Lithium hydroxide, monohydrate → HCID 22323739, compound

HRID 324204Notes

Reaction equation

HRID 324204 reaction equation
[CH3:1][C:2]1([CH3:32])[CH2:11][CH:10]=[C:9]([C:12]2[CH:13]=[CH:14][C:15]([CH3:18])=[N:16][CH:17]=2)[C:8]2[CH:7]=[C:6]([C:19]#[C:20][C:21]3[CH:31]=[CH:30][C:24]([C:25]([O:27]CC)=[O:26])=[CH:23][CH:22]=3)[CH:5]=[CH:4][C:3]1=2.O[Li].O>C1COCC1.O>[CH3:1][C:2]1([CH3:32])[CH2:11][CH:10]=[C:9]([C:12]2[CH:13]=[CH:14][C:15]([CH3:18])=[N:16][CH:17]=2)[C:8]2[CH:7]=[C:6]([C:19]#[C:20][C:21]3[CH:22]=[CH:23][C:24]([C:25]([OH:27])=[O:26])=[CH:30][CH:31]=3)[CH:5]=[CH:4][C:3]1=2

Participants

4

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 22323753HCID 22323753, compound2×

Product 1

HCID 22323739HCID 22323739, compound

Reagents, catalysts & solvents 1

HCID 21881883Oxolane--water (1/1)Solvent

Procedure

A solution of 81.7 mg (0.194 mmol) of ethyl 4-[(5,6-dihydro-5,5-dimethyl-8-(2-methyl-5-pyridyl)-2-naphthalenyl)ethynyl]benzoate (Compound 12) and 40.7 mg (0.969 mmol) of LiOH—H2O in 3 ml of THF/water (3:1, v/v), was stirred overnight at room temperature. The reaction was quenched by the addition of saturated aqueous NH4Cl and extracted with EtOAc. The combined organic layers were washed with water and brine, dried over Na2SO4 and concentrated in vacuo to give the title compound as a colorless solid. 1H NMR (d6-DMSO): δ 8.41 (IH, d, J=1.9 Hz), 7.90 (2H, d, J=8.3 Hz), 7.63 (1H, dd, J =2.3, 7.9 Hz), 7.59 (2H, d, J=8.3 Hz), 7.49 (2H, m), 7.33 (1H, d, J=7.8 Hz), 6.95 (1H, s), 6.11 (1H, t, J=4.5 Hz), 2.52 (3H, s), 2.37 (2H, d, J=4.6 Hz), 1.31 (6H, s).

Workup

  1. customThe reaction was quenched by the addition of saturated aqueous NH4Cl
  2. extractionextracted with EtOAc
  3. washThe combined organic layers were washed with water and brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-f1f3afafcc6c49d385c8208ccf8f2bc0
Source dataset
uspto-grants-2001_04
Patent number
US06218128B1

Reaction notes

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