Ethanol → HCID 86748803, compound

HRID 1647967Notes

Reaction equation

HRID 1647967 reaction equation
[C:1]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[CH:20]=[C:21]([P:26](=[O:29])([OH:28])[OH:27])[P:22](=[O:25])([OH:24])[OH:23])#[C:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH3:13].[O-]CC.[Na+:33].C(O)C>O1CCCC1>[C:1]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[CH:20]=[C:21]([P:26](=[O:27])([O-:28])[O-:29])[P:22](=[O:23])([OH:24])[OH:25])#[C:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH3:13].[Na+:33].[Na+:33]

Participants

5

Reactant 3

HCID 702EthanolHCID 2723922Sodium ethoxideHCID 19033956HCID 19033956, compound

Product 1

HCID 86748803HCID 86748803, compoundYield 94%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

[2-[2-(1-Tridecynyl)phenyl]ethenylidene]bisphosphonic acid (0.101 g, 0.228 mmol) prepared according to Example 10 was dissolved in dry tetrahydrofuran (10 ml) and stirred while sodium ethoxide in ethanol (0.177M, 2.58 ml, 0.457 mmol) was added. After 20 minutes, the solvent was removed under reduced pressure to give a yellowish solid. This solid was pulverized and washed successively with dry ether, tetrahydrofuran, acetone, acetonitrile, and ethanol, then dried on the vacuum line, 0.104 g, 0.214 mmol, 94% yield. 1H NMR (D2O) ∂ 0.74 (m, 3H), 1.17 (m, 14H), 1.35 (m, 2H), 1.52 (m, 2H), 2.39 (t, J=7.1H, 2H), 7.24 (m, 2H), 7.37 (m, 1H), 7.92 (dd+m, J=43.8, 27.0 Hz, 2H); FAB mass spectrum m/z 443 (M-2Na+3H)+, 465 (M-Na+2H)+, 487 (M+H)+.

Workup

  1. additionwas added
  2. customthe solvent was removed under reduced pressure
  3. customto give a yellowish solid
  4. washwashed successively with dry ether, tetrahydrofuran, acetone, acetonitrile, and ethanol
  5. customdried on the vacuum line, 0.104 g, 0.214 mmol, 94% yield

Sources & evidence

ORD record
ord-bc6b1fe3057244abaf5606f7ca8f0d35
Source dataset
uspto-grants-1995_07
Patent number
US05434288

Reaction notes

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