Phosphoric Acid → HCID 178480056、化合物

HRID 2396814ノート

反応式

HRID 2396814 の反応式
[N:1]#[C:2][NH2:3].[CH3:4][C:5]([C:8]1[CH:9]=[C:10]([CH:19]=[C:20]2[N:24]([CH3:25])[C:23](SC)=[N:22][C:21]2=[O:28])[CH:11]=[C:12]([C:15]([CH3:18])([CH3:17])[CH3:16])[C:13]=1[OH:14])([CH3:7])[CH3:6].CC(C)([O-])C.[K+].P(=O)(O)(O)O>C(O)C.O>[CH3:4][C:5]([C:8]1[CH:9]=[C:10]([CH:19]=[C:20]2[N:24]([CH3:25])[C:23]([NH:3][C:2]#[N:1])=[N:22][C:21]2=[O:28])[CH:11]=[C:12]([C:15]([CH3:18])([CH3:17])[CH3:16])[C:13]=1[OH:14])([CH3:7])[CH3:6]

参加物

7

反応物 4

HCID 1004Phosphoric AcidHCID 9864CyanamideHCID 23665647Potassium tert-butoxideHCID 54334135HCID 54334135、化合物

生成物 1

HCID 178480056HCID 178480056、化合物収率 50.6%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒

実験手順

Cyanamide (0.2 g, 4.8 mmols) is added to a solution of 5-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methylene]-1,5-dihydro-1-methyl-2-(methylthio)-4H-imidazol-4-one (1.5 g, 3.9 mmols) and potassium tert-butoxide (0.5 g, 4.3 mmols) in ethanol (25 mL) and the mixture is stirred under an inert atmosphere and heated to reflux. After 2.5 hours the mixture is allowed to cool, and is then poured into water (200 mL), acidified with phosphoric acid, and stirred. After half an hour the product is filtered off, washed three times with water, and dried. Recrystallization from acetonitrile gave the 5-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methylene]-4,5-dihydro-1-methyl-4-oxo-1H-imidazol-2-yl-cyanamide (0.7 g), mp 257°-259° C. (dec).

後処理

  1. temperatureheated to reflux
  2. temperatureto cool
  3. stirringstirred
  4. filtrationAfter half an hour the product is filtered off
  5. washwashed three times with water
  6. customdried
  7. customRecrystallization from acetonitrile

出典と根拠

ORDレコード
ord-bc78e5a430b2427dbc70e3faf12df640
出典データセット
uspto-grants-1996_02
特許番号
US05494927

反応ノート

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