Hydrochloric Acid → 4'-Cyano-6-methyl-biphenyl-3-carboxylic acid

HRID 1924797Notes

Reaction equation

HRID 1924797 reaction equation
C[O:2][C:3]([C:5]1[CH:6]=[C:7]([C:12]2[CH:17]=[CH:16][C:15]([C:18]#[N:19])=[CH:14][CH:13]=2)[C:8]([CH3:11])=[CH:9][CH:10]=1)=[O:4].[OH-].[Na+].Cl>O1CCOCC1.O>[C:18]([C:15]1[CH:16]=[CH:17][C:12]([C:7]2[C:8]([CH3:11])=[CH:9][CH:10]=[C:5]([C:3]([OH:4])=[O:2])[CH:6]=2)=[CH:13][CH:14]=1)#[N:19]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 594367074'-Cyano-6-methyl-biphenyl-3-carboxylic acid methyl ester

Product 1

HCID 594367094'-Cyano-6-methyl-biphenyl-3-carboxylic acid

Reagents, catalysts & solvents 1

HCID 218864351,4-Dioxane--water (1/1)Solvent

Procedure

To a solution of 4′-cyano-6-methyl-biphenyl-3-carboxylic acid methyl ester 2 (2.56 g, 10.3 mmol) in 1,4-dioxane-H2O (1:1 mixture, 20 ml) is added NaOH (1.22 g, 30.2 mmol)). The reaction is stirred at ambient temperature for 24 hours. To this mixture is added aqueous HCl (1 N, 36 ml) and it is then extracted with ethyl acetate (40 ml×3). The organic layers are combined, dried over anhydrous Na2SO4. The solver is removed. The solid obtained is washed with small amount of acetonitrile and air dried to give 4′-cyano-6-methyl-biphenyl-3-carboxylic acid 3: 1H NMR (DMSO-d6) δ 7.94 (d, 2 H, J=8.0 Hz), 7.84 (dd, 1 H, J1=8.4 Hz, J2=1.2 Hz), 7.75 (d, 1 H, J=1.2 Hz), 7.61 (d, 2 H, J=8.0 Hz), 7.48 (d, 1 H, J=8.4 Hz), 2.29 (s, 3H); LC-MS m/z 238.1 (M+1).

Workup

  1. extractionis then extracted with ethyl acetate (40 ml×3)
  2. dry with materialdried over anhydrous Na2SO4
  3. customThe solver is removed
  4. customThe solid obtained
  5. washis washed with small amount of acetonitrile and air
  6. customdried

Sources & evidence

ORD record
ord-88cca433582b49a1a839d7c68fea0261
Source dataset
uspto-grants-2012_05
Patent number
US08178563B2

Reaction notes

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