2-Amino-4,6-dimethyl pyrimidine → 1-(2-cyanoethyl)-N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-1H-pyrrole-2-sulfonamide

HRID 1164170

反応式

HRID 1164170 の反応式
[NH2:1][C:2]1[N:7]=[C:6]([CH3:8])[CH:5]=[C:4]([CH3:9])[N:3]=1.Cl[S:11]([N:14]=[C:15]=[O:16])(=[O:13])=[O:12].[C:17]([CH2:19][CH2:20][N:21]1[CH:25]=[CH:24][CH:23]=[CH:22]1)#[N:18].[Cl-].[Al+3].[Cl-].[Cl-]>O1CCCC1.O>[C:17]([CH2:19][CH2:20][N:21]1[CH:25]=[CH:24][CH:23]=[C:22]1[S:11]([NH:14][C:15]([NH:1][C:2]1[N:7]=[C:6]([CH3:8])[CH:5]=[C:4]([CH3:9])[N:3]=1)=[O:16])(=[O:13])=[O:12])#[N:18]

参加物

7

反応物 4

HCID 130212-Amino-4,6-dimethyl pyrimidineHCID 70918Chlorosulfonyl isocyanateHCID 965273-(Pyrrol-1-yl)propiononitrileHCID 6451240Aluminum(III) Chloride

生成物 1

HCID 130908821-(2-cyanoethyl)-N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-1H-pyrrole-2-sulfonamide収率 16.4%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒2 回

実験手順

To a stirred suspension of 2.59 g (0.021 mole) of 2-amino-4,6-dimethylpyrimidine in 80 ml dry tetrahydrofuran at -70° C. under nitrogen was added dropwise via syringe 2.0 ml (0.023 mole) of chlorosulfonyl isocyanate at such a rate to maintain the temperature of the reaction mixture below -55° C. The resulting solution was stirred 0.5 hour at -70°, then treated dropwise with a solution of 2.4 ml (0.021 mol) of N-(2-cyanoethyl)pyrole in 10 ml dry THF. A catalytic amount (approximately 0.2 to 0.3 gm) of aluminum (III) chloride was added and the reaction mixture allowed to warm to ambient temperatures and stirred for an additional 18 hours. The reaction mixture was poured into 300 ml of H2O and extracted with three portions of dichloromethane. The organic solutions were washed with water, dried over MgSO4 and evaporated. Trituration with a small volume of CH2Cl2 afforded 1.2 g of the desired product as a white microcrystalline solid, m.p. 158°-159° C. The infrared spectrum of the product included absorptions at 3250 and 3110 (NH), 2240 (C≡N), 1685 (C=O), 1350 and 1160 cm-1 (SO2).

後処理

  1. temperatureto maintain the temperature of the reaction mixture below -55° C
  2. temperatureto warm to ambient temperatures
  3. stirringstirred for an additional 18 hours
  4. extractionextracted with three portions of dichloromethane
  5. washThe organic solutions were washed with water
  6. dry with materialdried over MgSO4
  7. customevaporated

出典と根拠

ORDレコード
ord-c3d812d0afff4c14858b40667ee3d01e
出典データセット
uspto-grants-1983_01
特許番号
US04368067

関連ノート

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