1(3H)-Isobenzofuranone, 3-methyl-6-nitro- → 1(3H)-Isobenzofuranone, 6-amino-3-methyl-
Reaktionsgleichung
[CH3:1][CH:2]1[C:11]2[C:6](=[CH:7][C:8]([N+:12]([O-])=O)=[CH:9][CH:10]=2)[C:4](=[O:5])[O:3]1>C(O)C.[C].[Pd]>[NH2:12][C:8]1[CH:7]=[C:6]2[C:11]([CH:2]([CH3:1])[O:3][C:4]2=[O:5])=[CH:10][CH:9]=1Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
78.00 g of 3-methyl-6-nitrophthalide (3-3) was dissolved in 1.2 l of ethanol and 4.0 g of 5% palladium carbon was added thereto, and under a hydrogen atmosphere, the resulting mixture was stirred at a room temperature for 5 hours. The catalyst was filtered off, and thereafter, the filtrate was concentrated under reduced pressure, and the precipitated crystal was purified by recrystallizing (ethanol:water) to obtain 58.21 g of 6-amino-3-methylphtalide (3-4).