2,9-dimethylisoquino[4',5',6':6,5,10]anthra[2,1,9-def]isoquinoline-1,3,8,10(2H,9H)-tetrone

This is a chemical nomenclature, and its structure is deduced according to its name. It is like following a spider's silk to find a giant web. The meaning of each part of its name needs to be analyzed in detail.
"2,9-dimethyl isoquinoline [4 ', 5', 6 ': 6,5,10] anthracene [2,1,9-def] isoquinoline-1,3,8,10 (2H, 9H) -tetraketone". First look at the base of "isoquinoline", which has a structure of nitrogen hexa and benzene ring fused. "2,9-dimethyl" is shown in the specific 2 and 9 positions of isoquinoline structure with methyl addition.
Look again at "[4 ', 5', 6 ': 6,5,10] anthracene [2,1,9-def] isoquinoline", which shows that on the basis of the isoquinoline structure, it is fused with anthracene in a specific sub-location. "Anthracene" is a tricyclic merged aromatic hydrocarbon, which is connected to isoquinoline by the order of [4', 5 ', 6': 6,5,10]. And "[2,1,9-def] isoquinoline" further refines the fusing method.
Finally, "-1, 3, 8, 10 (2H, 9H) -tetraketone" indicates the existence of carbonyl groups (C = O) at positions 1, 3, 8, and 10, and the 2H and 9H are supported by hydrogen atoms.
In summary, the structure of this compound is based on isoquinoline, modified by methyl, fused with anthracene, and has carbonyl groups in many places, forming a complex organic structure as a whole. Its structure is exquisite, just like the treasures carefully carved by ancient craftsmen. The parts are closely interlocked according to chemical rules, resulting in this unique chemical structure.

2% 2C9-dimethylisoquinoline [4 ', 5', 6 ': 6,5,10] anthracene [2,1,9-def] isoquinoline-1,3,8,10 (2H, 9H) -tetraketone, this is an organic compound. Its physical properties, let me tell them one by one.
Looking at its properties, under normal temperature and pressure, it may be in a solid state, but the exact appearance may be affected by its purity, crystal form and other factors. As for the color, if there is no special group to give it significant absorption characteristics, it is most likely white or off-white.
When it comes to the melting point, the melting point of organic compounds can often help us distinguish its purity and structure. The melting point of this compound is closely related to the intermolecular force. The strong intermolecular force has a high melting point. In this molecule, due to the existence of many conjugated systems and polar groups, intermolecular or hydrogen bonds, van der Waals forces, etc., the melting point is relatively high. However, to know the exact melting point value, it needs to be accurately determined by experiments.
In terms of solubility, its solubility is closely related to the polarity of the molecule. The molecule contains multiple carbonyl groups, and the polarity is not weak. Therefore, in polar solvents, such as common ethanol, acetone, etc., there may be a certain solubility. However, in non-polar solvents, such as n-hexane, benzene, etc., the solubility may be extremely low.
In addition, its density and density are related to the weight of the molecule and the degree of packing compactness. The molecular structure of this compound is complex, the mass is large, and the intermolecular interaction causes its packing or compactness, so the density may be greater than that of common organic solvents.
In summary, the physical properties of 2% 2C9-dimethyl isoquinoline [4 ', 5', 6 ': 6,5,10] anthracene [2,1,9-def] isoquinoline-1,3,8,10 (2H, 9H) -tetraketone are deeply affected by its structure, and the accurate data can only be known by experimental determination.

This substance is called 2,9-dimethylisoquinoline [4 ', 5', 6 ': 6,5,10] anthracene [2,1,9-def] isoquinoline-1,3,8,10 (2H, 9H) -tetraketone. Its chemical properties are quite unique.
Structurally, this compound contains multiple fused heterocyclic structures, which give it a special electron cloud distribution and spatial configuration. There are multiple carbonyl groups (-CO -) in this substance, and the carbonyl groups have strong polarity, which makes it possible to form hydrogen bonds or other intermolecular forces between molecules, which affects its physical and chemical properties.
In terms of chemical activity, carbonyl groups can participate in a variety of chemical reactions. For example, nucleophilic addition reactions can occur, such as reactions with nucleophiles containing active hydrogen, such as water, alcohols, amines, etc., to generate corresponding addition products.
Due to the presence of a large number of conjugated systems in the molecule, the substance may have certain optical properties, such as fluorescence properties. The conjugated system can delocalize electrons in the entire system. After absorbing light of a specific wavelength, the electrons transition and may emit fluorescence when returning to the ground state.
At the same time, the fused heterocyclic structure also makes the substance have certain stability. However, under certain conditions, such as strong acid-base, high temperature, etc., the heterocyclic ring may undergo reactions such as ring opening, which may change the molecular structure and properties. Its unique structure and properties may have potential applications in fields such as organic synthesis and materials science.

This is a very complex chemical substance, called 2,9-dimethylisoquinoline [4 ', 5', 6 ': 6,5,10] anthrano [2,1,9-def] isoquinoline-1,3,8,10 (2H, 9H) -tetraketone. These compounds are often found in the fields of chemical synthesis and drug development.
In the process of chemical synthesis, organic synthesis chemists may use it as a key intermediate to carefully construct complex molecular structures through various chemical reactions, such as nucleophilic substitution and oxidation reduction, to achieve specific chemical properties and functions. The unique structure of this compound may endow it with special electronic effects and spatial hindrances, paving the way for the synthesis of novel organic materials and bioactive molecules.
In the field of drug research and development, it may exhibit potential biological activity due to its unique molecular shape and electron distribution. Researchers may delve deeper into its interactions with biological macromolecules, such as proteins and nucleic acids, in the hope of finding new opportunities for treating diseases. It may be expected to become a lead compound for anti-cancer, anti-inflammatory, antibacterial and other drugs. After structure optimization and activity screening, new drugs with high efficiency and low toxicity can be obtained.
Although this substance is very complex, chemists use their exquisite skills and profound knowledge to handle it in the laboratory to explore its properties and explore its uses, so as to benefit the progress of chemistry and medicine.

To prepare 2% 2C9 -dimethylisoquinoline %5B4%27%2C5%27%2C6%27%3A6%2C5%2C10%5D anthracene% 5B2% 2C1% 2C9 -def% 5D isoquinoline-1%2C3%2C8%2C10%282H%2C9H%29-tetraketone, there are three methods.
First, phthalic anhydride and 2-methylquinoline are used as the starting point and heated in sulfuric acid. The carbonyl group of phthalic anhydride and the methyl group of 2-methylquinoline are condensed and cyclized to form the target. In this reaction, sulfuric acid is the catalyst and solvent, and the reaction is accelerated at high temperature. However, sulfuric acid has strong corrosion and complicated post-treatment. Neutralization and washing of acid are required, and the yield is not very high. < Br >
Second, 2-methyl-3-nitrobenzoic acid and o-phenylenediamine are used as materials. The intermediate is condensed first, and then reduced and cyclized. During condensation, the two dehydrate to form a ring, and the nitro group is reduced to an amino group, and the amino group is cyclized with an ortho-carbonyl group to obtain the target. There are many steps in this way, but the conditions are mild, the reaction of each step is easy to control, and the product has good purity.
Third, naphthalene anhydride and 2-methylquinoline are used as groups to react under a specific catalyst. The activity of naphthalene anhydride is high, and it is catalyzed by condensation and rearrangement with 2-methylquinoline to form 2% 2C9-dimethylisoquinoline %5B4%27%2C5%27%2C6%27%3A6%2C5%2C10%5D anthracene% 5B2% 2C1% 2C9-def% 5D isoquinoline-1%2C3%2C8%2C10%282H%2C9H%29-tetraketone. This method is the key catalyst, and the high-efficiency catalyst can improve the yield and selectivity, and the reaction conditions are better, and the post-treatment is slightly simpler.
All methods are prepared, each has its advantages and disadvantages. The appropriate method should be selected according to actual needs, such as yield, purity, cost, environmental protection, etc., to achieve the best preparation effect.