Water → HCID 68524328, compound

HRID 1932469Notes

Reaction equation

HRID 1932469 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][C:9]=1[Cl:10])[CH:5]=O.[NH2:11][C:12]1[CH:13]=[CH:14][C:15]([O:18][C:19]2[CH:24]=[CH:23][C:22]([CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:21][CH:20]=2)=[N:16][CH:17]=1.[BH4-].[Na+].O>C(O)C>[Cl:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][C:9]=1[Cl:10])[CH2:5][NH:11][C:12]1[CH:13]=[CH:14][C:15]([O:18][C:19]2[CH:24]=[CH:23][C:22]([CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:21][CH:20]=2)=[N:16][CH:17]=1

Participants

6

Reactant 4

HCID 962WaterHCID 227103,4-DichlorobenzaldehydeHCID 4311764Sodium borohydrideHCID 68528473HCID 68528473, compound

Product 1

HCID 68524328HCID 68524328, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
40 °C

Procedure

A solution of 3,4-dichlorobenzaldehyde (1.28 g, 7.3 mmol) was added to a solution of ethyl 3-[4-(5-aminopyridin-2-yloxy)phenyl]propionate (2.1 g, 7.3 mmol) in ethanol (20 mL), and the resulting solution was stirred for 2 hours at 40° C. To the resulting reaction solution was added sodium borohydride (0.55 g, 15.7 mmol) under ice cooling, and stirred at the same temperature for 1 hour. To the solution was added water and extracted with ethyl acetate. The ethyl acetate layer was washed with water, dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=4:1), to thereby yield 2.71 g of the title compound.

Workup

  1. customTo the resulting reaction solution
  2. stirringstirred at the same temperature for 1 hour
  3. extractionextracted with ethyl acetate
  4. washThe ethyl acetate layer was washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was evaporated
  7. customthe residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=4:1)

Sources & evidence

ORD record
ord-ee3ca97936544b8780ef20e2a7f7b97b
Source dataset
uspto-grants-2012_05
Patent number
US08188277B2

Reaction notes

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