Lithium hydroxide, monohydrate → HCID 15870724, compound

HRID 495953Notes

Reaction equation

HRID 495953 reaction equation
[CH3:1][C:2]1([CH3:35])[CH2:11][CH:10]=[C:9]([C:12]2[CH:17]=[CH:16][C:15]([C:18]([CH3:21])([CH3:20])[CH3:19])=[CH:14][CH:13]=2)[C:8]2[CH:7]=[C:6]([C:22]#[C:23][C:24]3[CH:34]=[CH:33][C:27]([C:28]([O:30]CC)=[O:29])=[CH:26][CH:25]=3)[CH:5]=[CH:4][C:3]1=2.O[Li].O>C1COCC1.O>[CH3:1][C:2]1([CH3:35])[CH2:11][CH:10]=[C:9]([C:12]2[CH:17]=[CH:16][C:15]([C:18]([CH3:19])([CH3:20])[CH3:21])=[CH:14][CH:13]=2)[C:8]2[CH:7]=[C:6]([C:22]#[C:23][C:24]3[CH:34]=[CH:33][C:27]([C:28]([OH:30])=[O:29])=[CH:26][CH:25]=3)[CH:5]=[CH:4][C:3]1=2

Participants

4

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 22323755HCID 22323755, compound2×

Product 1

HCID 15870724HCID 15870724, compound

Reagents, catalysts & solvents 1

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

Procedure

A solution of 80.0 mg (0.173 mmol) of ethyl 4-[(5,6-dihydro-5,5-dimethyl-8-(4-(1,1-dimethylethyl)phenyl)-2-naphthalenyl)ethynyl]benzoate (Compound 6) and 18.1 mg (0.432 mmol) of LiOH—H2O in 6 ml of THF/water (3:1, v/v), was stirred overnight at room temperature. The reaction mixture was extracted with hexanes, and the remaining aqueous layer acidified with 1M HCl, and then extracted with EtOAc. The combined organic layers Were dried over Na2O4 and concentrated in vacuo to give the title compound as a colorless solid. 1H NMR (d6-DMSO): δ 7.82 (2H, d, J=8.2 Hz), 7.44 (6H, m), 7.25 (2H, d, J=8.3 Hz), 7.02 (1H, s), 6.01 (1H, t, J=4.6 Hz), 2.32 (2H, d, J=4.7 Hz), 1.32 (9H, s), 1.29 (6H, s).

Workup

  1. extractionThe reaction mixture was extracted with hexanes
  2. extractionextracted with EtOAc
  3. customThe combined organic layers Were dried over Na2O4
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-77ec43a1547443989184ca643f6893ea
Source dataset
uspto-grants-2005_09
Patent number
US06942980B1

Reaction notes

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