Tert-Butyl nitrite → 9-Benzyl-9H-purine

HRID 1297153

反応式

HRID 1297153 の反応式
[CH2:1]([N:8]1[CH:16]=[N:15][C:14]2[C:9]1=[N:10][CH:11]=[N:12][C:13]=2N)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.N(OC(C)(C)C)=O>C1COCC1.C(Cl)(Cl)Cl>[CH2:1]([N:8]1[CH:16]=[N:15][C:14]2[C:9]1=[N:10][CH:11]=[N:12][CH:13]=2)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

5

反応物 2

HCID 10906Tert-Butyl nitriteHCID 202629-(Phenylmethyl)-9H-purin-6-amine

生成物 1

HCID 2347019-Benzyl-9H-purine

試薬・触媒・溶媒 2

HCID 6212Chloroform溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
62.5 °C

実験手順

To a stirred suspension of 9-benzyladenine (6) (22.0 g, 97.6 mmol) in anhydrous THF (500 mL) was added t-butyl nitrite (9.34 g, 478.5 mmol) and the reaction mixture heated under an atmosphere of nitrogen at 60-65° C. for 4 h. THF and the excess reagent were distilled off and the residue obtained redissolved in chloroform (100 mL) and washed with brine solution (2×50 mL). The chloroform layer was dried over anhydrous sodium sulfate and distilled off to give a reddish oil, which was purified by flash chromatography on silica gel using EtOAc/hexane (8:2) for elution. Yield 10.68 g (42.3%). Mp 99-100° C. 1H NMR (CDCl3): δ 5.49 (s, 2H, CH2), 7.34-7.40 (m, 5H, Ar—H), 8.10 (s, 1H, purine C6—H), 9.06 (s, 1H, purine C8H), 9.20 (s, 1H, purine C2H).

後処理

  1. distillationTHF and the excess reagent were distilled off
  2. customthe residue obtained
  3. washwashed with brine solution (2×50 mL)
  4. dry with materialThe chloroform layer was dried over anhydrous sodium sulfate
  5. distillationdistilled off
  6. customto give a reddish oil, which
  7. customwas purified by flash chromatography on silica gel
  8. washfor elution

出典と根拠

ORDレコード
ord-260b257c25d94c08a3539aa93c66f71e
出典データセット
uspto-grants-2007_07
特許番号
US07250421B2

関連ノート

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