Tri-tert-butylphosphine Tetrafluoroborate CAS 131274-22-1

Tri-tert-butylphosphine tetrafluoroborate, Also known as tri tert butyl phosphate tetrafluoroborate, tri tert butyl phosphate tetrafluoroborate, etc., it is a chemical substance that appears as a white to pale yellow crystalline powder. It can be obtained by reacting chlorinated tert butane with phosphorus tribromide. The specific steps involve the preparation of formatting reagents, reaction with phosphorus tribromide, and subsequent acid-base treatment and crystallization, requiring strict experimental conditions and operational skills. It is mainly used as a biochemical reagent and as a biomaterial or organic compound in life science related research. In addition, it also plays an important role in chemical synthesis, such as serving as a ligand for palladium catalyzed enantioselective α - arylation of N-Bock-pyrrolidine. Used together with palladium (0) -15 membered triocene macrocyclic compounds for Suzuki cross coupling reaction of aryl bromide and chloride. Used for Heck coupling of toluene sulfonate vinyl ester with olefins. Therefore, when storing and using, the storage container should be kept sealed, stored in a cool, dry place, and ensure good ventilation or exhaust devices in the workspace. Avoid contact with oxides, moisture, etc. to prevent dangerous reactions.

Additional information of chemical compound:

► Molecular Architecture

TTBP·BF₄ consists of a tri-tert-butylphosphine cation [(t-Bu)₃P]⁺ and a tetrafluoroborate anion (BF₄⁻). The three tert-butyl groups (C(CH₃)₃) create significant steric bulk around the phosphorus atom, influencing its reactivity and interaction with transition metals. The BF₄⁻ anion, a weakly coordinating and thermally stable counterion, ensures the compound's stability in both solid and solution states.

► Physical and Chemical Characteristics

Appearance: White crystalline solid.

Solubility: Highly soluble in polar organic solvents (e.g., dichloromethane, methanol) but insoluble in nonpolar solvents (e.g., hexane, toluene) and water.

Thermal Stability: Melts above 260°C, making it suitable for high-temperature reactions.

Hygroscopicity: Sensitive to moisture, requiring storage under inert gas (e.g., nitrogen or argon) at 2–8°C to prevent decomposition.

Safety: Classified as an irritant (H315, H319, H335), necessitating handling in well-ventilated areas with protective equipment (gloves, goggles).

Tri-tert-butylphosphine tetrafluoroborate is an important organic phosphorus compound that has shown broad application prospects in multiple fields. The following is a detailed explanation of its purpose:

Pharmaceutical field

 

This substance can serve as a synthetic intermediate for certain drugs, reacting with other compounds to generate drug molecules with specific pharmacological activities. These drugs may be used to treat various diseases, such as cancer, cardiovascular disease, neurological disorders, etc. However, further literature review or experimental verification is needed to determine which drugs are specifically applied for synthesis. The use of catalysts in drug synthesis can significantly improve reaction rate and yield. As an effective catalyst, it can catalyze certain drug synthesis reactions, simplifying the synthesis steps and reducing production costs. Chiral drugs refer to drug molecules with specific stereoisomers, which have different pharmacological activities and metabolic pathways in the body. As a chiral ligand, this substance can bind with metal catalysts to form chiral catalytic active centers, thereby achieving enantioselective induction. In asymmetric catalytic reactions, this chiral catalytic active center can significantly enhance the enantioselectivity of the product, providing strong support for the synthesis of chiral drugs.

Scientific research field

 

This substance plays an important role in organic synthesis. It can be used as a raw material to generate organic compounds with specific structures and properties by reacting with other compounds. These organic compounds may have unique physical, chemical properties or biological activities, providing new ideas and methods for new drug development, materials science and other fields. Asymmetric catalysis is an important research direction in the field of chemistry, which aims to achieve highly selective synthesis of enantiomers through the selectivity of catalysts. Cross coupling reaction is an important organic synthesis method that can achieve the construction of carbon carbon bonds under mild conditions. Heck coupling reaction is another important organic synthesis method mainly used for constructing carbon carbon double bonds. It can be used for the Heck coupling reaction of unactivated toluene sulfonate vinyl ester with electron deficient olefins. This reaction method has the advantages of mild reaction conditions, high yield, and good tolerance for functional groups, providing new ideas and methods for new drug development, organic material synthesis, and other fields.

Materials Science Field

 

In the field of materials science, its application has also received much attention, as it can be used as a raw material or additive for synthesizing new materials, providing new ideas and methods for research in the field of materials science. By reacting with other compounds, new materials with specific structures and properties are generated. These new materials may have unique physical, chemical properties or biological activities, providing new ideas and methods for research in the field of materials science. It can also be used as an additive and added to certain materials to improve their performance. For example, it can be added to polymers to improve their thermal stability, antioxidant properties, and other properties.

Environmental Science Field

 

In the field of environmental science, its application also has certain potential as a reagent or catalyst for treating or degrading harmful substances in the environment, providing new ideas and methods for environmental protection and pollution control. It can react with certain harmful substances and convert them into harmless or low toxicity substances. This processing method has the advantages of high efficiency and environmental protection, providing new ideas and methods for environmental protection and pollution control. It may also be applied to other fields. For example, in the field of electrochemistry, it can be used as an electrolyte or electrode material; In the field of biological sciences, it can serve as a biomarker or biological probe. However, these applications require further experimental validation and literature review.

Tri-tert-butylphosphine tetrafluoroborate, as a chemical substance, has a wide range of applications in various fields, including medicine, scientific research, chemical synthesis, materials science, and more. However, like many other chemicals, it may also bring some potential side effects or risks. The following is a detailed discussion on its possible side effects:

● Health hazards

● Chemical reaction risk

● Preventive measures
To reduce the potential side effects and risks of tetrafluoroborate tri tert butylphosphine, the following preventive measures can be taken:

Strengthen personal protection

When using tert butyl phosphate tetrafluoroborate, appropriate protective equipment such as masks, gloves, and goggles must be worn. These devices can effectively prevent dust or vapor from entering the human body.

Strictly follow the operating procedures

When using and storing tert butyl phosphate tetrafluoroborate, it is necessary to strictly follow the operating procedures and safety requirements. This includes understanding the chemical properties of the substance, avoiding mixing with incompatible substances, controlling temperature, etc.

Strengthen ventilation measures

When using tert butyl phosphate tetrafluoroborate, appropriate ventilation measures must be taken to ensure air circulation. This can reduce the concentration of dust or vapor in the air and minimize the harm to human health.

Strengthen environmental monitoring

Environmental monitoring should be strengthened when using and storing Tri-tert-butylphosphine tetrafluoroborate. This includes regularly testing indicators such as water quality, soil and air quality, and promptly identifying and addressing environmental pollution issues.

Tri-tert-butylphosphine tetrafluoroborate stands as a testament to the power of molecular design in catalysis. Its unique combination of steric bulk, electronic properties, and stability has made it a linchpin in modern organic synthesis, enabling reactions that were once impractical or inefficient. From pharmaceuticals to materials science, its applications continue to grow, driven by innovations in green chemistry and computational modeling. As research pushes the boundaries of what is possible, TTBP·BF₄ will remain a vital tool for chemists seeking precision, efficiency, and sustainability in their work.

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