Hydrochloric Acid → [2-(2-Fluoro-4,5-dimethoxyphenyl)-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylimino]-1-methylsulfanylethylidene]carbamic acid methyl ester

HRID 1698612Notes

Reaction equation

HRID 1698612 reaction equation
N1C(C)=CC(C)=CC=1C.Cl[C:11]([O:13][CH3:14])=[O:12].[CH3:15][S:16][C:17](=[NH:43])[CH:18]([C:32]1[CH:37]=[C:36]([O:38][CH3:39])[C:35]([O:40][CH3:41])=[CH:34][C:33]=1[F:42])[NH:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]2[N:30]=[C:29]([CH3:31])[O:28][N:27]=2)=[CH:22][CH:21]=1.Cl>C1(C)C=CC=CC=1>[CH3:14][O:13][C:11](=[O:12])[N:43]=[C:17]([S:16][CH3:15])[C:18]([C:32]1[CH:37]=[C:36]([O:38][CH3:39])[C:35]([O:40][CH3:41])=[CH:34][C:33]=1[F:42])=[N:19][C:20]1[CH:21]=[CH:22][C:23]([C:26]2[N:30]=[C:29]([CH3:31])[O:28][N:27]=2)=[CH:24][CH:25]=1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 6586Methyl chloroformateHCID 79532,4,6-TrimethylpyridineHCID 59516937HCID 59516937, compound

Product 1

HCID 72312823[2-(2-Fluoro-4,5-dimethoxyphenyl)-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylimino]-1-methylsulfanylethylidene]carbamic acid methyl ester

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Conditions

Temperature
80 °C

Procedure

After adding 9.85 ml of collidine and 4.94 ml of methyl chloroformate to a solution of 8.89 g of 2-(2-fluoro-4,5-dimethoxyphenyl)-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]thioacetimidic acid methyl ester in 300 ml of toluene, the mixture was stirred at 80° C. for 18 hours under a nitrogen atmosphere. After cooling the reaction mixture, dilute hydrochloric acid was added and extraction was performed with ethyl acetate. The organic layer was washed with water and saturated brine, and then dried over anhydrous sodium sulfate. The desiccating agent was filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate-heptane) to give the title compound (4.12 g, isomeric mixture) as a light yellow solid.

Workup

  1. additionwas added
  2. extractionextraction
  3. washThe organic layer was washed with water and saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationThe desiccating agent was filtered
  6. concentrationthe filtrate was concentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (ethyl acetate-heptane)

Sources & evidence

ORD record
ord-34aca8c249734771a1ec069aed687d3c
Source dataset
uspto-grants-2012_04
Patent number
US08163787B2

Reaction notes

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