Hydrochloric Acid → HCID 178490127、化合物

HRID 720768ノート

反応式

HRID 720768 の反応式
[Mg].II.Br[C:5]1[CH:10]=[C:9]([C:11]([CH3:14])([CH3:13])[CH3:12])[C:8]([O:15][CH3:16])=[C:7]([C:17]([CH3:20])([CH3:19])[CH3:18])[CH:6]=1.[P:21]([O-:26])(OC)OC.Cl>C1COCC1.C1(C)C=CC=CC=1.O>[C:17]([C:7]1[CH:6]=[C:5]([PH:21](=[O:26])[C:5]2[CH:10]=[C:9]([C:11]([CH3:13])([CH3:14])[CH3:12])[C:8]([O:15][CH3:16])=[C:7]([C:17]([CH3:20])([CH3:19])[CH3:18])[CH:6]=2)[CH:10]=[C:9]([C:11]([CH3:14])([CH3:13])[CH3:12])[C:8]=1[O:15][CH3:16])([CH3:20])([CH3:19])[CH3:18]

参加物

9

反応物 5

HCID 313Hydrochloric AcidHCID 807IodineHCID 5462224MagnesiumHCID 136915415-Bromo-1,3-di-tert-butyl-2-methoxybenzeneHCID 21884954Dimethylphosphite

生成物 1

HCID 178490127HCID 178490127、化合物収率 27.2%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 1140Toluene溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
5 °C

実験手順

Under argon atmosphere, a solution of magnesium (4.0 g, 0.95 equivalents) and a small amount of iodine in THF (50 mL) was stirred at room temperature for 1 hour. After 4-bromo-2,6-di-tert-butylanisole (52 g, 0.175 mol) synthesized in Reference Example 2 was added at 46° C. to 53° C. thereto, the mixture was stirred at 5° C. for 1 hour. Then, dimethyl phosphite (11.4 g, 0.52 equivalents) was added and the mixture was stirred at 5° C. for 1 hour. After water (50 mL) was added at 3° C. and toluene (50 mL) and 6M-HCl (20 mL) were then added, the mixture was stirred at room temperature for 30 minutes. The reaction solution was allowed to separate into layers. An organic layer was washed successively with water (20 mL), a 5% NaHCO3 aqueous solution (20 mL) and a 5% NaCl aqueous solution (20 mL), dried over anhydrous magnesium sulfate and then naturally filtered. The filtrate was concentrated under reduced pressure. The residue was recrystallized from heptane to obtain the title compound (11.6 g, pale yellowish white crystal). Yield 20.5%, mp. 166.1° C.

後処理

  1. additionwas added at 46° C. to 53° C.
  2. stirringthe mixture was stirred at 5° C. for 1 hour
  3. stirringthe mixture was stirred at room temperature for 30 minutes
  4. customto separate into layers
  5. washAn organic layer was washed successively with water (20 mL)
  6. dry with materiala 5% NaHCO3 aqueous solution (20 mL) and a 5% NaCl aqueous solution (20 mL), dried over anhydrous magnesium sulfate
  7. filtrationnaturally filtered
  8. concentrationThe filtrate was concentrated under reduced pressure
  9. customThe residue was recrystallized from heptane

出典と根拠

ORDレコード
ord-ac34e7535139423385828f0f73ee2ea8
出典データセット
uspto-grants-2006_11
特許番号
US07135582B2

反応ノート

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