Ammonia → Benzo-1,2,3-thiadiazole-7-carboxylic acid amide

HRID 729002ノート

反応式

HRID 729002 の反応式
[NH3:1].C[O:3][C:4]([C:6]1[C:14]2[S:13][N:12]=[N:11][C:10]=2[CH:9]=[CH:8][CH:7]=1)=O>O1CCCC1>[S:13]1[C:14]2[C:6]([C:4]([NH2:1])=[O:3])=[CH:7][CH:8]=[CH:9][C:10]=2[N:11]=[N:12]1

参加物

4

反応物 2

HCID 222AmmoniaHCID 1794011,2,3-Benzothiadiazole-7-carboxylic acid, methyl ester

生成物 1

HCID 22403364Benzo-1,2,3-thiadiazole-7-carboxylic acid amide

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

In an autoclave, under pressure and at room temperature, 17 g of ammonia ispassed into a solution of 19.4 g of benzo-1,2,3-thiadiazole-7-carboxylic acid methyl ester in 70 ml of tetrahydrofuran. The solution is then heatedand maintained at 80°-90° C. for approximately 20 hours, an internal pressure of 55·105Pa max. building up. Partial concentration by evaporation is then carried out and the resulting precipitate is filtered off, washed with cold tetrahydrofuran and dried. 14.9 g of beige crystals having a melting point of 270°-272°C. are obtained.

後処理

  1. customat room temperature
  2. temperatureThe solution is then heatedand maintained at 80°-90° C. for approximately 20 hours
  3. concentrationPartial concentration
  4. customby evaporation
  5. filtrationthe resulting precipitate is filtered off
  6. washwashed with cold tetrahydrofuran
  7. customdried
  8. customare obtained

出典と根拠

ORDレコード
ord-bb81936b7eed4b80be88f27f04375034
出典データセット
uspto-grants-1991_09
特許番号
US05051436

反応ノート

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