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

HRID 2163262

반응식

HRID 2163262 반응식
[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]

참가 물질

4

반응물 1

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

생성물 1

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

시약·촉매·용매 2

HCID 178418406HCID 178418406, 화합물촉매HCID 180Acetone용매

실험 절차

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 was 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°.

후처리

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

출처 및 근거

ORD 기록
ord-0432a924a0b249439b7a8bca4f8c889b
출처 데이터셋
uspto-grants-1979_01
특허 번호
US04132847

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