Bis(diethylamino)silane(CAS: 27804-64-4)

Bis(diethylamino)silane (CAS: 27804-64-4) is a colorless to slightly yellow liquid with a molecular weight of approximately 184.26 g/mol. It is highly soluble in organic solvents like ethanol and acetone but has limited solubility in water. Chemically, it is moderately reactive, often used in organosilicon chemistry for its ability to form stable bonds with silicon. It has a pKa of about 6.5, indicating its basic nature.

Bis(diethylamino)silane (CAS: 27804-64-4) is typically synthesized by the reaction of hexamethyldisilazane with diethylamine. This process involves the Grignard reaction where the methyl groups from hexamethyldisilazane are replaced by diethylamino groups. The reaction is carried out under anhydrous conditions and is sensitive to moisture and oxygen. High yields can be achieved with appropriate catalysts and reaction conditions.

Bis(diethylamino)silane (CAS: 27804-64-4) is widely used in the pharmaceutical industry for drug synthesis, particularly in the modification of pharmaceutical polymers to improve their properties. It is also used in polymer science for functionalizing polymers, in sensor technologies for surface modification, and in semiconductor manufacturing for passivation layers and surface treatments.

When handling Bis(diethylamino)silane (CAS: 27804-64-4), appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. It is flammable and should be stored away from heat and ignition sources. Handling should be done in a well-ventilated area or fume hood to avoid inhalation. Spills should be cleaned up using appropriate absorbents and the area should be well-ventilated. Always refer to the safety data sheet (SDS) for detailed handling and disposal information.