Hydrazine hydrate (1:1) → 5-chloro-2-(3-glycylaminomethyl-5-methyl-4H-1,2,4-triazol-4-yl)-benzophenone hydrate

HRID 614044

反応式

HRID 614044 の反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:16]2[C:20]([CH3:21])=[N:19][N:18]=[C:17]2[CH2:22][NH:23][C:24](=[O:37])[CH2:25][N:26]2C(=O)C3=CC=CC=C3C2=O)=[C:6]([CH:15]=1)[C:7]([C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)=[O:8].O.NN>C(O)C>[OH2:8].[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:16]2[C:20]([CH3:21])=[N:19][N:18]=[C:17]2[CH2:22][NH:23][C:24](=[O:37])[CH2:25][NH2:26])=[C:6]([CH:15]=1)[C:7]([C:9]1[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=1)=[O:8]

参加物

4

反応物 2

HCID 24654Hydrazine hydrate (1:1)HCID 155678715-chloro-2-[3-(2-phthalimidoacetamidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]-benzophenone

生成物 1

HCID 213257385-chloro-2-(3-glycylaminomethyl-5-methyl-4H-1,2,4-triazol-4-yl)-benzophenone hydrate収率 94%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

To a solution of 5-chloro-2-[3-(2-phthalimidoacetamidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]-benzophenone (2.3 g) in ethanol (20 ml), hydrazine hydrate (0.92 g) is added, and the resultant mixture is refluxed for 1 hour. The precipitated phthalylhydrazide is filtered off, and the filtrate is evaporated under reduced pressure. The residue is dissolved in methylene chloride, washed with saturated aqueous sodium bicarbonate and water in order, dried over sodium sulfate, and evaporated under reduced pressure. The residue is chromatographed on a column of silica gel, and the product obtained from the eluate by evaporation is recrystallized from ethyl acetate to give 5-chloro-2-(3-glycylaminomethyl-5-methyl-4H-1,2,4-triazol-4-yl)-benzophenone hydrate as crystals melting at 110° to 113° C. The yield is 94%.

後処理

  1. filtrationThe precipitated phthalylhydrazide is filtered off
  2. customthe filtrate is evaporated under reduced pressure
  3. dissolutionThe residue is dissolved in methylene chloride
  4. washwashed with saturated aqueous sodium bicarbonate and water in order
  5. dry with materialdried over sodium sulfate
  6. customevaporated under reduced pressure
  7. customThe residue is chromatographed on a column of silica gel
  8. customthe product obtained from the
  9. customeluate by evaporation
  10. customis recrystallized from ethyl acetate

出典と根拠

ORDレコード
ord-4beb4fc9a79943b8b1fe5c5ca97e00c2
出典データセット
uspto-grants-1979_03
特許番号
US04143048

関連ノート

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