Methane → HCID 13754284, compound

HRID 231551Notes

Reaction equation

HRID 231551 reaction equation
[H-].[Na+].[C:3]([CH:5]1[C:14]2[C:9](=[C:10]([O:15][CH3:16])[CH:11]=[CH:12][CH:13]=2)[CH:8]=[CH:7][N:6]1S(C1C=CC=CC=1)(=O)=O)#[N:4].C>C1(C)C(C)=CC=CC=1.C(OCC)(=O)C>[C:3]([C:5]1[C:14]2[C:9](=[C:10]([O:15][CH3:16])[CH:11]=[CH:12][CH:13]=2)[CH:8]=[CH:7][N:6]=1)#[N:4]

Participants

6

Reactant 3

HCID 297MethaneHCID 24758Sodium hydrideHCID 137542791,2-Dihydro-5-methoxy-2-(phenylsulfonyl)-1-isoquinolinecarbonitrile

Product 1

HCID 13754284HCID 13754284, compound

Reagents, catalysts & solvents 2

HCID 7237O-XyleneSolventHCID 8857Ethyl AcetateSolvent

Procedure

Sodium hydride (1.2 g of 60% in mineral oil) is added to a stirred suspension of 1-cyano-2-benzenesulfonyl-1,2-dihydro-5-methoxyisoquinoline (10 g) in xylene (100 ml). The reaction mixture is refluxed under nitrogen for 3 hrs, cooled to RT, stirred for an additional hour, and filtered. The filtered solid is washed with xylenes. The filtrate is evaporated in vacuo. The filtered solid is stirred with methylene chloride and aqeuous 5% sodium hydroxide solution. The methylene chloride phase is combined with the residue from the evaporated filtrate and the combined extracts are washed with 5% sodium hydroxide solution, H2O and dried over sodium sulfate. The dried extract is filtered and the filtrate evaporated in vacuo, affording a moist solid which is triturated in hexanes. The triturated solid is filtered, washed with hexanes, and dried, affording a fluffy orange solid, M.P. 166°-175° C. The crude product is dissolved in ethyl acetate, treated with charcoal, filtered and recrystallized from ethyl acetate, affording the desired cyanoisoquinoline as a crystalline solid, M.P. 180°-182° C.

Workup

  1. temperatureThe reaction mixture is refluxed under nitrogen for 3 hrs
  2. filtrationfiltered
  3. washThe filtered solid is washed with xylenes
  4. customThe filtrate is evaporated in vacuo
  5. stirringThe filtered solid is stirred with methylene chloride and aqeuous 5% sodium hydroxide solution
  6. washthe combined extracts are washed with 5% sodium hydroxide solution, H2O
  7. dry with materialdried over sodium sulfate
  8. extractionThe dried extract
  9. filtrationis filtered
  10. customthe filtrate evaporated in vacuo
  11. customaffording a moist solid which
  12. customis triturated in hexanes
  13. filtrationThe triturated solid is filtered
  14. washwashed with hexanes
  15. customdried
  16. customaffording a fluffy orange solid, M.P. 166°-175° C
  17. filtrationfiltered
  18. customrecrystallized from ethyl acetate

Sources & evidence

ORD record
ord-2ab89216e01243e0bd0ab9f815dbaf14
Source dataset
uspto-grants-1989_07
Patent number
US04847264

Reaction notes

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