Sodium Hydroxide → HCID 86678080, compound

HRID 2369763Notes

Reaction equation

HRID 2369763 reaction equation
[CH3:1][O:2][CH2:3][CH2:4][O:5][CH2:6][CH2:7][O:8][CH2:9][CH2:10][C:11]1([CH2:36][CH2:37][O:38][CH2:39][CH2:40][O:41][CH2:42][CH2:43][O:44][CH3:45])[C:23]2[CH:22]=[C:21]([C:24]#[C:25]C(C)(O)C)[CH:20]=[CH:19][C:18]=2[C:17]2[C:12]1=[CH:13][C:14]([C:30]#[C:31]C(C)(O)C)=[CH:15][CH:16]=2.[OH-].[Na+]>C1(C)C=CC=CC=1.CC(O)C>[C:30]([C:14]1[CH:15]=[CH:16][C:17]2[C:18]3[C:23](=[CH:22][C:21]([C:24]#[CH:25])=[CH:20][CH:19]=3)[C:11]([CH2:10][CH2:9][O:8][CH2:7][CH2:6][O:5][CH2:4][CH2:3][O:2][CH3:1])([CH2:36][CH2:37][O:38][CH2:39][CH2:40][O:41][CH2:42][CH2:43][O:44][CH3:45])[C:12]=2[CH:13]=1)#[CH:31]

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 67248833HCID 67248833, compound

Product 1

HCID 86678080HCID 86678080, compoundYield 58.2%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 3776IsopropanolSolvent

Procedure

To a solution of 4,4′-[9,9-bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl]-9H-fluorene-2,7-diyl]bis(2-methyl-3-butyn-2-ol) (0.363 g, 0.58 mmol) in 9 mL of toluene and 2 mL of i-PrOH, was added solid NaOH (0.15 g, 3.75 mmol). The mixture was heated under reflux for 1.5 h. After cooling, NaOH was filtered off and the solvents were evaporated and the residue was purified by column chromatography on silica gel (CH2Cl2/AcOEt 60:40) to yield 0.171 g (58%) of 2,7-diethynyl-9,9-bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl]-9H-fluorene, mp 68° C.; 1H NMR (CDCl3) δ 2.37 (t, 4H, J=7.8 Hz), 2.74 (t, 4H, J=7.2 Hz), 3.17 (s, 2H), 3.20 (m, 4H), 3.35 (s, 6H), 3.39 (m, 4H), 3.54-3.47 (m, 8H), 7.50 (dd, 2H, J=7.8 Hz, J=1.3 Hz), 7.55 (d, 2H, J=1.3 Hz). 7.63 (d, 2H, J=7.8 Hz); 13C NMR (CDCl3) δ 39.5, 51.3, 59.1, 65.9, 66.8, 70.0, 70.4, 71.8, 77.9, 84.1, 120.1, 121.2, 127.0, 131.7, 140.2, 149.3. Anal. Calcd for C31H38O6 (506.63): C, 73.49; H, 7.56. Found: C, 73.59; H, 7.64.

Workup

  1. temperatureThe mixture was heated
  2. temperatureunder reflux for 1.5 h
  3. temperatureAfter cooling
  4. filtrationNaOH was filtered off
  5. customthe solvents were evaporated
  6. customthe residue was purified by column chromatography on silica gel (CH2Cl2/AcOEt 60:40)

Sources & evidence

ORD record
ord-3975aac985144bf5acb15e4947bfc054
Source dataset
uspto-grants-2014_04
Patent number
US08709747B2

Reaction notes

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