Water → Ethyl 4'-(3-dimethylaminopropoxy)-3'-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate

HRID 253491Notes

Reaction equation

HRID 253491 reaction equation
Cl.[CH3:2][N:3]([CH3:8])[CH2:4][CH2:5][CH2:6]Cl.C(=O)([O-])[O-].[K+].[K+].[OH:15][C:16]1[CH:21]=[CH:20][C:19]([C:22]2[CH:27]=[CH:26][C:25]([C:28]([O:30][CH2:31][CH3:32])=[O:29])=[CH:24][CH:23]=2)=[CH:18][C:17]=1[C:33]1[CH:42]=[CH:41][C:40]2[C:39]([CH3:44])([CH3:43])[CH2:38][CH2:37][C:36]([CH3:46])([CH3:45])[C:35]=2[CH:34]=1.O>CC(C)=O>[CH3:2][N:3]([CH3:8])[CH2:4][CH2:5][CH2:6][O:15][C:16]1[CH:21]=[CH:20][C:19]([C:22]2[CH:23]=[CH:24][C:25]([C:28]([O:30][CH2:31][CH3:32])=[O:29])=[CH:26][CH:27]=2)=[CH:18][C:17]=1[C:33]1[CH:42]=[CH:41][C:40]2[C:39]([CH3:44])([CH3:43])[CH2:38][CH2:37][C:36]([CH3:45])([CH3:46])[C:35]=2[CH:34]=1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 943083-(Dimethylamino)propyl chloride hydrochlorideHCID 57552328Ethyl 4'-hydroxy-3'-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate

Product 1

HCID 11306847Ethyl 4'-(3-dimethylaminopropoxy)-3'-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylateYield 81.9%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

440 mg (2.78 mmol) of 3-dimethylaminopropyl chloride hydrochloride and 970 mg (7 mmol) of potassium carbonate are added to a solution of 1 g (2.33 mmol) of ethyl 4′-hydroxy-3′-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate in 50 ml of acetone. The reaction mixture is stirred for 48 hours at reflux. The reaction is stopped by adding water, and is then extracted with ethyl acetate. The organic phases are combined and dried over sodium sulfate. The solvents are evaporated off and the residue is then purified by chromatography on silica gel (eluent: 90/10 ethyl acetate/methanol). 980 mg of ethyl 4′-(3-dimethylaminopropoxy)-3′-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate are obtained in the form of a yellow oil (yield=82%).

Workup

  1. temperatureat reflux
  2. extractionis then extracted with ethyl acetate
  3. dry with materialdried over sodium sulfate
  4. customThe solvents are evaporated off
  5. customthe residue is then purified by chromatography on silica gel (eluent: 90/10 ethyl acetate/methanol)

Sources & evidence

ORD record
ord-8b56a52b6a194f9e96cb35afea889f17
Source dataset
uspto-grants-2011_01
Patent number
US07872026B2

Reaction notes

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