Sodium Carbonate → HCID 178513361、化合物

HRID 1784544

反応式

HRID 1784544 の反応式
[S:1]([C:5]1[S:9][C:8]([C:10]#[N:11])=[CH:7][CH:6]=1)(=[O:4])(=[O:3])[NH2:2].Cl.[NH2:13][OH:14].C(=O)([O-])[O-].[Na+].[Na+]>O.C(O)C>[OH:14][NH:13][C:10]([C:8]1[S:9][C:5]([S:1](=[O:4])(=[O:3])[NH2:2])=[CH:6][CH:7]=1)=[NH:11]

参加物

6

反応物 3

HCID 10340Sodium CarbonateHCID 443297Hydroxyamine hydrochlorideHCID 220195265-Cyanothiophene-2-sulfonamide

生成物 1

HCID 178513361HCID 178513361、化合物収率 58%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒2 回

実験手順

A stirred mixture of 5-sulfamoyl-thiophene-2-carbonitrile [CAS-No. 519055-65-3] (0.31 g, 1.65 mmol), hydroxylamine hydrochloride (0.23 g, 3.31 mmol) and sodium carbonate (0.175 g, 1.65 mmol) in water (4.6 ml) and ethanol (1 ml) was heated under reflux conditions for 1.5 h. The reaction mixture was poured into water (50 ml) and extracted with ethyl acetate (3×100 ml). The combined organic layers were washed with brine (100 ml), dried (MgSO4) and evaporated. The crude product was purified by flash chromatography on silica gel (ethyl acetate/heptane) and crystallization (ethyl acetate/MeOH/hexane) to yield the title compound (0.21 g, 58%) as a white solid. MS (ISN) 220.1 [(M−H)−]; mp 189° C.

後処理

  1. temperaturewas heated under reflux conditions for 1.5 h
  2. extractionextracted with ethyl acetate (3×100 ml)
  3. washThe combined organic layers were washed with brine (100 ml)
  4. dry with materialdried (MgSO4)
  5. customevaporated
  6. customThe crude product was purified by flash chromatography on silica gel (ethyl acetate/heptane) and crystallization (ethyl acetate/MeOH/hexane)

出典と根拠

ORDレコード
ord-c541337de22b4c3ba4b3ff8e6787cae7
出典データセット
uspto-grants-2009_03
特許番号
US07504404B2

関連ノート

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