Tetrahydrofuran → HCID 19822248, compound
Reaction equation
[C:1]([O:4][C:5]1[C:6]([CH3:30])=[C:7]2[C:12](=[C:13]([CH3:16])[C:14]=1[CH3:15])[O:11][C:10]([OH:28])([CH2:17][O:18][C:19]1[CH:24]=[CH:23][C:22]([N+:25]([O-])=O)=[CH:21][CH:20]=1)[CH2:9][C:8]2=[O:29])(=[O:3])[CH3:2].O1CCCC1>[Pd].C(O)C>[C:1]([O:4][C:5]1[C:6]([CH3:30])=[C:7]2[C:12](=[C:13]([CH3:16])[C:14]=1[CH3:15])[O:11][C:10]([CH2:17][O:18][C:19]1[CH:20]=[CH:21][C:22]([NH2:25])=[CH:23][CH:24]=1)([OH:28])[CH2:9][C:8]2=[O:29])(=[O:3])[CH3:2]Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
Following the same procedure as described in Preparation 24, 7 g of 6-acetoxy-2-hydroxy-5,7,8-trimethyl-2-(4-nitrophenoxymethyl)chroman-4-one (prepared as described in Preparation 43) were treated with 5 g of 10% w/w palladium-on-carbon, 100 ml of tetrahydrofuran and 100 ml of ethanol, to give the title compound.
Sources & evidence
- ORD record
- ord-e44661b2efb74aacadce5beca2361fd2
- Source dataset
- uspto-grants-1992_04
- Patent number
- US05104888
Reaction notes
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