3-Nitro-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-5-one → 3-nitro-6,7,8,9-tetrahydro-5H-benzocyclohepten-5-ol
Reaktionsgleichung
[N+:1]([C:4]1[CH:15]=[CH:14][C:7]2[CH2:8][CH2:9][CH2:10][CH2:11][C:12](=[O:13])[C:6]=2[CH:5]=1)([O-:3])=[O:2].[BH4-].[Na+]>CO>[N+:1]([C:4]1[CH:15]=[CH:14][C:7]2[CH2:8][CH2:9][CH2:10][CH2:11][CH:12]([OH:13])[C:6]=2[CH:5]=1)([O-:3])=[O:2]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a suspension of 3-nitro-6,7,8,9-tetrahydro-5H-benzocyclohepten-5-one (7.0 g) in methanol (70 ml), sodium borohydride (1.29 g) was added portionwise at 21°-30° C. and the whole was stirred for 1 hour. The solution was poured into ice water (210 ml) and the resulting precipitate was collected by filtration, washed with water and dried to give 3-nitro-6,7,8,9-tetrahydro-5H-benzocyclohepten-5-ol (6.81 g).