The synthesis of the 2,3-difluorobutan-1,4-diol diastereomers

Effect of Mixing Erythritol and Its Fluorine Analogues to Suppress Supercooling

Erythritol is a latent heat storage material suitable for the utilization of unused heat in the medium temperature range of 100-250 °C. However, the supercooling characteristic of sugar alcohols reduces the energy utilization efficiency. In this study, erythritol and its fluorine analogues are mixed to suppress supercooling. Erythritol mixed with 2,3-difluorobutane-1,4-diol at a weight ratio of 1% is determined to be effective in suppressing supercooling. This indicates the possibility of utilizing energy more efficiently.

Late-stage difluoromethylation: concepts, developments and perspective

This review describes the conceptual advances that have led to the multiple difluoromethylation processes making use of well-defined CF₂H sources.

Hydrodifluoromethylation of Alkenes with Difluoroacetic Acid

A facile method for the regioselective hydrodifluoromethylation of alkenes is reported using difluoroacetic acid and phenyliodine(III) diacetate in tetrahydrofuran under visible-light activation. This metal-free approach stands out as it uses inexpensive reagents, does not require a photocatalyst, and displays broad functional group tolerance. The procedure is also operationally simple and scalable, and provides access in one step to high-value building blocks for application in medicinal chemistry.