Hydrochloric Acid → 6-chloro-3-[(4-hydroxyphenyl)thio]-N-(3-methyl-1,2,4-thiadiazol-5-yl)pyridine-2-carboxamide

HRID 2196603ノート

反応式

HRID 2196603 の反応式
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([SH:8])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].Cl[C:16]1[C:17]([C:23]([NH:25][C:26]2[S:30][N:29]=[C:28]([CH3:31])[N:27]=2)=[O:24])=[N:18][C:19]([Cl:22])=[CH:20][CH:21]=1.Cl>O.C(Cl)(Cl)Cl.CN(C)C=O>[Cl:22][C:19]1[N:18]=[C:17]([C:23]([NH:25][C:26]2[S:30][N:29]=[C:28]([CH3:31])[N:27]=2)=[O:24])[C:16]([S:8][C:5]2[CH:6]=[CH:7][C:2]([OH:1])=[CH:3][CH:4]=2)=[CH:21][CH:20]=1

参加物

8

反応物 4

HCID 313Hydrochloric AcidHCID 11430Potassium CarbonateHCID 2401474-MercaptophenolHCID 866196083,6-dichloro-N-(3-methyl-1,2,4-thiadiazol-5-yl)pyridine-2-carboxamide

生成物 1

HCID 866196096-chloro-3-[(4-hydroxyphenyl)thio]-N-(3-methyl-1,2,4-thiadiazol-5-yl)pyridine-2-carboxamide収率 71.7%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6212Chloroform溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
50 °C

実験手順

12 g of 4-hydroxythiophenol and 16 g of potassium carbonate were added to a dimethylformamide (150 ml) solution of 15 g of 3,6-dichloro-N-(3-methyl-1,2,4-thiadiazol-5-yl)pyridine-2-carboxamide, and stirred at 50° C. for 1.5 hours. At room temperature, chloroform and water were added to it, and its pH was controlled to 3 with aqueous 2 N hydrochloric acid solution added thereto. This was extracted with chloroform, the organic layer was washed with saturated saline water, and dried with anhydrous magnesium sulfate. The solvent was evaporated away under reduced pressure, 300 ml of t-butyl methyl ether was added to the residue, and the resulting solid was taken out through filtration to obtain 14.1 g of the entitled compound as a yellow solid.

後処理

  1. additionadded
  2. extractionThis was extracted with chloroform
  3. washthe organic layer was washed with saturated saline water
  4. dry with materialdried with anhydrous magnesium sulfate
  5. customThe solvent was evaporated away under reduced pressure, 300 ml of t-butyl methyl ether
  6. additionwas added to the residue
  7. filtrationthe resulting solid was taken out through filtration

出典と根拠

ORDレコード
ord-9a0d1f3899ad495b9fbb8ede46593eef
出典データセット
uspto-grants-2012_12
特許番号
US08338460B2

反応ノート

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