Hydrochloric Acid → HCID 12715432, compound

HRID 1975515Notes

Reaction equation

HRID 1975515 reaction equation
[Br:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH:4]=[O:5].[CH2:10]([Mg]Cl)[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.O.Cl>CCOCC>[Br:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH:4]([OH:5])[CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 811292-BromobenzaldehydeHCID 178418336HCID 178418336, compound

Product 1

HCID 12715432HCID 12715432, compoundYield 47.2%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent2×

Procedure

A solution of 2-bromobenzaldehyde (18.50 g) in dry ether (20 ml ) was added dropwise to a stirred solution of benzylmagnesium chloride [prepared from benzyl chloride (12.64 g) and magnesium (2.68 g)] in dry ether (120 ml), a thick precipitate forming during the addition. The mixture was stirred for 1 hour at room temperature then poured into water, acidified with 2M hydrochloric acid, and extracted with ether. The extracts were washed with water, dried, concentrated and chromatographed using dichloromethane and petrol (1:1) as eluant to give 1-(2-bromophenyl)-2-phenylethan-1-ol (10.95 g, 40%) as a white solid, melting point 84°-85° C.

Workup

  1. customa thick precipitate forming during the addition
  2. extractionextracted with ether
  3. washThe extracts were washed with water
  4. customdried
  5. concentrationconcentrated
  6. customchromatographed

Sources & evidence

ORD record
ord-cd1b87c684cd4eeca8ca1b37dfdddfa5
Source dataset
uspto-grants-1994_02
Patent number
US05286894

Reaction notes

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