Pyridine → HCID 10529800, compound

HRID 2228549Notes

Reaction equation

HRID 2228549 reaction equation
[C:1]([C:3]1[CH:4]=[C:5]([CH:24]=[CH:25][CH:26]=1)[C:6]([NH:8][C:9]1[C:10]([NH2:23])=[CH:11][C:12]([O:15][Si:16]([CH3:22])([CH3:21])[C:17]([CH3:20])([CH3:19])[CH3:18])=[CH:13][CH:14]=1)=[O:7])#[N:2].N1C=CC=CC=1.[CH:33]([C:36]1[CH:44]=[CH:43][C:39]([C:40](Cl)=[O:41])=[CH:38][CH:37]=1)([CH3:35])[CH3:34]>C(Cl)Cl>[C:1]([C:3]1[CH:4]=[C:5]([CH:24]=[CH:25][CH:26]=1)[C:6]([NH:8][C:9]1[C:10]([NH:23][C:40](=[O:41])[C:39]2[CH:43]=[CH:44][C:36]([CH:33]([CH3:34])[CH3:35])=[CH:37][CH:38]=2)=[CH:11][C:12]([O:15][Si:16]([CH3:21])([CH3:22])[C:17]([CH3:20])([CH3:19])[CH3:18])=[CH:13][CH:14]=1)=[O:7])#[N:2]

Participants

5

Reactant 3

HCID 1049PyridineHCID 27594864-Isopropylbenzoyl chlorideHCID 10499221HCID 10499221, compound

Product 1

HCID 10529800HCID 10529800, compoundYield 83%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent3×

Procedure

To a mixture of N1-(3-cyanobenzoyl)-4-(dimethyl-t-butylsiloxy)-1,2-benzenediamine (2.63 g, 7.17 mmol) and CH2Cl2 (45 mL) at 0° C. was added pyridine (0.65 mL, 8.0 mmol) followed by a solution of the 4-isopropyl benzoyl chloride (10.1 mmol) in CH2Cl2 (90 mL). The reaction was allowed to warm to room temperature and stirred for 10 m. The reaction was diluted with CH2Cl2 (200 mL) and washed with sat. aq. NH4Cl (2×50 mL). The organic layer was MgSO4 dried filtered, and concentrated. The residue was chromatographed (10% EtOAc/hexanes to 20% EtOAc/hexanes) to give the title compound as a solid (3.04 g, 83%); IR(CHCl3): 2962, 1656, 1610, 1513, 1473, 1295 cm−1; NMR(300 MHz, CDCl3): δ0.16 (s, 6H), 0.95 (s, 9H), 1.29 (s, 3H), 1.31 (s, 3H), 3.00 (m, 1H), 6.68 (d, 1H, J=9.0), 6.86 (s, 1H), 7.38 (d, 2H, J=8.1), 7.50 (d, 1H, J=9.0), 7.61 (m, 1H), 7.81 (d, 1H, J=6.3), 7.89 (d, 2H, J=7.1), 8.16 (d, 1H, J=9.3), 8.29 (s, 1H), 8.58 (br s, 1H), 9.40 (br s, 1H); MS(FD): 513.1.

Workup

  1. washwashed with sat. aq. NH4Cl (2×50 mL)
  2. customdried
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was chromatographed (10% EtOAc/hexanes to 20% EtOAc/hexanes)

Sources & evidence

ORD record
ord-91bd8abe32c74fbda12cec3fbeb3ef76
Source dataset
uspto-grants-2002_07
Patent number
US06417200B1

Reaction notes

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