5-((Tert-butyldimethylsilyl)oxy)pentan-1-ol → HCID 59750708, compound

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Reaction Steps

In toluene (30 ml) was dissolved the 2-[(4-chlorophenyl)sulfonylmethyl]-1,4-difluorobenzene (0.94 g, 3.1 mmol) obtained in Example 5, followed by the addition of 5-(t-butyldimethylsilyloxy)-1-pentanol (1.1 ml, 4.6 mmol) and cyanomethylenetri-n-butylphosphorane (1.0 g, 4.1 mmol). The resulting mixture was heated under reflux for 14 hours under an argon atmosphere. The reaction mixture was allowed to cool down and then concentrated under reduced pressure. The residue thus obtained was purified by silica gel chromatography (hexane:ethyl acetate=15:1), whereby the title compound (1.4 g, 87%) was obtained as a colorless oil.

Provenance & Evidence