N-Methoxy-N-methylbenzamide → 1-Phenyl-3-[3-(4-methoxybenzyloxy)phenyl]-2-propyne-1-one

HRID 1757501

反応式

HRID 1757501 の反応式
C[Si](C)(C)N[Si](C)(C)C.[Li].[CH3:11][O:12][C:13]1[CH:28]=[CH:27][C:16]([CH2:17][O:18][C:19]2[CH:20]=[C:21]([C:25]#[CH:26])[CH:22]=[CH:23][CH:24]=2)=[CH:15][CH:14]=1.CON(C)[C:32](=[O:39])[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1>O1CCCC1>[C:33]1([C:32](=[O:39])[C:26]#[C:25][C:21]2[CH:22]=[CH:23][CH:24]=[C:19]([O:18][CH2:17][C:16]3[CH:15]=[CH:14][C:13]([O:12][CH3:11])=[CH:28][CH:27]=3)[CH:20]=2)[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1

参加物

5

反応物 3

HCID 569575N-Methoxy-N-methylbenzamideHCID 152811221-Ethynyl-3-((4-methoxybenzyl)oxy)benzeneHCID 57426343Lithium bis(trimethylsilyl)amide

生成物 1

HCID 98409751-Phenyl-3-[3-(4-methoxybenzyloxy)phenyl]-2-propyne-1-one

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒3 回

反応条件

温度
0 °C

実験手順

Place lithium hexamethyldisilazane (2 mL of a 1M solution in tetrahydrofuran, 2 mmol) and tetrahydrofuran (8 mL) under an argon atmosphere and cool to 0° C. Add a solution of 3-(4methoxybenzyloxy)phenylacetylene (0.48 g, 2 mmol) in tetrahydrofuran and stir the brown solution for 45 minutes at 0° C. Add N-methoxy-N-methylbenzamide (0.4 g, 2.4 mmol), remove the cooling bath andstir at room temperature for 1 hour. Partition the mixture between ethyl ether and water, separate the organic phase and dry (MgSO4). Filter and evaporate the solvent in vacuo to yield an oil. Filter through silica gel and elute with 10% ethyl acetate/hexane to yield a crude solid. Recrystallize (hexane, ethyl ether) to yield 0.26 g (lst crop) and 0.15 g (2nd crop) of the title compound; mp 79°-80 C.

後処理

  1. customPartition the mixture between ethyl ether and water
  2. customseparate the organic phase
  3. dry with materialdry (MgSO4)
  4. filtrationFilter
  5. customevaporate the solvent in vacuo
  6. customto yield an oil
  7. filtrationFilter through silica gel
  8. washelute with 10% ethyl acetate/hexane
  9. customto yield a crude solid
  10. customRecrystallize (hexane, ethyl ether)

出典と根拠

ORDレコード
ord-48780852258f42e2936b931423a3798e
出典データセット
uspto-grants-1995_08
特許番号
US05446068

関連ノート

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