. Its chemical structure can be explained step by step from the name.
"isoindole - 1,3 (2H) -dione" is the basic skeleton. This structure contains a benzene ring fused to a nitrogen-containing hexa- lactam ring, and has two carbonyl groups at the 1,3 position. " 2 - [2 - [4 - (chloromethyl) phenyl] - 2 - iodoethoxy] "means that the 2-position of isoindole-1,3 (2H) -dione is connected to an ethoxy group, and the 2-position of the ethoxy group is connected to a 2 - [4 - (chloromethyl) phenyl] - 2 - iodoethyl group. That is, one end of the ethoxy group is connected to the isoindole-1,3 (2H) -dione, and the other end is connected to the ethyl group. There is an iodine atom substitution at the 2-position, and this ethyl group is also connected with a 4- (chloromethyl) phenyl group, and the 4-position of the phenyl group is replaced by chloromethyl. Therefore, the chemical structure of this compound is clear.
What are the main uses of 2- [2- [4- (chloromethyl) phenyl] -2-iodoethoxy] -1h-isoindole-1,3 (2h) -dione?
2-%5B2-%5B4-%28chloromethyl%29phenyl%5D-2-iodoethoxy%5D-1h-isoindole-1%2C3%282h%29-dione, this is an organic compound with a wide range of uses.
In the field of organic synthesis, it can be used as a key intermediate. The delicacy of organic synthesis lies in the construction of complex organic molecular structures. This compound can be combined with other reagents through specific chemical reactions, paving the way for the synthesis of many organic compounds with unique structures and properties. For example, in the synthesis of some biologically active natural product analogs, this compound can be used as a starting material, and through multiple steps, the target molecular structure can be gradually built, just like a skilled craftsman building a magnificent pavilion with bricks.
In the field of medicinal chemistry, it also has important potential value. Drug research and development requires the search for molecules with specific pharmacological activities. This compound may have the potential to interact with biological targets due to its unique chemical structure. After further structural modification and activity screening, new drug lead compounds may be derived. Just like searching for treasures, this compound may be the key to opening a new path for drug research and development, providing new opportunities to overcome difficult diseases.
In the field of materials science, its use should not be underestimated. The preparation of some functional materials, or relying on this compound to participate in the reaction, endows the material with specific properties, such as changing the optical, electrical or thermal properties of the material. It is like injecting magical power into the material, enabling it to have the special ability to meet different needs, thus playing an important role in many fields such as electronic devices and optical materials.
What are the preparation methods of 2- [2- [4- (chloromethyl) phenyl] -2-iodoethoxy] -1h-isoindole-1,3 (2h) -dione?
The method of preparing 2- [2- [4- (chloromethyl) phenyl] -2 -iodoethoxy] -1H -isoindole-1,3 (2H) -dione can be achieved by multi-step reaction.
The first step is to use 4- (chloromethyl) phenylethanol as the starting material, and place it in a suitable reaction vessel with a suitable halogenating reagent, such as phosphorus triiodide or hydroiodic acid. At the appropriate temperature and reaction time, the hydroxyl group is converted into iodine atoms to generate 4- (chloromethyl) phenethyl iodide. This step requires attention to the amount of halogenated reagents and reaction conditions to prevent overreaction or side reactions.
In the next step, the obtained 4- (chloromethyl) phenethyl iodide and phthalimide potassium salt are mixed in a polar organic solvent such as N, N-dimethylformamide (DMF) or dimethyl sulfoxide (DMSO), heated and stirred. During this time, the halogenated hydrocarbon and the phthalimide negative ion undergo nucleophilic substitution reaction to generate 2- [2- [4- (chloromethyl) phenyl] -2 -iodoethoxy] -1H -isoindole-1,3 (2H) -dione. This step should strictly control the reaction temperature and time to ensure that the reaction is sufficient, and pay attention to the anhydrous and oxygen-free environment of the reaction system, so as not to affect the reaction process and product purity.
Or another route can be found. First, 2-hydroxyethoxy-1H-isoindole-1,3 (2H) -dione is synthesized by reacting phthalic anhydride with ethanolamine, and then the product is nucleophilic substitution with 4- (chloromethyl) benzyl chloride in a suitable organic solvent under basic conditions, such as potassium carbonate or sodium hydroxide, and then reacts with iodizing reagents to convert the chlorine atoms into iodine atoms. The target product can also be obtained. This route also requires careful control of the reaction conditions at each step, paying attention to factors such as the proportion of reactants, reaction temperature, time and solvent selection, in order to improve the yield and purity of the product.
After the reaction is completed, suitable separation and purification methods can be selected according to the characteristics of the product, such as column chromatography, recrystallization method, etc., to remove impurities and obtain high-purity 2- [2- [4- (chloromethyl) phenyl] -2 -iodoethoxy] -1H -isoindole-1,3 (2H) -dione.
What are the physical and chemical properties of 2- [2- [4- (chloromethyl) phenyl] -2-iodoethoxy] -1h-isoindole-1,3 (2h) -dione?
This is 2 - [2 - [4 - (chloromethyl) phenyl] - 2 - iodoethoxy] - 1H - isoindole - 1,3 (2H) -dione. Its physical and chemical properties are as follows:
- ** Physical properties **:
- ** Appearance **: This compound is often solid, but the exact color state varies depending on the purity and preparation method. It is either a white to light yellow powder or a crystalline solid. In laboratory view, it is often shown as a delicate powder, which is smooth to the touch.
- ** Melting point **: Although no specific data are available, the melting point of similar compounds containing isoindole-1,3 (2H) -dione structures is mostly between 150-300 ° C. It is speculated that the melting point of this compound or in this range, because there are rigid structures such as benzene ring and isoindole dione in the molecule, and the intermolecular force is strong, a higher temperature is required to break it, so that the lattice disintegrates and melts.
- ** Solubility **: Due to the fact that its structure contains hydrophobic benzene ring and isoindole dione groups, the solubility is limited in polar solvents such as water. However, in organic solvents such as dichloromethane, chloroform, N, N-dimethylformamide (DMF), it may have good solubility. Because organic solvents such as dichloromethane can generate van der Waals force with the non-polar part of the compound, thereby assisting its dissolution.
- ** Chemical Properties **:
- ** Reactivity **: The chloromethyl part of the 4- (chloromethyl) phenyl group in its structure has high reactivity. The chlorine atom is connected to benzyl carbon. Due to the conjugation effect of the benzene ring, the stability of the benzyl carbon positive ion is increased, and the chloromethyl group is prone to nucleophilic substitution. In the case of alcohol nucleophiles, the chlorine atom can be replaced by an alkoxy group to generate the corresponding
- ** Iodine atom reactivity **: The iodine atom of 2-iodoethoxy is also an active check point. The iodine atom has a large radius, the C-I bond energy is relatively small, and it is easy to crack. It can participate in coupling reactions, such as Heck reaction with olefins under palladium catalysis to form carbon-carbon double bonds and expand the carbon skeleton of molecules.
- ** Isoindole-1,3 (2H) -dione reaction **: This structure has a certain acidity, and the hydrogen on the nitrogen atom can leave under the action of a base to form corresponding negative ions. The negative ion can be used as a nucleophilic reagent to react with halogenated hydrocarbons and other electrophilic reagents to achieve N-alkylation and enrich the structure and properties of molecules.
2- [2- [4- (chloromethyl) phenyl] -2-iodoethoxy] -1h-isoindole-1,3 (2h) -dione What are the precautions during use?
2-%5B2-%5B4-%28chloromethyl%29phenyl%5D-2-iodoethoxy%5D-1h-isoindole-1%2C3%282h%29-dione is an organic compound, and many matters need to be paid special attention during use.
This compound has potential chemical activity and special reaction characteristics. First, because it contains halogen atoms, such as chlorine and iodine, it is easy to trigger reactions such as nucleophilic substitution when encountering specific reagents or conditions. When operating, it is necessary to strictly control the reaction conditions, such as temperature, pH and reaction time. A slight deviation may cause the reaction to go out of control, generate by-products, or affect the purity and yield of the products.
Second, halogenated organic compounds have certain toxicity and environmental risks. When using, protective measures are essential. Protective clothing, gloves and goggles are required to avoid direct contact with the skin and eyes, and to prevent inhalation of its volatile gases to prevent damage to health. And its waste should follow specific procedures and should not be discarded at will to avoid polluting the environment.
Furthermore, the compound has complex structure, stability or variables. When storing, choose a suitable environment, usually in a dry, cool and well-ventilated place, away from fire sources and oxidants, etc., to prevent dangerous reactions. Before use, it is also necessary to carefully check its appearance and properties. If there is any abnormality, it must not be used rashly.
Use 2-%5B2-%5B4-%28chloromethyl%29phenyl%5D-2-iodoethoxy%5D-1h-isoindole-1%2C3%282h%29-dione, be sure to be rigorous and meticulous, follow the standard operating procedures, pay attention to safety and environmental protection, in order to ensure the smooth progress of experiments or production.