Tributyl(ethynyl)stannane(CAS: 994-89-8)

Tributyl(ethynyl)stannane is a colorless to pale yellow liquid with a strong ethynyl odor. It has a molecular weight of 252.26 g/mol and a boiling point of 103-104°C. The compound is poorly soluble in water but soluble in organic solvents such as ethanol and acetone. It is highly reactive and prone to hydrolysis and elimination reactions.

Tributyl(ethynyl)stannane is synthesized via a reaction between triethyltin chloride and ethynyl bromide in the presence of a base like triethylamine. The reaction provides a high yield of the product with good selectivity. Commonly utilized solvents include toluene or dichloromethane.

Tributyl(ethynyl)stannane is primarily used in the synthesis of various organic compounds, particularly in the preparation of organostannane derivatives. It finds applications in pharmaceuticals, where it is used as an intermediate, and in the production of functionalized polymers and semiconductors. It is also used in the development of sensors and as a reagent in some catalytic processes.

When handling Tributyl(ethynyl)stannane, users should wear appropriate personal protective equipment (PPE) including gloves, safety goggles, and a lab coat. This compound should be used in a well-ventilated area or a fume hood due to its strong ethynyl odor and potential for reactive behavior. Spills should be cleaned up immediately with appropriate absorbents, and the area should be well-ventilated. Always refer to the Safety Data Sheet (SDS) for detailed safety guidelines and emergency procedures.