Phosphorus oxychloride → HCID 21081960, compound

HRID 346612Notes

Reaction equation

HRID 346612 reaction equation
C1([NH:7][C:8]([C:10]2[C:11](=[O:30])[N:12]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=3)[C:13]3[C:18]([C:19]=2O)=[CH:17][C:16]([F:21])=[CH:15][CH:14]=3)=O)CCCCC1.P(Cl)(Cl)([Cl:33])=O>>[Cl:33][C:19]1[C:18]2[C:13](=[CH:14][CH:15]=[C:16]([F:21])[CH:17]=2)[N:12]([CH2:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[C:11](=[O:30])[C:10]=1[C:8]#[N:7]

Participants

3

Reactant 2

HCID 24813Phosphorus oxychlorideHCID 69476549HCID 69476549, compound

Product 1

HCID 21081960HCID 21081960, compoundYield 50%

Procedure

A solution of Compound 43 (5.1 g, 12.36 mmol) in 20 ml neat phosphorus oxychloride was heated at 100° C. for 5 h. The solvent was evaporated under reduced pressure. The residue was suspended in ice water and neutralized by solid sodium bicarbonate. The solids formed were filtered, washed by water, and purified by flash chromatography eluting with 1% methanol in dichloromethane to yield 2.05 g (50%) of yellow solids. M.P. 236° C. 1H NMR (DMSO-d6): δ 5.54 (s, 2H), 7.14 (m, 2H), 7.33 (m, 2H), 7.59 (dd, J=4.0, 9.1 Hz, 1H), 7.72 (td, J=2.8, 7.9 Hz, 1H), 7.91 (dd, J=2.8, 8.9 Hz, 1H). EIMS m/z 331 (M+1).

Workup

  1. customThe solvent was evaporated under reduced pressure
  2. customThe solids formed
  3. filtrationwere filtered
  4. washwashed by water
  5. custompurified by flash chromatography
  6. washeluting with 1% methanol in dichloromethane

Sources & evidence

ORD record
ord-9e361111ca564f66af43f63e5bc90a79
Source dataset
uspto-grants-2007_02
Patent number
US07173036B2

Reaction notes

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