Sodium Hydroxide → t-Butyldimethylsilyloxy-2,6-dipropyl-4-(2-hydroxyethyl)-benzene

HRID 964457

反応式

HRID 964457 の反応式
[Si:1]([O:8][C:9]1[C:14]([CH2:15][CH2:16][CH3:17])=[CH:13][C:12]([CH:18]=[CH2:19])=[CH:11][C:10]=1[CH2:20][CH2:21][CH3:22])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].B.C1C[O:27]CC1.[O-][O-].[Na+].[Na+].[OH-].[Na+]>C1COCC1.C(OCC)(=O)C>[Si:1]([O:8][C:9]1[C:10]([CH2:20][CH2:21][CH3:22])=[CH:11][C:12]([CH2:18][CH2:19][OH:27])=[CH:13][C:14]=1[CH2:15][CH2:16][CH3:17])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

参加物

7

反応物 4

HCID 14798Sodium HydroxideHCID 14803Sodium peroxideHCID 2723981Borane;tetrahydrofuranHCID 19080390t-Butyldimethylsilyloxy-2,6-dipropyl-4-vinyl benzene

生成物 1

HCID 19080442t-Butyldimethylsilyloxy-2,6-dipropyl-4-(2-hydroxyethyl)-benzene

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 475 mg (1.48 mmol) of the product of Step B in 3 mL of THF at 0° C. was added 1.6 mL (1.62 mmol) of a 1N borane/THF solution. After 1 hour TLC indicated that the starting material had been consumed. The reaction mixture was quenched with 3 drops of methanol and then 0.70 mL (6.22 mmol) of 30% sodium peroxide and 6.2 mL (6.2 mmol) of 1N sodium hydroxide were added. After two hours the reaction mixture was diluted with ethyl acetate and washed with water and brine. The organic layer was then dried over sodium sulfate, filtered and concentrated. Flash chromatography (silica gel, hexane/ethyl acetate 4:1) gave 265 mg of the title compound as a clear oil.

後処理

  1. customhad been consumed
  2. customThe reaction mixture was quenched with 3 drops of methanol
  3. washwashed with water and brine
  4. dry with materialThe organic layer was then dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-3be3864fbe1a499ba250d3597a74a1fd
出典データセット
uspto-grants-1998_06
特許番号
US05767310

関連ノート

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