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Water → 6-Nitro-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile

HRID 64358
ノート
印刷プレビュー

反応式

HRID 64358 の反応式
[N+:1]([C:4]1[CH:5]=[N:6][C:7]2[N:8]([N:10]=[C:11]([C:15]3[CH:20]=[CH:19][C:18]([O:21][C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)=[CH:17][CH:16]=3)[C:12]=2[C:13]#[N:14])[CH:9]=1)([O-:3])=[O:2].[BH4-].[Na+].O>C(O)C.C(Cl)Cl>[N+:1]([CH:4]1[CH2:9][N:8]2[N:10]=[C:11]([C:15]3[CH:16]=[CH:17][C:18]([O:21][C:22]4[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=4)=[CH:19][CH:20]=3)[C:12]([C:13]#[N:14])=[C:7]2[NH:6][CH2:5]1)([O-:3])=[O:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 962WaterHCID 4311764Sodium borohydrideHCID 117668253HCID 117668253、化合物

生成物 1

HCID 1369280626-Nitro-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile収率 55.3%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 6344
Dichloromethane
溶媒

実験手順

To a solution of 6-nitro-2-(4-phenoxyphenyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (90 mg, 0.25 mmol) in 2 mL of ethanol and 2 mL of DCM was added NaBH4 (19 mg, 0.5 mmol) at RT. After stirring at RT for 30 min, 5 mL of water was added. The mixture was concentrated. The residue was partitioned between 50 mL of DCM and 50 mL of brine. The combined organic layers were washed with brine (50 mL×2), dried over Na2SO4 and concentrated to afford 50 mg of 6-nitro-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (55%) as a yellow solid. MS (ESI) m/e [M+1]+ 362.1.

後処理

  1. concentrationThe mixture was concentrated
  2. customThe residue was partitioned between 50 mL of DCM and 50 mL of brine
  3. washThe combined organic layers were washed with brine (50 mL×2)
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-7180aa25459f4913a5a24e38de8fab99
出典データセット
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09447106B2

反応ノート

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