Sodium hexamethyidisilazane → HCID 68544666, compound

HRID 2374431Notes

Reaction equation

HRID 2374431 reaction equation
C[Si](C)(C)N[Si](C)(C)C.[Na].[NH2:11][C:12]1[CH:17]=[CH:16][N:15]=[C:14]2[O:18][CH2:19][O:20][C:13]=12.Cl[C:22]1[C:31]2[C:26](=[CH:27][C:28]([O:34][CH2:35][CH2:36][Cl:37])=[C:29]([O:32][CH3:33])[CH:30]=2)[N:25]=[CH:24][N:23]=1>C1COCC1>[Cl:37][CH2:36][CH2:35][O:34][C:28]1[CH:27]=[C:26]2[C:31]([C:22]([NH:11][C:12]3[CH:17]=[CH:16][N:15]=[C:14]4[O:18][CH2:19][O:20][C:13]=34)=[N:23][CH:24]=[N:25]2)=[CH:30][C:29]=1[O:32][CH3:33]

Participants

5

Reactant 3

HCID 45051731Sodium hexamethyidisilazaneHCID 450794752H-[1,3]Dioxolo[4,5-b]pyridin-7-amineHCID 596829074-Chloro-7-(2-chloroethoxy)-6-methoxyquinazoline

Product 1

HCID 68544666HCID 68544666, compoundYield 65.6%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

Sodium hexamethyldisilazane (1M solution in THF; 2 ml) was added dropwise to a mixture of 4-amino-2,3-methylenedioxypyridine (0.138 g), 4-chloro-7-(2-chloroethoxy)-6-methoxyquinazoline (0.272 g) and THF (5 ml) that had been cooled to 0° C. The mixture was stirred at 0° C. for 1 hour. The resultant mixture was allowed to warm to ambient temperature and was stirred for 2 hours. The reaction was quenched by the addition of glacial acetic acid (0.12 ml). The solvents were evaporated and the residue was partitioned between methylene chloride and an aqueous ammonium hydroxide solution. The organic layer was collected and concentrated to a small volume. Diethyl ether was added and a precipitate formed. The resultant solid was isolated, washed with diethyl ether and dried. There was thus obtained the title compound (0.245 g); NMR Spectrum: (DMSOd6) 3.97 (s, 3H), 4.04 (m, 2H), 4.45 (m, 2H), 6.12 (s, 2H), 7.13 (br d, 1H), 7.25 (s, 1H), 7.60 (d, 1H), 7.83 (s, 1H), 8.47 (s, 1H), 9.87 (br s, 1H); Mass Spectrum: M+H+ 375.

Workup

  1. temperatureto warm to ambient temperature
  2. stirringwas stirred for 2 hours
  3. customThe reaction was quenched by the addition of glacial acetic acid (0.12 ml)
  4. customThe solvents were evaporated
  5. customthe residue was partitioned between methylene chloride
  6. customThe organic layer was collected
  7. concentrationconcentrated to a small volume
  8. additionDiethyl ether was added
  9. customa precipitate formed
  10. customThe resultant solid was isolated
  11. washwashed with diethyl ether
  12. customdried

Sources & evidence

ORD record
ord-36a66f8376404254ab25a728b75a1e41
Source dataset
uspto-grants-2008_12
Patent number
US07462623B2

Reaction notes

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