Isoamylamine → 7-{2,6-Difluoro-4-[(3-methyl-butylamino)-methyl]-phenoxy}-2,2-dimethyl-benzo[1,3]dioxin-4-one

HRID 1436323Notes

Reaction equation

HRID 1436323 reaction equation
[CH3:1][C:2]1([CH3:24])[O:7][C:6](=[O:8])[C:5]2[CH:9]=[CH:10][C:11]([O:13][C:14]3[C:21]([F:22])=[CH:20][C:17]([CH:18]=O)=[CH:16][C:15]=3[F:23])=[CH:12][C:4]=2[O:3]1.[CH3:25][CH:26]([CH3:30])[CH2:27][CH2:28][NH2:29].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].[OH-].[K+]>ClCCCl>[F:22][C:21]1[CH:20]=[C:17]([CH2:18][NH:29][CH2:28][CH2:27][CH:26]([CH3:30])[CH3:25])[CH:16]=[C:15]([F:23])[C:14]=1[O:13][C:11]1[CH:10]=[CH:9][C:5]2[C:6](=[O:8])[O:7][C:2]([CH3:24])([CH3:1])[O:3][C:4]=2[CH:12]=1

Participants

6

Reactant 4

HCID 7894IsoamylamineHCID 14797Potassium HydroxideHCID 5049666Sodium triacetoxyborohydrideHCID 579390244-(2,2-Dimethyl-4-oxo-4H-benzo[1,3]dioxin-7-yloxy)-3,5-difluoro-benzaldehyde

Product 1

HCID 579390267-{2,6-Difluoro-4-[(3-methyl-butylamino)-methyl]-phenoxy}-2,2-dimethyl-benzo[1,3]dioxin-4-one

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

4-(2,2-Dimethyl-4-oxo-4H-benzo[1,3]dioxin-7-yloxy)-3,5-difluoro-benzaldehyde (I-1b-2: 1.0 g) and 3-methyl-butylamine (0.31 g) were combined in 1,2-dichloroethane (25 mL). After stirring at ambient temperature for 1 hour, sodium triacetoxyborohydride (3.3 g) was added to the solution. After stirring overnight, the reaction mixture was treated with an aqueous 2 N potassium hydroxide solution, the organic phase was separated, dried over magnesium sulfate, filtered, and evaporated to provide the title compound (I-1c-3).

Workup

  1. stirringAfter stirring overnight
  2. customthe organic phase was separated
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. customevaporated

Sources & evidence

ORD record
ord-e2508b2d53fb428396ebced00bdd16ef
Source dataset
uspto-grants-2009_11
Patent number
US07618996B2

Reaction notes

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