Nitric Acid → HCID 19696206, compound
Reaction equation
[C:1]([CH2:4][CH2:5][CH:6]1[C:14]2[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH2:8][CH2:7]1)([OH:3])=[O:2].FC(F)(F)C(O)=O.[N+:22]([O-])([OH:24])=[O:23]>>[C:1]([CH2:4][CH2:5][CH:6]1[C:14]2[C:9](=[CH:10][C:11]([N+:22]([O-:24])=[O:23])=[CH:12][CH:13]=2)[CH2:8][CH2:7]1)([OH:3])=[O:2]Participants
4
Procedure
A mixture of 2-carboxyethylindane (28.8 g, 0.15 mol) and trifluoroacetic acid (300 mL) was cooled in an ice bath and then treated with fuming nitric acid (50 mL). The reaction mixture was slowly warmed to room temperature and allowed to stir for 18 h. After removing the solvent, the residue was dissolved in an either:water mixture. The ether layer was separated and washed with water, and then saturated NaCl, and dried over magnesium sulfate. The filtrate was evaporated to give a dark syrup (34.3 gm, 3:1 ratio of isomers).
Workup
- temperaturewas cooled in an ice bath
- customAfter removing the solvent
- dissolutionthe residue was dissolved in an either:water mixture
- customThe ether layer was separated
- washwashed with water
- dry with materialsaturated NaCl, and dried over magnesium sulfate
- customThe filtrate was evaporated
- customto give a dark syrup (34.3 gm, 3:1 ratio of isomers)
Sources & evidence
- ORD record
- ord-3181199db3a74defa001e62f4c0593ca
- Source dataset
- uspto-grants-1998_02
- Patent number
- US05721234
Reaction notes
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