Formaldehyde → HCID 21521125、化合物

HRID 918471

反応式

HRID 918471 の反応式
[C:1]1([C:7]2[O:11][C:10](=[S:12])[NH:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:13]([C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([C:23]([CH3:26])([CH3:25])[CH3:24])[C:18]=1[OH:27])([CH3:16])([CH3:15])[CH3:14].C=O.[CH2:30]1N2CN3CN(C2)CN1C3>CN(C)C=O.O>[C:23]([C:19]1[CH:20]=[C:21]([CH:22]=[C:17]([C:13]([CH3:16])([CH3:15])[CH3:14])[C:18]=1[OH:27])[CH2:30][N:9]1[N:8]=[C:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[O:11][C:10]1=[S:12])([CH3:26])([CH3:25])[CH3:24]

参加物

7

反応物 4

HCID 712FormaldehydeHCID 4101HexamethylenetetramineHCID 314052,6-Di-tert-butylphenolHCID 7352545-Phenyl-1,3,4-oxadiazole-2-thiol

生成物 1

HCID 21521125HCID 21521125、化合物

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

35.6 g of 5-phenyl-1,3,4-oxadiazole-2-thione (0.2 mol), 41.2 g of 2,6-di-tert.-butylphenol (0.2 mol), 6,6 g of paraformaldehyde (0.22mol) and 0.5 g of hexamethylenetetramine in 130 ml of dimethylformamide and 13 ml of water are heated to 110°C for 7 hours, whilst stirring. After cooling, the reaction mixture is stirred into 500 ml of ice water and the product which precipitates is isolated. For purification, the reaction product is repeatedly digested with methanol, filtered off and dried. 3-(3,5-di-t-Butyl-4-hydroxybenzyl)-5-phenyl-1,3,4-oxadiazole-2-thione (stabiliser N0. 6), thus obtained, has a melting point of 166°C.

後処理

  1. temperatureAfter cooling
  2. customthe product which precipitates
  3. customis isolated
  4. customFor purification
  5. filtrationfiltered off
  6. customdried

出典と根拠

ORDレコード
ord-4b0b91e300f549ff8c1ba3cbbe9cca65
出典データセット
uspto-grants-1976_07
特許番号
US03971803

関連ノート

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