Diethyl Ether → 4-[3-Hydroxy-3-methyl-1-(naphthalen-1-yl)butyl]benzene-1,3-diol

HRID 1679526

反応式

HRID 1679526 の反応式
[CH3:1][Li].[OH:3][C:4]1[CH:13]=[C:12]2[C:7]([CH:8]([C:15]3[C:24]4[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=4)[CH:18]=[CH:17][CH:16]=3)[CH2:9]C(=O)[O:11]2)=[CH:6][CH:5]=1.CC[O:27][CH2:28][CH3:29]>>[OH:11][C:12]1[CH:13]=[C:4]([OH:3])[CH:5]=[CH:6][C:7]=1[CH:8]([C:15]1[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH:18]=[CH:17][CH:16]=1)[CH2:9][C:28]([CH3:29])([OH:27])[CH3:1]

参加物

4

反応物 3

HCID 3283Diethyl Ether2 回HCID 205705223,4-Dihydro-7-hydroxy-4-(1-naphthyl)coumarinHCID 178418348HCID 178418348、化合物

生成物 1

HCID 205705454-[3-Hydroxy-3-methyl-1-(naphthalen-1-yl)butyl]benzene-1,3-diol

実験手順

To a stirred solution of methyl lithium in ether (80 ml, 1.9M solution) at ambient temperature under nitrogen was added portionwise over 0.5 hour finely divided 3,4-dihydro-7-hydroxy-4-(1-naphthyl)coumarin (7.52 g). The ether boiled during the addition and the solid material gradually dissolved. After the addition was complete the solution was boiled under reflux for 4 hours then cooled and poured into acid. The ether extract yielded 4-(2,4-dihydroxyphenyl)-2-methyl-4-(1-naphthyl)-2-butanol which was dissolved in glacial acetic acid (55 ml) and boiled under reflux overnight. The product was poured into water (200 ml) and extracted into ether. The ether extract was washed with water and aqueous sodium bicarbonate then dried (magnesium sulphate). Removal of the solvent gave the title compound (7.70 g) as a foam containing some ether.

後処理

  1. dissolutionthe solid material gradually dissolved
  2. additionAfter the addition
  3. temperatureunder reflux for 4 hours
  4. temperaturethen cooled
  5. additionpoured into acid
  6. extractionThe ether extract

出典と根拠

ORDレコード
ord-3f932678f462463f9dda9e0dc46fa41b
出典データセット
uspto-grants-1978_03
特許番号
US04080335

関連ノート

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