Acetic Anhydride → HCID 86745022, 화합물

HRID 2249207노트

반응식

HRID 2249207 반응식
[CH3:1][O:2][C:3]1[CH:9]=[C:8]([OH:10])[C:7]([CH2:11][CH:12]=[C:13]([CH3:15])[CH3:14])=[CH:6][C:4]=1[OH:5].[C:16]([O:19]C(=O)C)(=[O:18])[CH3:17]>N1C=CC=CC=1>[C:16]([OH:19])(=[O:18])[CH3:17].[C:16]([OH:19])(=[O:18])[CH3:17].[CH3:1][O:2][C:3]1[CH:9]=[C:8]([OH:10])[C:7]([CH2:11][CH:12]=[C:13]([CH3:15])[CH3:14])=[CH:6][C:4]=1[OH:5]

참가 물질

4

반응물 2

HCID 7918Acetic AnhydrideHCID 3344962-Methoxy-5-(3-methylbut-2-enyl)benzene-1,4-diol

생성물 1

HCID 86745022HCID 86745022, 화합물수율 78%

시약·촉매·용매 1

HCID 1049Pyridine용매

실험 절차

A mixture of 2-methoxy-5-(3-methyl-2-butenyl)hydroquinone (2.35 g) and acetic anhydride (4.6 g) in dry pyridine (20 ml) was stirred for 2 hours at ambient temperature. The mixture was poured into ice water (50 ml) and the separated oil was extracted twice with diethyl ether. The combined extracts were washed twice with diluted hydrochloric acid, dried, and concentrated in vacuo to give a white solid, which was recrystallized from n-hexane to yield 2-methoxy-5-(3-methyl-2-butenyl)hydroquinone diacetate as white crystals (2.89 g).

후처리

  1. extractionthe separated oil was extracted twice with diethyl ether
  2. washThe combined extracts were washed twice with diluted hydrochloric acid
  3. customdried
  4. concentrationconcentrated in vacuo
  5. customto give a white solid, which
  6. customwas recrystallized from n-hexane

출처 및 근거

ORD 기록
ord-7142702301024cee9392a938f4ca62b5
출처 데이터셋
uspto-grants-1991_08
특허 번호
US05043354

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