Hydrochloric Acid → trans-4-[1-methyl-2-phenyl-1H-indol-3-yl]-3-buten-2-one

HRID 547979

反応式

HRID 547979 の反応式
[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[C:3]1[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.CO[CH:19](OC)[CH2:20][C:21](=[O:23])[CH3:22].Cl>C(O)(=O)C>[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](/[CH:19]=[CH:20]/[C:21](=[O:23])[CH3:22])=[C:3]1[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 770951-Methyl-2-phenylindoleHCID 2285484,4-Dimethoxy-2-butanone

生成物 1

HCID 11254370trans-4-[1-methyl-2-phenyl-1H-indol-3-yl]-3-buten-2-one収率 89%

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒

実験手順

2.07 g of 1-methyl-2-phenyl-1H-indole, 1.32 g of 1,1-dimethoxy-3-butanone and 12 mL of acetic acid were mixed, then, 313 mg of 35 wt % hydrochloric acid was added into the mixture at room temperature, the added mixture was stirred for about 14 hours at the same temperature to cause a reaction. At a time point about 10 minutes after starting of stirring and reaction, blue solid precipitated to render stirring difficult. Therefore, 8 mL of acetic acid was added. After completion of the reaction, 60 mL of water was added dropwise, and the precipitated crystals were filtrated. The crystals were washed with 10 vol % methanol/water, then, dried to obtain 2.44 g of trans-4-[1-methyl-2-phenyl-1H-indol-3-yl]-3-buten-2-one (blue green solid). Yield: 89%.

後処理

  1. customa reaction
  2. customAt a time point about 10 minutes
  3. stirringof stirring
  4. customreaction, blue solid
  5. customprecipitated
  6. stirringto render stirring difficult
  7. additionTherefore, 8 mL of acetic acid was added
  8. customAfter completion of the reaction, 60 mL of water
  9. additionwas added dropwise
  10. filtrationthe precipitated crystals were filtrated
  11. washThe crystals were washed with 10 vol % methanol/water
  12. customdried

出典と根拠

ORDレコード
ord-0f619653e2ff42dfa5ec1ae7726cc3f0
出典データセット
uspto-grants-2011_05
特許番号
US07939674B2

関連ノート

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