4-Hydroxybenzyl Alcohol → HCID 60623767, compound

HRID 922296Notes

Reaction equation

HRID 922296 reaction equation
[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH2:6][OH:7])=[CH:4][CH:3]=1.C([O-])([O-])=O.[K+].[K+].Br[CH2:17][C:18]([C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)=[O:19]>C(#N)C>[OH:7][CH2:6][C:5]1[CH:8]=[CH:9][C:2]([O:1][CH2:17][C:18]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[O:19])=[CH:3][CH:4]=1

Participants

5

Conditions

Temperature
80 °C

Procedure

To a 100 mL RB flask fitted with magnetic stirrer was charged 20 mL of acetonitrile. To the stirred solvent was added 4-Hydroxy-benzylalcohol (6.74 g, 25.1 mmol) and K2CO3 (10.4 g, 75.3 mmol). Then it was stirred for 5 min. 2-bromo-1-phenylethanone (5 g, 25.1 mmol) was added. Then RM heated 80° C. for 2 h. After completion of the reaction (reaction monitored by TLC), the RM was concentrated in vacuum to remove the acetonitrile. To the residue was then added 10 mL of water and extracted with ethyl acetate (15 mL×2). The organic layer was washed with saturated brine solution (15 mL), dried over anhydrous Na2SO4 and evaporated to dryness gave the titled compound (5 g, yield: 82.2%); 1H NMR (300 MHz, CDCl3): δ 7.92-7.94 (d, 2H), 7.53-7.58 (t, 1H), 7.41-7.46 (t, 2H), 7.21-7.24 (d, 2H), 6.85-6.86 (d, 2H), 5.22 (s, 2H), 4.55 (s, 2H).

Workup

  1. customTo a 100 mL RB flask fitted with magnetic stirrer
  2. customAfter completion of the reaction (reaction monitored by TLC)
  3. concentrationthe RM was concentrated in vacuum
  4. customto remove the acetonitrile
  5. additionTo the residue was then added 10 mL of water
  6. extractionextracted with ethyl acetate (15 mL×2)
  7. washThe organic layer was washed with saturated brine solution (15 mL)
  8. dry with materialdried over anhydrous Na2SO4
  9. customevaporated to dryness

Sources & evidence

ORD record
ord-cc9b50939f2d45c1b88320fe6b340297
Source dataset
uspto-grants-2016_03
Patent number
US09278915B2

Reaction notes

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