Ammonium Chloride → (2-methylsulfanyl-pyrimidin-5-yl)-(7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-methanol

HRID 1403271ノート

反応式

HRID 1403271 の反応式
I[C:2]1[C:10]2[CH:9]=[N:8][CH:7]=[N:6][C:5]=2[N:4]([Si:11]([CH:18]([CH3:20])[CH3:19])([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13])[CH:3]=1.C([Mg]Cl)(C)C.[CH3:26][S:27][C:28]1[N:33]=[CH:32][C:31]([CH:34]=[O:35])=[CH:30][N:29]=1.[Cl-].[NH4+]>O1CCCC1>[CH3:26][S:27][C:28]1[N:33]=[CH:32][C:31]([CH:34]([C:2]2[C:10]3[CH:9]=[N:8][CH:7]=[N:6][C:5]=3[N:4]([Si:11]([CH:18]([CH3:20])[CH3:19])([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13])[CH:3]=2)[OH:35])=[CH:30][N:29]=1

参加物

6

反応物 4

HCID 25517Ammonium ChlorideHCID 31518652-(Methylthio)-5-pyrimidinecarbaldehydeHCID 509865195-Iodo-7-(triisopropylsilyl)-7H-pyrrolo-[2,3-d]pyrimidineHCID 178418918HCID 178418918、化合物

生成物 1

HCID 57963217(2-methylsulfanyl-pyrimidin-5-yl)-(7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-methanol収率 88.2%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
0 °C

実験手順

To a solution of 5-Iodo-7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidine (38, 4.00 g, 9.97 mmol) in 5.00 mL of tetrahydrofuran at −20° C. under nitrogen, isopropylmagnesium chloride (5.80 mL, 2.0 M in tetrahydrofuran, 11.6 mmol) was added slowly. The reaction was allowed to warm to 0° C. over 70 minutes, then cooled to −20° C., followed by addition of 2-methylsulfanyl-pyrimidine-5-carbaldehyde (54, 1.12 g, 7.26 mmol) in 15.0 mL of tetrahydrofuran. The reaction was allowed to warm to room temperature over 1 hour, then poured into aqueous ammonium chloride and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, filtered and the filtrate was concentrated under vacuum. The resulting material was purified by silica gel column chromatography eluting with 20-100% ethyl acetate in hexane. Appropriate fractions were combined and the solvents removed under vacuum to provide the desired compound (55, 2.75 g).

後処理

  1. temperaturecooled to −20° C.
  2. temperatureto warm to room temperature over 1 hour
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationthe filtrate was concentrated under vacuum
  7. customThe resulting material was purified by silica gel column chromatography
  8. washeluting with 20-100% ethyl acetate in hexane
  9. customthe solvents removed under vacuum

出典と根拠

ORDレコード
ord-1061bc50de3b4532ab25a095c54b3be0
出典データセット
uspto-grants-2014_12
特許番号
US08912204B2

反応ノート

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