Water → (4,4-Difluorocyclohexyl)methanol

Temperature

0 °C

To a reaction mixture of 4,4-difluorocyclohexanecarboxylic acid ethyl ester (7.1 g, 37 mmol) in THF (50 mL) cooled to 0° C. was added dropwise 2.0 M lithium tetrahydroaluminate in THF (18.5 mL) over 10 min. The reaction mixture was stirred at 0° C. for 1 h. Water (5 mL) was added dropwise, followed by 1.0N NaOH (5 mL). The reaction mixture was filtered through Celite, THF was evaporated, and the resulting aqueous solution was diluted with brine (50 mL) and extracted with ethyl acetate (50 mL). The organic layer was collected, dried over anhydrous sodium sulfate, filtered, and concentrated to give the title compound as a clear oil (5.6 g) which was used without further purification.

1. filtrationThe reaction mixture was filtered through Celite, THF
2. customwas evaporated
3. additionthe resulting aqueous solution was diluted with brine (50 mL)
4. extractionextracted with ethyl acetate (50 mL)
5. customThe organic layer was collected
6. dry with materialdried over anhydrous sodium sulfate
7. filtrationfiltered
8. concentrationconcentrated

ORD record

ord-93d380babc0149ae8b4e5c23458b23d3

Source dataset

uspto-grants-2011_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07902220B2