反応式
[C:1](O)(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[Pd:13].[N+]([O-])([O-])=O.[Pd+2].[N+]([O-])([O-])=O>>[C:6]([C:5]1[CH:9]=[CH:10][C:2]([CH:1]=[O:11])=[CH:3][CH:4]=1)([OH:8])=[O:7].[Pd:13]参加物
5
実験手順
For reasons which are not understood, it has been found that hydrogenation of crude terephthalic acid with a catalyst comprising palladium deposited upon and reacted with a porous activated carbonaceous support from an organic solution of palladium nitrate gives a better reduction of 4-carboxybenzaldehyde (4-CBA) with decreasing palladium content of the catalyst in the 0.1 (wt)% to 0.6 (wt)% range. Preferably, the catalyst should have less than 0.3 (wt)% palladium content. This is also an economic advantage because less palladium is needed.
出典と根拠
- ORDレコード
- ord-f7a7eeec282246948a7c3e600ae0aab5
- 出典データセット
- uspto-grants-1988_12
- 特許番号
- US04791226
関連ノート
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