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cyclopentane-1,2,3,4-tetracarboxylic acid
1,2,3,4-cyclopentanetetracarboxylic acid dianhydride
Conditions | Yield |
---|---|
With acetic anhydride In tetrahydrofuran at 80℃; for 0.5h; Solvent; Temperature; Inert atmosphere; | 91.2% |
5-norbornene-2,3-dicarboxylic anhydride
1,2,3,4-cyclopentanetetracarboxylic acid dianhydride
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: water; acetic acid; ozone / 6 h / 0 °C 2: dihydrogen peroxide / 80 °C 3: acetic anhydride / tetrahydrofuran / 0.5 h / 80 °C / Inert atmosphere View Scheme |
1,2,3,4-cyclopentanetetracarboxylic acid dianhydride
tetrahydro-cyclopenta[1,2-c;3,4-c']dipyrrole-1,3,4,6-tetraone
Conditions | Yield |
---|---|
With ammonium hydroxide 2.) from 200 to 300 deg C; Multistep reaction; |
N1-(4-(9H-carbazol-9-yl)phenyl)-N1-(4-aminophenyl)benzene-1,4-diamine
1,2,3,4-cyclopentanetetracarboxylic acid dianhydride
Conditions | Yield |
---|---|
In N,N-dimethyl acetamide at 20℃; for 12h; |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In toluene for 2.5h; Dean-Stark; Reflux; | 24 g |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene-4-sulfonic acid / toluene / 2.5 h / Dean-Stark; Reflux 2: 3-chloro-benzenecarboperoxoic acid / chloroform / 20 h / 0 - 20 °C View Scheme |
1,2,3,4-cyclopentanetetracarboxylic acid dianhydride
2,2'-bis(trifluoromethyl)benzidine
Conditions | Yield |
---|---|
With pyridine In 1-methyl-pyrrolidin-2-one at 150 - 180℃; Inert atmosphere; | 3 g |
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