Tetrahydrofuran → HCID 57705999, compound

HRID 2098918Notes

Reaction equation

HRID 2098918 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[CH:15]=[CH:14][C:13]([CH2:16][OH:17])=[CH:12][C:11]=1[C:18](=[O:23])[C:19]([CH3:22])([CH3:21])[CH3:20].C1COCC1.[H-].[H-].[H-].[H-].[Li+].[Al+3].[OH-].[Na+]>>[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[CH:15]=[CH:14][C:13]([CH2:16][OH:17])=[CH:12][C:11]=1[CH:18]([OH:23])[C:19]([CH3:21])([CH3:20])[CH3:22]

Participants

5

Reactant 4

HCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 21226445Aluminium lithium hydrideHCID 574675911-(2'-Fluoro-4-(hydroxymethyl)-5'-(methyloxy)-1,1'-biphenyl-2-yl)-2,2-dimethyl-1-propanone

Product 1

HCID 57705999HCID 57705999, compoundYield 75%

Procedure

To a stirred solution of 1-(2′-fluoro-4-(hydroxymethyl)-5′-(methyloxy)-1,1′-biphenyl-2-yl)-2,2-dimethyl-1-propanone T9.6 (2.00 g, 6.3 mmol) in THF (63 mL, 6.3 mmol) at 0° C. was added LAH (1.0 M in THF, 13 mL, 13 mmol). Stirring was continued for 2 hours. 1N NaOH (aq) was added to the mixture, and the resulting mixture was extracted with EtOAc. The combined organic layers were dried over MgSO4, filtered, and concentrated in vacuo to give the residue. The residue was purified by silica gel flash chromatography (0-30% EtOAc/hexane) to afford 1-(2′-fluoro-4-(hydroxymethyl)-5′-(methyloxy)-1,1′-biphenyl-2-yl)-2,2-dimethyl-1-propanol T9.7 (1.50 g, 75% yield) as a white solid. MS ESI (pos.) m/e: 336.2 (M+H2O)+. Chiral separation of T9.7 was accomplished on Chiracel-OD (4% IPA in hexane) to provide T9.8 and T9.9. Analytical column (Chiracel-OD (4% IPA in hexane, 45 min run) peak 1—18.5 mins, peak 2—24.5 mins).1

Workup

  1. extractionthe resulting mixture was extracted with EtOAc
  2. dry with materialThe combined organic layers were dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customto give the residue
  6. customThe residue was purified by silica gel flash chromatography (0-30% EtOAc/hexane)

Sources & evidence

ORD record
ord-c2a3125ec8584504b8cc01bc16d4c101
Source dataset
uspto-grants-2013_05
Patent number
US08450522B2

Reaction notes

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