2-Nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline → 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzene-1,2-diamine

HRID 2403456Notes

Reaction equation

HRID 2403456 reaction equation
[N+:1]([C:4]1[CH:10]=[C:9]([B:11]2[O:15][C:14]([CH3:17])([CH3:16])[C:13]([CH3:19])([CH3:18])[O:12]2)[CH:8]=[CH:7][C:5]=1[NH2:6])([O-])=O>[Pd].CO.C(Cl)Cl>[CH3:16][C:14]1([CH3:17])[C:13]([CH3:18])([CH3:19])[O:12][B:11]([C:9]2[CH:10]=[C:4]([NH2:1])[C:5]([NH2:6])=[CH:7][CH:8]=2)[O:15]1

Participants

5

Reactant 1

HCID 162179142-Nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline

Product 1

HCID 177502424-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzene-1,2-diamineYield 100.4%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

2-Nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (1.00 g) was stirred under hydrogen balloon with palladium on carbon (10%, 150 mg) in a mixture of MeOH and DCM (1:1, 10 ml) at room temperature overnight. The reaction mixture was then filtered through Celite®, volatiles removed in vacuo, and the residue purified by flash chromatography to give 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzene-1,2-diamine (890 mg).

Workup

  1. filtrationThe reaction mixture was then filtered through Celite®
  2. customvolatiles removed in vacuo
  3. customthe residue purified by flash chromatography

Sources & evidence

ORD record
ord-4811479881824071aa278aeaedb401a5
Source dataset
uspto-grants-2014_08
Patent number
US08802670B2

Reaction notes

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