Hydrochloric Acid → (+)-2,2-Dibutyl-5-(2-quinolylmethoxy)-1,2,3,4-tetrahydro-1-naphthol hydrochloride

HRID 727819Notes

Reaction equation

HRID 727819 reaction equation
[CH2:1]([C:5]1([CH2:28][CH2:29][CH2:30][CH3:31])[CH2:14][CH2:13][C:12]2[C:7](=[CH:8][CH:9]=[CH:10][C:11]=2[O:15][CH2:16][C:17]2[CH:26]=[CH:25][C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[N:18]=2)[CH:6]1[OH:27])[CH2:2][CH2:3][CH3:4].[ClH:32]>C(OCC)(=O)C>[ClH:32].[CH2:1]([C:5]1([CH2:28][CH2:29][CH2:30][CH3:31])[CH2:14][CH2:13][C:12]2[C:7](=[CH:8][CH:9]=[CH:10][C:11]=2[O:15][CH2:16][C:17]2[CH:26]=[CH:25][C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[N:18]=2)[CH:6]1[OH:27])[CH2:2][CH2:3][CH3:4]

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 164102FR 110302

Product 1

HCID 19990531(+)-2,2-Dibutyl-5-(2-quinolylmethoxy)-1,2,3,4-tetrahydro-1-naphthol hydrochloride

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent2×

Procedure

To a solution of (+)-2,2-dibutyl-5-(2-quinolylmethoxy)-1,2,3,4-tetrahydro-1-naphthol (14.5 g) in ethyl acetate (145 ml) was added 3N-hydrogen chloride solution in ethyl acetate (20 ml) in one portion with vigorous stirring at ambient temperature. After stirring for 20 minutes, the precipitates were collected by filtration and washed with ethyl acetate. The pale yellow solid was recrystallized from acetonitrile to yield (+)-2,2-dibutyl-5-(2-quinolylmethoxy)-1,2,3,4-tetrahydro-1-naphthol hydrochloride (11.605 g) as white solid.

Workup

  1. stirringAfter stirring for 20 minutes
  2. filtrationthe precipitates were collected by filtration
  3. washwashed with ethyl acetate
  4. customThe pale yellow solid was recrystallized from acetonitrile

Sources & evidence

ORD record
ord-1a423f7f0a7d45619b33a421a57653f7
Source dataset
uspto-grants-1991_09
Patent number
US05045548

Reaction notes

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