1,3-Propanediol → 3-[3-(5-Isoquinolinylsulfonyloxy)-5-methylphenoxy]propanol

HRID 1977946Notes

Reaction equation

HRID 1977946 reaction equation
[CH:1]1[C:10]2[C:5](=[C:6]([S:11]([O:14][C:15]3[CH:16]=[C:17]([OH:22])[CH:18]=[C:19]([CH3:21])[CH:20]=3)(=[O:13])=[O:12])[CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][N:2]=1.C(P(CCCC)CCCC)CCC.[CH2:36](O)[CH2:37][CH2:38][OH:39].N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>O1CCCC1.CCCCCC>[CH:1]1[C:10]2[C:5](=[C:6]([S:11]([O:14][C:15]3[CH:16]=[C:17]([CH:18]=[C:19]([CH3:21])[CH:20]=3)[O:22][CH2:36][CH2:37][CH2:38][OH:39])(=[O:12])=[O:13])[CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][N:2]=1

Participants

7

Reactant 4

HCID 104421,3-PropanediolHCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 227225063-(5-Isoquinolinylsulfonyloxy)-5-methylphenol

Product 1

HCID 227225083-[3-(5-Isoquinolinylsulfonyloxy)-5-methylphenoxy]propanolYield 83%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8058HexaneSolvent

Procedure

To a solution of 3-(5-isoquinolinylsulfonyloxy)-5-methylphenol (630 mg, 2.0 mmol), as prepared in the preceding step, tri-n-butylphosphine (607 mg, 3.0 mmol), and 1,3-propanediol (760 mg, 10 mmol) in tetrahydrofuran (20 mL) was added 1,1′-(azodicarbonyl)dipiperidine (757 mg, 3.0 mmol). The mixture was stirred at room temperature overnight. Hexane (30 mL) was added to the mixture, and the precipitates were removed by filtration. The filtrate was evaporated in vacuo, the residue was purified by flash column chromatography (4:1 ethyl acetate/CH2Cl2) to give the title compound as a colorless oil (620 mg, 82%). 1H-NMR (300 MHz, CDCl3) δ9.41 (s, 1H), 8.80 (d, J=6.1 Hz, 1H), 8.54 (d, J=6.1 Hz, 1H), 8.33 (d, J=7.2 Hz, 1H), 8.29 (d, J=7.6 Hz, 1H), 7.67 (t, J=7.7 Hz, 1H), 6.56 (s, 1H), 6.29 (s, 1H), 6.24 (s, 1H), 3.89 (t, J=6.1 Hz, 2H), 3.75 (t, J=6.0 Hz, 2H), 2.16 (s, 3H), 2.05 (m, 2H), 1.90 (br s, 1H).

Workup

  1. customthe precipitates were removed by filtration
  2. customThe filtrate was evaporated in vacuo
  3. customthe residue was purified by flash column chromatography (4:1 ethyl acetate/CH2Cl2)

Sources & evidence

ORD record
ord-225b5f9783c34eae8231b09c1e018b30
Source dataset
uspto-grants-2001_05
Patent number
US06235778B1

Reaction notes

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