Methanol → HCID 131710841, compound
Reaction equation
C([C:4]1[CH:19]=[CH:18][C:7]2[C:8](=[O:17])[C:9]3[CH:16]=[CH:15][CH:14]=[CH:13][C:10]=3[CH:11]=[CH:12][C:6]=2[CH:5]=1)(O)=O.[OH-:20].[Na+:21].[CH3:22][OH:23]>>[O:17]=[C:8]1[C:7]2[CH:18]=[CH:19][CH:4]=[C:5]([C:22]([O-:23])=[O:20])[C:6]=2[CH:12]=[CH:11][C:10]2[CH:13]=[CH:14][CH:15]=[CH:16][C:9]1=2.[Na+:21]Participants
4
Procedure
25.0 G. of 2-carboxy-5-oxo-5H-dibenzo[a,d]cycloheptene is added to a mixture of 4.0 g. of sodium hydroxide in 500 ml. of aqueous methanol. The mixture is stirred for 3 hours at room temperature, then the mixture is evaporated to afford sodium (5-oxo-5H-dibenzo[a,d]cylohepten--yl)carboxylate -yl)-carboxylate (m.p. 300° C). By employing 5.6 g. of potassium hydroxide in place of the sodium hydroxide above, there is obtained potassium (5-oxo-5H-dibenzo[a,d]cyclohepten-2-yl)carboxylate.
Workup
- customthe mixture is evaporated
Sources & evidence
- ORD record
- ord-58ef78adc18f4ad998548593be87f19e
- Source dataset
- uspto-grants-1977_07
- Patent number
- US04035509
Reaction notes
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