Lithium Chloride → 2-(2-methylallyl)-4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulene-1-carbonitrile

HRID 1773933Notes

Reaction equation

HRID 1773933 reaction equation
I[C:2]1[N:11]=[C:10]2[N:4]([CH2:5][CH2:6][C:7]3[CH:23]=[CH:22][CH:21]=[CH:20][C:8]=3[CH:9]2[O:12][CH:13]2[CH2:18][CH2:17][N:16]([CH3:19])[CH2:15][CH2:14]2)[C:3]=1[C:24]#[N:25].[CH2:26]([Sn](CCCC)(CCCC)CCCC)[C:27](=[CH2:29])[CH3:28].[K].[Li+].[Cl-]>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:28][C:27](=[CH2:26])[CH2:29][C:2]1[N:11]=[C:10]2[N:4]([CH2:5][CH2:6][C:7]3[CH:23]=[CH:22][CH:21]=[CH:20][C:8]=3[CH:9]2[O:12][CH:13]2[CH2:18][CH2:17][N:16]([CH3:19])[CH2:15][CH2:14]2)[C:3]=1[C:24]#[N:25]

Participants

6

Reactant 3

HCID 433294Lithium ChlorideHCID 867039962-iodo-4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulene-1-carbonitrileHCID 86704025Potassium methallyltributyltin

Product 1

HCID 867040242-(2-methylallyl)-4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulene-1-carbonitrile

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
110 °C

Procedure

To a solution of 2-iodo-4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulene-1-carbonitrile (example 221) (107 mg, 0.239 mmole) in DMF (4 mL) are added potassium methallyltributyltin (331 mg, 0.95 mmole), Pd(PPh3)4 (28 mg, 0.025 mmole), LiCl (51 mg, 1.30 mmole). The flask is evacuated and filled with argon. The reaction mixture is heated at 110° C. for 5 hours. AcOEt and water are added, as well as a 10% KF solution. The aqueous phase is extracted with AcOEt. The organic phase is washed with 0.5N HCl. The HCl phase is made alkaline with 1H NaOH and the aqueous phase is extracted with AcOEt. The organic phase is dried over MgSO4, filtered and the solvent removed under reduced pressure. The residue is purified by silica gel chromatography eluting with (CH2Cl2:MeOH) (100:0) to (95:5) to give 2-(2-methylallyl)-4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulene-1-carbonitrile.

Workup

  1. customThe flask is evacuated
  2. additionfilled with argon
  3. additionAcOEt and water are added
  4. extractionThe aqueous phase is extracted with AcOEt
  5. washThe organic phase is washed with 0.5N HCl
  6. extractionthe aqueous phase is extracted with AcOEt
  7. dry with materialThe organic phase is dried over MgSO4
  8. filtrationfiltered
  9. customthe solvent removed under reduced pressure
  10. customThe residue is purified by silica gel chromatography
  11. washeluting with (CH2Cl2:MeOH) (100:0) to (95:5)

Sources & evidence

ORD record
ord-c7aa1789845246888c5f997da2cc3bf9
Source dataset
uspto-grants-2016_02
Patent number
US09255101B2

Reaction notes

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