Water → 5-[[3,5-Bis(1,1-dimethylethyl)-4-hydroxyphenyl]methylene]-2-thioxo-4-imidazolidinone

HRID 486104

反応式

HRID 486104 の反応式
[C:1]([C:5]1[CH:6]=[C:7]([CH:10]=[C:11]([C:14]([CH3:17])([CH3:16])[CH3:15])[C:12]=1[OH:13])[CH:8]=O)([CH3:4])([CH3:3])[CH3:2].[NH:18]1[CH2:24][C:22](=[O:23])[NH:21][C:19]1=[S:20].C([O-])(=O)C.[Na+].O>C(O)(=O)C>[CH3:4][C:1]([C:5]1[CH:6]=[C:7]([CH:8]=[C:24]2[NH:18][C:19](=[S:20])[NH:21][C:22]2=[O:23])[CH:10]=[C:11]([C:14]([CH3:17])([CH3:16])[CH3:15])[C:12]=1[OH:13])([CH3:2])[CH3:3]

参加物

6

反応物 4

HCID 962WaterHCID 732193,5-Di-tert-butyl-4-hydroxybenzaldehydeHCID 517045Sodium AcetateHCID 12740302-Thiohydantoin

生成物 1

HCID 541342535-[[3,5-Bis(1,1-dimethylethyl)-4-hydroxyphenyl]methylene]-2-thioxo-4-imidazolidinone収率 57.8%

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒

実験手順

A mixture of 3,5-di-tert-butyl-4-hydroxybenzaldehyde (30.0 g, 128 mmols), 2-thiohydantoin (14.8 g, 128 mmols), and sodium acetate (36 g) in acetic acid (200 ml) is stirred under nitrogen and heated to reflux. After 24 hours the mixture is allowed to cool, and is stirred into water (2 L). After 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]-2-thioxo-4-imidazolidinone (24.6 g), mp 278°-279° C. (dec).

後処理

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

出典と根拠

ORDレコード
ord-a59b2f68367049babe8d084d0602202c
出典データセット
uspto-grants-1994_03
特許番号
US05290800

関連ノート

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