Hydrochloric Acid → HCID 12017641, compound

HRID 1955528Notes

Reaction equation

HRID 1955528 reaction equation
[CH3:1][C:2]1([CH3:33])[CH2:11][CH:10]=[C:9]([C:12]2[CH:17]=[C:16]([CH3:18])[CH:15]=[C:14]([CH3:19])[CH:13]=2)[C:8]2[CH:7]=[C:6]([C:20]#[C:21][C:22]3[CH:32]=[CH:31][C:25]([C:26]([O:28]CC)=[O:27])=[CH:24][CH:23]=3)[CH:5]=[CH:4][C:3]1=2.[OH-].[Na+].Cl>CCO.C1COCC1>[CH3:1][C:2]1([CH3:33])[CH2:11][CH:10]=[C:9]([C:12]2[CH:13]=[C:14]([CH3:19])[CH:15]=[C:16]([CH3:18])[CH:17]=2)[C:8]2[CH:7]=[C:6]([C:20]#[C:21][C:22]3[CH:23]=[CH:24][C:25]([C:26]([OH:28])=[O:27])=[CH:31][CH:32]=3)[CH:5]=[CH:4][C:3]1=2

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 15870946HCID 15870946, compound2×

Product 1

HCID 12017641HCID 12017641, compound

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of ethyl 4-[(5,6-dihydro-5,5-dimethyl-8-(3,5-dimethylphenyl)-2-naphthalenyl)ethynyl]-benzoate (Compound 4) 90.0 mg (0.207 mmol) in 3 ml of EtOH and 2 ml of THF was added 48.0 mg (1.20 mmol, 1.20 ml) of NaOH (1.0M aqueous solution). The solution was heated to 50° C. for 2 hours, cooled to room temperature, and acidified with 10% HCl. Extraction with EtOAc, followed by drying over Na2SO4, and removal of the solvents under reduced pressure afforded the title compound as a colorless solid. 1H NMR (DMSO): δ7.90 (2H, d, J=8.2 Hz), 7.59 (2H, d, J=8.2 Hz), 7.45 (2H, s), 7.00 (1H, s), 6.97 (1H, s), 5.97 (1H, t, J=4.5 Hz), 2.31 (2H, d, J=4.5 Hz), 2.30 (6H, s), 1.29 (6H, s).

Workup

  1. temperaturecooled to room temperature
  2. extractionExtraction with EtOAc
  3. dry with materialby drying over Na2SO4, and removal of the solvents under reduced pressure

Sources & evidence

ORD record
ord-2ac019d6d8764c75a5b58eedf9fa89f7
Source dataset
uspto-grants-1998_07
Patent number
US05776699

Reaction notes

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