Methanol → 1026989-91-2
Reaction equation
O.NN.[C:4]([O:8][CH2:9][CH2:10][CH2:11][O:12][N:13]1C(=O)C2C(=CC=CC=2)C1=O)([CH3:7])([CH3:6])[CH3:5].CO>C(Cl)Cl>[C:4]([O:8][CH2:9][CH2:10][CH2:11][O:12][NH2:13])([CH3:7])([CH3:6])[CH3:5]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
Hydrazine hydrate (1.36 mL, 43.3 mmol) was added to a solution of 2-(3-tert-Butoxy-propoxy)-isoindole-1,3-dione (6.0 g, 21.7 mmol) in CH2Cl2 (50 mL) with MeOH (5 mL), and the reaction stirred 1 h at room temperature. The precipitate was removed by filtration, and the filtrate was purified by silica gel chromatography (6% MeOH/CH2Cl2) to give 2.4 g (75%) of compound 29A as a clear oil. 1H NMR (400 MHz, CDCl3): δ 4.94 (br s, 2H), 3.71 (t, 2H, J=6.4 Hz), 3.38 (t, 2H, J=6.4 Hz), 1.70-1.79 (m, 2H), 1.15 (s, 9H).
Workup
- customThe precipitate was removed by filtration
- customthe filtrate was purified by silica gel chromatography (6% MeOH/CH2Cl2)
Sources & evidence
- ORD record
- ord-de8e1aaa0b0e45db9c0d2458ef45d967
- Source dataset
- uspto-grants-2011_05
- Patent number
- US07943626B2
Reaction notes
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