Hydrochloric Acid → 7-Thiabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid
Reaction equation
[CH:1]12[S:7][CH:4]([CH:5]=[CH:6]1)[CH:3]1[C:8]([O:10][C:11](=[O:12])[CH:2]21)=[O:9].Cl.[OH2:14]>>[CH:1]12[S:7][CH:4]([CH:5]=[CH:6]1)[CH:3]([C:8]([OH:14])=[O:9])[CH:2]2[C:11]([OH:10])=[O:12]Participants
4
Conditions
- Temperature
- 700 °C
Procedure
The compound of Chemical Formula 201, that is 7-thiabicyclo[2.2.1]hept-5ene-2,3-dicarboxylic anhydride (50 g) is well mixed with water (200 ml), and 1 g of hydrochloric acid is added thereto. The resultant mixture is heated under reflux at 700° C. for 20 hours. Upon cooling the mixture to room temperature, crystals are formed. The crystals are dried in vacuo to obtain 7-thiabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid represented by Chemical Formula 167 (yield: 70%).
Workup
- additionis added
- temperatureUpon cooling the mixture to room temperature
- customcrystals are formed
- customThe crystals are dried in vacuo
Sources & evidence
- ORD record
- ord-ebfafd000ecd4837ab6553eef872ff62
- Source dataset
- uspto-grants-2001_09
- Patent number
- US06291131B1
Reaction notes
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