Hydrochloric Acid → HCID 12901224, compound
Reaction equation
[F:1][C:2]1[CH:21]=[CH:20][C:5]([C:6]([C:8]2[CH:9]=[CH:10][CH:11]=[C:12]3[C:16]=2[NH:15][C:14](=[O:17])[CH:13]3SC)=[O:7])=[CH:4][CH:3]=1.[Sn].Cl>C(O)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:6]([C:8]2[CH:9]=[CH:10][CH:11]=[C:12]3[C:16]=2[NH:15][C:14](=[O:17])[CH2:13]3)=[O:7])=[CH:20][CH:21]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 40.0 g (0.133 mole) of 7-(4-fluorobenzoyl)-3-methylthioindolin-2-one and 40.0 g (0.34 mole) of tin powder in one liter of 95% ethanol was heated to reflux and 100 ml of concentrated hydrochloric acid was added. The mixture was heated for 6 hrs, then filtered while hot. The filtrate was cooled and the precipitate was collected and recrystallized from isopropyl alcohol to yield 24.5 g (72%) as off-white needles, m.p. 185°-187.0° C.
Workup
- temperaturewas heated
- temperatureto reflux
- temperatureThe mixture was heated for 6 hrs
- filtrationfiltered while hot
- temperatureThe filtrate was cooled
- customthe precipitate was collected
- customrecrystallized from isopropyl alcohol
- customto yield 24.5 g (72%) as off-white needles, m.p. 185°-187.0° C.
Sources & evidence
- ORD record
- ord-c413eba9a2eb4c99a58e7db3e3623a08
- Source dataset
- uspto-grants-1985_03
- Patent number
- US04503073
Reaction notes
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