Lithium Hydroxide → HCID 11281397, compound

HRID 2377388Notes

Reaction equation

HRID 2377388 reaction equation
C[O:2][C:3](=[O:32])[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([C:11]#[C:12][C:13]2[CH:22]=[C:21]([CH:23]=[CH2:24])[C:20]3[CH:19]([N:25]([CH:27]4[CH2:29][CH2:28]4)[CH3:26])[CH2:18][CH2:17][C:16]([CH3:31])([CH3:30])[C:15]=3[CH:14]=2)=[CH:7][CH:6]=1.[OH-].[Li+]>CO.O1CCCC1>[CH:27]1([N:25]([CH3:26])[CH:19]2[CH2:18][CH2:17][C:16]([CH3:31])([CH3:30])[C:15]3[CH:14]=[C:13]([C:12]#[C:11][C:8]4[CH:7]=[CH:6][C:5]([CH2:4][C:3]([OH:32])=[O:2])=[CH:10][CH:9]=4)[CH:22]=[C:21]([CH:23]=[CH2:24])[C:20]2=3)[CH2:28][CH2:29]1

Participants

5

Reactant 2

HCID 3939Lithium HydroxideHCID 57424240HCID 57424240, compound2×

Product 1

HCID 11281397HCID 11281397, compoundYield 99.8%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of {4-[5-(cyclopropyl-methyl-amino)-8,8-dimethyl-4-vinyl-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl]-phenyl}-acetic acid methyl ester (Intermediate 71, 0.14 g, 0.327 mmol) in methanol (3 mL) and tetrahydrofuran (3 mL) was treated with a 2M solution of lithium hydroxide (1.5 mL, 3 mmol) and the resulting reaction mixture was stirred at ambient temperature for 2 h. The volatiles were evaporated in vacuo, the residue was neutralized with saturated aqueous ammonium chloride solution and extracted with diethyl ether and ethyl acetate. The organic phase was dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford the title product as a white solid (0.135 g, 96%).

Workup

  1. customthe resulting reaction mixture
  2. customThe volatiles were evaporated in vacuo
  3. extractionextracted with diethyl ether and ethyl acetate
  4. dry with materialThe organic phase was dried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. customevaporated in vacuo

Sources & evidence

ORD record
ord-f40584557c544f558b816b5ab9afd6f2
Source dataset
uspto-grants-2008_12
Patent number
US07468391B2

Reaction notes

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