Tetrafluoroboric acid-diethyl ether complex, 50-55% w/w HBF4

Tetrafluoroboric acid-diethyl ether acts as an effective catalyst used for various carbohydrate protection reactions. It is also used as a catalyst in the preparation of 4-fluoropiperidines by reaction between aldehydes and N-tosyl homoallylamine.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.