Sodium borohydride → 4-Hydroxymethyl-3-isopropyl-phenyl 1,1,1-trifluoro-methanesulfonate

HRID 427957Notes

Reaction equation

[F:1][C:2]([F:19])([F:18])[S:3]([O:6][C:7]1[CH:12]=[CH:11][C:10]([CH:13]=[O:14])=[C:9]([CH:15]([CH3:17])[CH3:16])[CH:8]=1)(=[O:5])=[O:4].[BH4-].[Na+]>CO>[F:18][C:2]([F:1])([F:19])[S:3]([O:6][C:7]1[CH:12]=[CH:11][C:10]([CH2:13][OH:14])=[C:9]([CH:15]([CH3:17])[CH3:16])[CH:8]=1)(=[O:4])=[O:5]

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 4-formyl-3-isopropyl-phenyl 1,1,1-trifluoro-methansulfonate (Intermediate 148, 540.0 mg, 1.82 mmols) in 7 mL MeOH at 0° C. was added NaBH4 (72.0 mg, 1.91 mmols). After stirring 2 hours at 0° C. the reaction was carefully quenched with H2O and extracted with Et2O. The combined organic layers were washed with H2O and saturated aqueous NaCl, dried (MgSO4), and concentrated under reduced pressure. The title compound was isolated by column chromatography (5-10% EtOAc-hexanes) as a colorless oil, 355.0 mg (90%).

Workup

customwas carefully quenched with H2O
extractionextracted with Et2O
washThe combined organic layers were washed with H2O and saturated aqueous NaCl
dry with materialdried (MgSO4)
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-013f11117feb4a5799dcbaa3510c3c8b
Source dataset: uspto-grants-2001_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06313107B1

Reaction notes

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