Triethylamine → HCID 18753299、化合物

HRID 1838207ノート

反応式

HRID 1838207 の反応式
[CH3:1][C:2]1[NH:3][C:4](=O)[C:5]([C:14]([NH2:16])=O)=[N:6][C:7]=1[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.C(N(CC)CC)C.P(Cl)(Cl)(Cl)(Cl)[Cl:26]>P(Cl)(Cl)(Cl)=O>[Cl:26][C:4]1[C:5]([C:14]#[N:16])=[N:6][C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)=[C:2]([CH3:1])[N:3]=1

参加物

5

反応物 3

HCID 8471TriethylamineHCID 24819Phosphorus pentachlorideHCID 69035433HCID 69035433、化合物

生成物 1

HCID 18753299HCID 18753299、化合物

試薬・触媒・溶媒 1

HCID 24813Phosphorus oxychloride溶媒

実験手順

In analogy to the procedure described in example 75a-c, 1-phenyl-1,2-propanedione and 2-aminomalonamide were heated in an aqueous solution to give 5-methyl-3-oxo-6-phenyl-3,4-dihydro-pyrazine-2-carboxylic acid amide. Then, the 5-methyl-3-oxo-6-phenyl-3,4-dihydro-pyrazine-2-carboxylic acid amide was treated with triethylamine and phosphorus pentachloride in phosphorus oxychloride at reflux to give 3-chloro-5-methyl-6-phenyl-pyrazine-2-carbonitrile. The 3-chloro-5-methyl-6-phenyl-pyrazine-2-carbonitrile was finally treated with 1-(4-fluorophenyl)piperazine and N-ethyldiiso-propyl-amine in N,N-dimethylformamide at room temperature to yield the 4-(4-fluoro-phenyl)-6′-methyl-5′-phenyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyrazinyl-3′-carbonitrile as yellow solid; m.p. 117-120° C.; MS: 374 (M+H)+.

後処理

  1. temperatureat reflux

出典と根拠

ORDレコード
ord-f307964d32104b00993ff0d946332aa0
出典データセット
uspto-grants-2004_01
特許番号
US06673795B2

反応ノート

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