Hydrazine hydrate (1:1) → HCID 89733627、化合物

HRID 573930ノート

反応式

HRID 573930 の反応式
[CH2:1]([C:3]1[CH:8]=[C:7]([O:9][CH3:10])[CH:6]=[CH:5][C:4]=1[N:11]=[C:12]=[S:13])[CH3:2].O.[NH2:15][NH2:16]>C(O)C>[CH2:1]([C:3]1[CH:8]=[C:7]([O:9][CH3:10])[CH:6]=[CH:5][C:4]=1[NH:11][C:12]([NH:15][NH2:16])=[S:13])[CH3:2]

参加物

4

反応物 2

HCID 24654Hydrazine hydrate (1:1)HCID 83799798HCID 83799798、化合物

生成物 1

HCID 89733627HCID 89733627、化合物収率 87%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

To a solution of 2-ethyl-1-isothiocyanato-4-methoxybenzene (4.9 g, 25 mmol) in ethanol (22 mL), was added slowly, hydrazine-hydrate (1.3 g, 28 mmol). The reaction mixture was stirred at room temperature for 18 hours. The reaction mixture was evaporated under reduced pressure and diluted with ethyl acetate (250 mL) and washed with water (2×50 mL), followed by brine (2×50 mL). The organic phase was dried over sodium sulfate, filtered, and evaporated under reduced pressure. Purification by flash column chromatography using 0-40% ethyl acetate/hexanes as eluent provided the title compound as a white solid (4.9 g, 86%): mp 113-115° C.; 1H NMR (400 MHz, DMSO-d6) δ 9.19 (s, 1H), 8.89 (s, 1H), 7.20-7.19 (m, 1H), 6.77-6.71 (m, 2H), 4.71 (bs, 2H), 3.74 (s, 3H), 2.52-2.47 (m, 2H), 1.13-1.08 (m, 3H); ESIMS m/z 224 ([M−H]−).

後処理

  1. customThe reaction mixture was evaporated under reduced pressure
  2. additiondiluted with ethyl acetate (250 mL)
  3. washwashed with water (2×50 mL)
  4. dry with materialThe organic phase was dried over sodium sulfate
  5. filtrationfiltered
  6. customevaporated under reduced pressure
  7. customPurification by flash column chromatography

出典と根拠

ORDレコード
ord-7d086552569740adaeb2437329c0ff14
出典データセット
uspto-grants-2015_05
特許番号
US09029560B2

反応ノート

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