Water → HCID 53699280, compound
Reaction equation
[OH-].[Na+].O.[CH3:4][C@H:5]1[CH2:10][C@@H:9]([CH3:11])[CH2:8][N:7]([S:12]([C:15]2[CH:16]=[CH:17][CH:18]=[C:19]([C:24]=2[Cl:25])[C:20]([O:22]C)=[O:21])(=[O:14])=[O:13])[CH2:6]1>CO>[CH3:4][C@H:5]1[CH2:10][C@@H:9]([CH3:11])[CH2:8][N:7]([S:12]([C:15]2[CH:16]=[CH:17][CH:18]=[C:19]([C:24]=2[Cl:25])[C:20]([OH:22])=[O:21])(=[O:13])=[O:14])[CH2:6]1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 40 °C
Procedure
An aqueous solution of 4.2 g. (105 m moles) of sodium hydroxide in 130 ml. of water is added to 18 g. (52.5 m moles) of methyl 5-(cis-3,5-dimethylpiperidinosulfonyl)-6-chlorobenzoate in 130 ml. of methanol, and resulting reaction mixture allowed to stir at 40° C. for 1 hr. The solution is poured into ice water (1.5 l.) and extracted several times with benzene. The aqueous phase is separated, acidified with12N hydrochloric acid, and the precipitated product filtered and air dried,17.3 g. Recrystallization from ethyl acetate-hexane gave the purified product, 16.4 g., m.p. 152.5°-153° C.
Workup
- customreaction mixture
- extractionextracted several times with benzene
- customThe aqueous phase is separated
- filtrationthe precipitated product filtered
- customair dried
- customRecrystallization from ethyl acetate-hexane
- customgave the purified product, 16.4 g
Sources & evidence
- ORD record
- ord-95250d197fd84bb1bd9bf30ff37b2713
- Source dataset
- uspto-grants-1976_11
- Patent number
- US03992441
Reaction notes
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