Hydrochloric Acid → 3-[4-(3-Diethylaminopropoxy)benzoyl]-2-phenylbenzothiophene

HRID 268396Notes

Reaction equation

HRID 268396 reaction equation
[Cl-].[Al+3].[Cl-].[Cl-].[C:5]1([C:11]2[S:12][C:13]3[CH:19]=[CH:18][CH:17]=[CH:16][C:14]=3[CH:15]=2)[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1.[CH2:20]([N:22]([CH2:36][CH3:37])[CH2:23][CH2:24][CH2:25][O:26][C:27]1[CH:35]=[CH:34][C:30]([C:31](Cl)=[O:32])=[CH:29][CH:28]=1)[CH3:21].Cl>C(=S)=S.C(Cl)Cl.C(=S)=S>[CH2:36]([N:22]([CH2:20][CH3:21])[CH2:23][CH2:24][CH2:25][O:26][C:27]1[CH:28]=[CH:29][C:30]([C:31]([C:15]2[C:14]3[CH:16]=[CH:17][CH:18]=[CH:19][C:13]=3[S:12][C:11]=2[C:5]2[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=2)=[O:32])=[CH:34][CH:35]=1)[CH3:37]

Participants

7

Reactant 4

HCID 313Hydrochloric Acid2×HCID 6108862-Phenyl-1-benzothiopheneHCID 6451240Aluminum(III) ChlorideHCID 214352614-(3-Diethylaminopropoxy)benzoyl chloride

Product 1

HCID 214352573-[4-(3-Diethylaminopropoxy)benzoyl]-2-phenylbenzothiophene

Reagents, catalysts & solvents 2

HCID 6348Carbon DisulfideSolventHCID 22764793Carbon disulfide methylene chlorideSolvent

Procedure

To a slurry of 4.0 g. (0.03 mol.) of anhydrous aluminum chloride in 30 ml. of carbon disulfide under a nitrogen atmosphere at 5° is added a mixture of 2.1 g. (0.01 mol.) of 2-phenylbenzothiophene in 40 ml. of 1:1 carbon disulfide-methylene chloride containing 3.06 g. (0.01 mol.) of 4-(3-diethylaminopropoxy)benzoyl chloride. After addition, the reaction mixture is warmed to ambient temperature and stirred for 16 hours. Dilute aqueous hydrochloric acid is added to the mixture and the layers are separated. The aqueous phase is re-extracted with chloroform and the organic layers are combined and concentrated to give a residue which is treated with ethereal hydrochloric acid and chromatographed on silica gel with methanol-chloroform as eluant to give the title compound as the corresponding hydrochloride salt.

Workup

  1. additiona mixture of 2.1 g
  2. additionAfter addition
  3. customthe layers are separated
  4. extractionThe aqueous phase is re-extracted with chloroform
  5. concentrationconcentrated
  6. customto give a residue which
  7. customchromatographed on silica gel with methanol-chloroform as eluant

Sources & evidence

ORD record
ord-cbe5e8fbfd6648538389dce7d1173ec7
Source dataset
uspto-grants-1976_03
Patent number
US03947470

Reaction notes

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