(1S)-1,2,3,4-Tetrahydro-1-(phenyl-d5)isoquinoline

The photochemical structure of (1S) -1,2,3,4-tetrahydro-1- (benzyl-d5) isoquinoline is as follows:
The core structure of this compound is an isoquinoline ring, isoquinoline is a fused ring aromatic hydrocarbon with nitrogen heteroatoms, which is formed by fusing a benzene ring with a pyridine ring. In this specific compound, a specific group is attached to the carbon of the 1 position of the isoquinoline ring.
Wherein, the carbon configuration of the 1 position is (1S), indicating that its stereochemical configuration is S type. And the 1,2,3,4 positions of the isoquinoline ring undergo a hydrogenation process, that is, the addition of hydrogen atoms forms a tetrahydroisoquinoline structure. Furthermore, the group attached to the first carbon position is benzyl, but five hydrogen atoms of the benzyl group are replaced by deuterium (d) to form the (benzyl-d5) structure.
This photochemical structure is characterized by a unique three-dimensional configuration, a hydrogenated isoquinoline ring, and a deuterated benzyl substituent. These structural characteristics will affect the photochemical properties of the compound, such as light absorption, light emission, and photochemical reactivity. The three-dimensional configuration and the presence of substituents can change the distribution of electron clouds in the molecule, which in turn affects the energy difference between the photoexcited state and the ground state, and ultimately has a profound impact on its photochemical behavior.

(1S) -1,2,3,4 -tetrahydro-1- (benzyl-d5) isoquinoline light, this substance has a wide range of uses. It is often used as a key intermediate in the field of organic synthesis. It can be skillfully converted into many organic compounds with complex structures and unique functions through specific chemical reactions, laying the foundation for the creation of new drugs and the development of high-performance materials.
In the field of pharmaceutical chemistry, its importance should not be underestimated. Some drugs developed with it as the starting material or key structural fragments show unique pharmacological activities, which have potential value for the treatment of specific diseases, or can act on specific targets, regulate physiological and biochemical processes in organisms, and provide new opportunities for conquering difficult diseases.
In the field of materials science, with appropriate modification and processing, (1S) -1,2,3,4-tetrahydro-1- (benzyl-d5) isoquinoline light can be integrated into the material system, endowing the material with special optical, electrical or mechanical properties, and expanding the application scenarios of materials, such as in new optoelectronic devices, high-performance composites and other fields.
Furthermore, at the level of scientific research and exploration, as a special labeled compound, it plays an important role in tracking the reaction process and exploring the mechanism of molecular action. By monitoring and analyzing its labeled atoms, researchers can gain in-depth insight into the microscopic process of chemical reactions, clarify the mode and path of intermolecular interactions, and provide key experimental basis for the development and improvement of chemical theory.

The synthesis of (1S) -1,2,3,4-tetrahydro-1- (benzyl-d5) isoquinoline is a key issue in the field of organic synthesis. The synthesis steps are as follows:
The starting materials should be carefully selected, and benzene ring derivatives with specific substituents and nitrogen-containing heterocyclic precursors should be used as the starting point. First, by nucleophilic substitution reaction, the benzene ring derivative containing active halogen atoms is reacted with the nitrogen-containing five-membered heterocyclic ring appropriately activated. In this step, precise regulation of the reaction temperature and the ratio of reactants is of paramount importance. Usually, the reaction temperature is maintained at a moderate low temperature, about 0-10 degrees Celsius, to inhibit the occurrence of side reactions. The molar ratio of the reactants also needs to be strictly controlled, generally 1:1.2 - 1:1.5, that is, the ratio of benzene ring derivatives to nitrogen-containing heterocyclic precursors is so, in order to ensure that the reaction is fully carried out and avoid the formation of impurities caused by excess of a certain reactant.
Then, the key reduction step is carried out, which is the main point of introducing the tetrahydrogen structure. Catalytic hydrogenation is often used, with palladium carbon as a catalyst, and the reaction is in a hydrogen atmosphere. The catalyst dosage is about 3% - 5% (mass fraction) of the total reactant, the hydrogen pressure is controlled at 1-3 atmospheres, and the temperature is maintained at 30-50 degrees Celsius. This process needs to be accurately monitored, and the product is easily impure due to improper hydrogen
As for the introduction of (benzyl-d5) part, it is mostly achieved by nucleophilic substitution or coupling reaction. If nucleophilic substitution is used, appropriate leaving groups should be selected, such as halogen atoms or sulfonate groups. The reaction is carried out in an appropriate organic solvent, such as N, N-dimethylformamide (DMF) or tetrahydrofuran (THF), and an appropriate amount of base is added to promote the reaction. The amount of base depends on the activity of the reactants, generally 1-2 equivalents. If a coupling reaction is used, such as Suzuki coupling, etc., the appropriate ligand and base need to be selected, and the reaction conditions should be strictly controlled to ensure that benzyl-d5 is accurately connected to the target molecule.
During the entire synthesis process, after each step of the reaction, detailed separation and purification are required. Column chromatography or recrystallization are commonly used to ensure the purity of the product, and finally high-purity (1S) -1,2,3,4-tetrahydro-1- (benzyl-d5) isoquinoline photoproducts are obtained.

The physical properties of (1S) -1,2,3,4-tetrahydro-1- (benzyl-d5) isoquinoline light are as follows:
This compound may exhibit unique optical properties under lighting conditions. From the perspective of molecular structure, the (1S) configuration determines that it has a specific spatial orientation, which affects the interaction between light and molecules. The tetrahydroisoquinoline skeleton and benzyl-d5 substituent it contains make the molecule absorb and emit light at specific wavelengths.
In terms of light absorption, due to the intramolecular electron conjugation system and the electronic effect of each group, it absorbs some wavelengths of light in the ultraviolet-visible region. The specific absorption peak position depends on the degree of conjugation and the properties of the substituent. Although the mass of deuterium atoms in benzyl-d5 is different from that of hydrogen, it has little effect on light absorption. The absorption characteristics are mainly determined by the overall conjugated structure and other groups.
In light emission, if excited by light to the excited state, it may emit fluorescence or phosphorescent when it returns to the ground state. Molecular rigid structure and substituents help to stabilize the excited state and improve the luminous efficiency. However, the specific emission wavelength, intensity and lifetime need to be accurately determined by experiments, which will be affected by external conditions such as solvent and temperature. For example, polar solvents may interact with molecules to change their electron cloud distribution and affect photophysical processes.
In addition, photochemical reactions may be triggered under light. The electron cloud density at the benzyl group position is relatively high, which may become a check point for photochemical reactivity. For example, reactions such as photooxidation and photosubstitution occur, which change the structure and properties of molecules. This is also the point that needs to be paid attention to when studying its photophysical properties.

I am looking at the "market price of (1S) -1,2,3,4-tetrahydro-1- (benzyl-d5) isoquinoline light" you are inquiring about. This is the price of a specific compound in the field of fine chemicals. However, it is not easy to know its exact value.
Because the market price is often affected by many factors. First, the price of raw materials. The prices of various raw materials required to synthesize this compound fluctuate. If the cost of preparing key raw materials such as benzyl-d5 rises and falls suddenly, the price of the finished product also fluctuates. Second, the complexity and cost of the preparation process. If the synthesis of this compound requires delicate and complex technology, or requires strict reaction conditions, special equipment and catalysts are required, which will result in a significant increase in production costs and high prices. Third, the state of market supply and demand. If many pharmaceutical companies and scientific research institutions have strong demand for this substance, but the supply is limited, the price will rise; on the contrary, if the demand is weak and the supply is sufficient, the price will decline.
Furthermore, different suppliers, purchase quantities, purity requirements, etc., will make the price different. In a professional chemical raw material trading platform, or inquire from suppliers who specialize in this field, more accurate price information can be obtained. However, at present, I have not carefully observed the exact market conditions, and it is difficult to directly state the price. To obtain an accurate estimate, you can obtain an approximate price by visiting the chemical market, scrutinizing the data of the trading platform, or negotiating with the merchants in the industry.