Water → HCID 53699280, compound

HRID 1730607Notes

Reaction equation

HRID 1730607 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]1

Participants

5

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

  1. customreaction mixture
  2. extractionextracted several times with benzene
  3. customThe aqueous phase is separated
  4. filtrationthe precipitated product filtered
  5. customair dried
  6. customRecrystallization from ethyl acetate-hexane
  7. 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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