Potassium Carbonate → 2-Ethyl-3,6,6-trimethyl-1-crotonoyl-2-cyclohexene

HRID 328665노트

반응식

HRID 328665 반응식
[CH2:1]([C:3]1[CH:4]([C:12](=[O:16])[CH2:13][CH:14]=[CH2:15])[C:5]([CH3:11])([CH3:10])[CH2:6][CH2:7][C:8]=1[CH3:9])[CH3:2].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH2:1]([C:3]1[CH:4]([C:12](=[O:16])/[CH:13]=[CH:14]/[CH3:15])[C:5]([CH3:11])([CH3:10])[CH2:6][CH2:7][C:8]=1[CH3:9])[CH3:2]

참가 물질

4

반응물 2

HCID 11430Potassium CarbonateHCID 214396681-(2-Ethyl-3,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-1-one

생성물 1

HCID 214396692-Ethyl-3,6,6-trimethyl-1-crotonoyl-2-cyclohexene수율 91.5%

시약·촉매·용매 1

HCID 180Acetone용매

실험 절차

A suspension of 3.5 g (15.9 mmol) of 2-ethyl-3,6,6-trimethyl-1-[but-3-enoyl]-2-cyclohexene and 2.0 g of potassium carbonate in 40 ml of acetone is stirred at room temperature under nitrogen for 24 hours. The salt is removed by filtration and the filtrate concentrated. After fractional distillation, the residue yields 3.2 g (91.5%) of 2-ethyl-3,6,6-trimethyl-1-crotonoyl-2-cyclohexene; boiling point 59°-60° C/0.04 mm Hg; nD 20 = 1.4952.

후처리

  1. customThe salt is removed by filtration
  2. concentrationthe filtrate concentrated
  3. distillationAfter fractional distillation

출처 및 근거

ORD 기록
ord-ac78d4c37a6b4c37a7e2e3b07f04b601
출처 데이터셋
uspto-grants-1977_04
특허 번호
US04018718

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