Dichloromethane → 4'-(Hydroxymethyl)-2'-methylbiphenyl-2-carbonitrile

HRID 2048614Notes

Reaction equation

HRID 2048614 reaction equation
Br[C:2]1[CH:9]=[CH:8][C:5]([CH2:6][OH:7])=[CH:4][C:3]=1[CH3:10].[C:11]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1OB(O)O)#[N:12].ClCCl.C(=O)([O-])[O-].[Na+].[Na+]>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].C1(C)C=CC=CC=1>[OH:7][CH2:6][C:5]1[CH:8]=[CH:9][C:2]([C:14]2[C:13]([C:11]#[N:12])=[CH:18][CH:17]=[CH:16][CH:15]=2)=[C:3]([CH3:10])[CH:4]=1

Participants

8

Reactant 4

HCID 6344DichloromethaneHCID 10340Sodium CarbonateHCID 10987288(4-Bromo-3-methylphenyl)methanolHCID 217080892-Cyano-phenylboric acid

Product 1

HCID 670097314'-(Hydroxymethyl)-2'-methylbiphenyl-2-carbonitrileYield 24.5%

Reagents, catalysts & solvents 3

HCID 74236Tetrabutylammonium BromideCatalystHCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 1140TolueneSolvent

Procedure

A mixture of 4-bromo-3-methylbenzylalcohol (15.16 g), 2-cyanophenylboric acid (14.80 g), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II), dichloromethane adduct (3.08 g), tetrabutylammonium bromide (1.22 g), 2M aqueous sodium carbonate solution (75 mL) and toluene (300 mL) was refluxed under an argon atmosphere for 30 hr. The reaction mixture was concentrated, and the residue was dissolved in ethyl acetate. The obtained ethyl acetate solution was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography to give the title compound as a pale-yellow oil (4.12 g, 24%).

Workup

  1. temperaturewas refluxed under an argon atmosphere for 30 hr
  2. concentrationThe reaction mixture was concentrated
  3. dissolutionthe residue was dissolved in ethyl acetate
  4. washThe obtained ethyl acetate solution was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-9089b78e6b434344917a5df44984bddc
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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