Sodium hydride → HCID 21081973, compound

HRID 970584Notes

Reaction equation

HRID 970584 reaction equation
[F:1][C:2]1[CH:13]=[CH:12][C:5]2[NH:6][C:7](=[O:11])[O:8][C:9](=[O:10])[C:4]=2[CH:3]=1.[H-].[Na+].[F:16][C:17]1[CH:24]=[CH:23][C:20]([CH2:21]Br)=[CH:19][CH:18]=1>CN(C=O)C>[F:1][C:2]1[CH:13]=[CH:12][C:5]2[N:6]([CH2:21][C:20]3[CH:23]=[CH:24][C:17]([F:16])=[CH:18][CH:19]=3)[C:7](=[O:11])[O:8][C:9](=[O:10])[C:4]=2[CH:3]=1

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 680214-Fluorobenzyl bromideHCID 2885605-Fluoroisatoic anhydride

Product 1

HCID 21081973HCID 21081973, compoundYield 67.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

A solution of Compound 35 (3 g, 16.57 mmol) in DMF was added slowly to a suspension of NaH (60% in mineral oil, 729 mg, 18.22 mmol) in DMF and further stirred at room temperature for 1 h. Then, neat 4-fluorobenzyl bromide (2.28 mL, 18.23 mmol) was added and the solution further stirred at room temperature for 3 h. The solution was poured into ice water and the solids formed were filtered, washed several times by water, and dried. The solids were suspended in hexane, sonicated briefly, filtered, and washed by hexane to yield 3.23 g (67%) of white solids. M.P. 107° C. 1H NMR (DMSO-d6): δ 5.27 (s, 2H), 7.19 (m, 2H), 7.29 (dd, J=3.9, 9.0 Hz, 1H), 7.47 (m, 2H), 7.65 (td, J=5.5, 9.0 Hz, 1H), 7.81 (dd, J=2.9, 7.9 Hz, 1H). Anal. (C15H9F2NO3) C, H, N.

Workup

  1. stirringthe solution further stirred at room temperature for 3 h
  2. customthe solids formed
  3. filtrationwere filtered
  4. washwashed several times by water
  5. customdried
  6. customsonicated briefly
  7. filtrationfiltered
  8. washwashed by hexane

Sources & evidence

ORD record
ord-5c0adc2027e04c00a5435bb6fe497924
Source dataset
uspto-grants-2007_12
Patent number
US07312221B2

Reaction notes

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