Lithium aluminum hydride → Rac-(1s,4s)-4-(hydroxymethyl)cyclohexanol

HRID 40970

반응식

HRID 40970 반응식
[O:1]=[C:2]1[CH2:7][CH2:6][CH:5]([C:8](OCC)=[O:9])[CH2:4][CH2:3]1.[AlH4-].[Li+]>CCOCC>[OH:9][CH2:8][CH:5]1[CH2:6][CH2:7][CH:2]([OH:1])[CH2:3][CH2:4]1

참가 물질

4

반응 조건

온도
0 °C

실험 절차

Ethyl 4-oxocyclohexanecarboxylate (2.0 g, 0.012 mol) was dissolved in ether (20.0 mL) and was then cooled at 0° C. Into the mixture was added 1 M lithium tetrahydroaluminate in ether (20 mL) and the resulting mixture was stirred at 0° C. for 2 hours. The reaction was quenched with water (2 mL) and 1 N NaOH (2 mL) and ether was added (100 mL). The precipitated solids were filtered off and the residue was used in the next reaction. 1H NMR (CDCl3): δ 4.02 and 3.75 (m, 1H), 3.45-3.61 (m, 2H), 2.02 (m, 2H), 1.84 (m, 1H), 1.52-1.80 (m, 2H), 1.44 (m, 1H), 1.32 (m, 2H), 1.03 (m, 1H).

후처리

  1. customThe reaction was quenched with water (2 mL) and 1 N NaOH (2 mL) and ether
  2. additionwas added (100 mL)
  3. filtrationThe precipitated solids were filtered off
  4. customthe residue was used in the next reaction

출처 및 근거

ORD 기록
ord-ff8014134170435393a9436ab470ad49
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08530485B2

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