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llms.txt · MCP 가이드개인정보처리방침 · 이용약관 · 지원v1.8.0
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1-Bromo-1-propene → 2,6,6-TRIMETHYL-alpha-n-PROPENYL-1,3-CYCLOHEXADIENE-1-METHANOL

HRID 127148
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HRID 127148 반응식
C(=O)=O.[CH:4](O)([CH3:6])[CH3:5].[Li].[Li].C(OCC)C.BrC=CC.[CH3:19][C:20]1[CH:25]=[CH:24][CH2:23][C:22]([CH3:27])([CH3:26])[C:21]=1[CH:28]=[O:29].[Cl-].[NH4+]>C(OCC)C>[CH3:19][C:20]1[CH:25]=[CH:24][CH2:23][C:22]([CH3:26])([CH3:27])[C:21]=1[CH:28]([CH:5]=[CH:4][CH3:6])[OH:29]
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참가 물질

8

반응물 6

HCID 115331-Bromo-1-propene2회HCID 25517Ammonium ChlorideHCID 61041Safranal2회HCID 3028194LithiumHCID 86586944Isopropanol carbon dioxideHCID 131712026Lithium diethyl ether

생성물 1

HCID 54483091
2,6,6-TRIMETHYL-alpha-n-PROPENYL-1,3-CYCLOHEXADIENE-1-METHANOL

시약·촉매·용매 1

HCID 3283Diethyl Ether용매3회

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온도
-10 °C

실험 절차

Into a 500 ml reaction flask equipped with immersion thermometer, mechanical stirrer, 250 ml addition funnel, Freidrich's condenser, dry-ice/isopropyl alcohol bath and gas bubbler is placed 1.9 grams (0.28 gram atoms) of lithium wire cut up (44.7 cm in length), and 100 ml anhydrous diethyl ether. The lithium/diethyl ether mixture is cooled with stirred to -10° C. 15.7 Grams (0.13 moles) of 1-bromo-1-propene dissolved in 40 ml diethyl ether is then added dropwise from the addition funnel while maintaining the reaction temperature at from -10° up to -5° C. Following addition of the 1-bromo-1-propene, the reaction mass is stirred for 30 minutes at 0° C. and for a period of 1.5 hours at 20° C. The reaction mass is then chilled to -20° C. and 15.0 grams of Safranal (0.10 moles) is approximately 60 ml diethyl ether is added to the reaction mass dropwise while maintaining the temperature between -20° and -15° C. Following additional of the safranal, the reaction mass is stirred at about -20° C. for a period of 15 minutes and at room temperature (20° C.) for a period of 2.5 hours. The reaction mass is monitored using GLC at 30 minutes, 90 minutes and 150 minutes, at which point, the reaction mass is poured into saturated aqueous ammonium chloride. The resulting mixture is then washed with diethyl ether and the aqueous phase is separated from the organic phase. The organic phase is dried and concentrated to 18.67 grams of oil. 1.0 Grams of crude is set aside for silica gel chromatography; 0.1 grams is set aside for GLC; and the remaining 17.56 grams is distilled in a vacuum distillation apparatus after adding 0.9 grams of sodium carbonate and 19.0 grams of Primol® yielding the following fractions:

후처리

  1. customInto a 500 ml reaction flask
  2. additionis then added dropwise from the addition funnel
  3. temperaturewhile maintaining the reaction temperature at from -10° up to -5° C
  4. stirringthe reaction mass is stirred for 30 minutes at 0° C. and for a period of 1.5 hours at 20° C
  5. temperatureThe reaction mass is then chilled to -20° C.
  6. additionis added to the reaction mass dropwise
  7. temperaturewhile maintaining the temperature between -20° and -15° C
  8. stirringthe reaction mass is stirred at about -20° C. for a period of 15 minutes and at room temperature (20° C.) for a period of 2.5 hours
  9. customat 30 minutes
  10. washThe resulting mixture is then washed with diethyl ether
  11. customthe aqueous phase is separated from the organic phase
  12. customThe organic phase is dried
  13. concentrationconcentrated to 18.67 grams of oil
  14. distillationand the remaining 17.56 grams is distilled in a vacuum distillation apparatus
  15. additionafter adding 0.9 grams of sodium carbonate and 19.0 grams of Primol®
  16. customyielding the following fractions

출처 및 근거

ORD 기록
ord-785b421ffbbe44fa85a451bd66ca30f9
출처 데이터셋
uspto-grants-1981_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04255293

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