2-Hydroxymethyl-3-(5-carboethoxypentyloxy)-4-pyrone → 2-Formyl-3-(5-carboethoxypentyloxy)-4-pyrone

HRID 1856395

反応式

HRID 1856395 の反応式
[OH:1][CH2:2][C:3]1[O:4][CH:5]=[CH:6][C:7](=[O:20])[C:8]=1[O:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][C:15]([O:17][CH2:18][CH3:19])=[O:16]>CC(C)=O.[O-2].[O-2].[Mn+4]>[CH:2]([C:3]1[O:4][CH:5]=[CH:6][C:7](=[O:20])[C:8]=1[O:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][C:15]([O:17][CH2:18][CH3:19])=[O:16])=[O:1]

参加物

4

反応物 1

HCID 233448552-Hydroxymethyl-3-(5-carboethoxypentyloxy)-4-pyrone

生成物 1

HCID 233448502-Formyl-3-(5-carboethoxypentyloxy)-4-pyrone

試薬・触媒・溶媒 2

HCID 178418406HCID 178418406、化合物触媒HCID 180Acetone溶媒

実験手順

To a solution of 6.35 g (0.022 mole) of 2-hydroxymethyl-3-(5-carboethoxypentyloxy)-4-pyrone in 250 ml of acetone was added 12 g of activated manganese dioxide. The resulting suspension ws stirred for 3 hr, at which time the mixture was filtered and the filtrate evaporated to an oil. The oil was triturated with hexane/ether to give the crystalline aldehyde, 2-formyl-3-(5-carboethoxypentyloxy)-4-pyrone, weighing 4.1 g (65%), m.p. 32-34.5°.

後処理

  1. filtrationwas filtered
  2. customthe filtrate evaporated to an oil
  3. customThe oil was triturated with hexane/ether

出典と根拠

ORDレコード
ord-4356667a838447e7abb965d85e45cd5a
出典データセット
uspto-grants-1980_08
特許番号
US04219483

関連ノート

読み込み中…