Ethanol → 4-(5-Cyclopropyl-2-isoxazolin-3-yl)pyridine

HRID 1076692

반응식

HRID 1076692 반응식
C(Cl)(=O)C1C=C[N:5]=[CH:4][CH:3]=1.[CH:10]([CH:12]1[CH2:14][CH2:13]1)=[CH2:11].C([N:17]([CH2:20][CH3:21])[CH2:18][CH3:19])C.C([OH:24])C>>[CH:12]1([CH:10]2[O:24][N:5]=[C:4]([C:3]3[CH:19]=[CH:18][N:17]=[CH:20][CH:21]=3)[CH2:11]2)[CH2:14][CH2:13]1

참가 물질

5

반응물 4

HCID 702Ethanol2회HCID 8471TriethylamineHCID 136498EthenylcyclopropaneHCID 417436Pyridine-4-carbonyl chloride

생성물 1

HCID 215378854-(5-Cyclopropyl-2-isoxazolin-3-yl)pyridine

실험 절차

To a stirred mixture containing 3.8 g. of isonicotinoyl chloride, oxime hydrochloride and 1.4 g. of vinylcyclopropane in 100 ml. of ethanol is added dropwise over a 1 hour period, a solution 4.1 g. of triethylamine in 40 ml. of ethanol. The reaction is stirred for 1 hour and then the solvent is removed under reduced pressure. The residue is extracted with ether and the ether solution is dried over sodium sulfate. The solution is filtered and then the solvent is removed giving a yellow solid. The solid is recrystallized from ethanol giving white crystals, melting point 102°-108°C.

후처리

  1. additionTo a stirred mixture containing 3.8 g
  2. customthe solvent is removed under reduced pressure
  3. extractionThe residue is extracted with ether
  4. dry with materialthe ether solution is dried over sodium sulfate
  5. filtrationThe solution is filtered
  6. customthe solvent is removed
  7. customgiving a yellow solid
  8. customThe solid is recrystallized from ethanol giving white crystals, melting point 102°-108°C.

출처 및 근거

ORD 기록
ord-9d0a7d514cfc41bdb84fbc60e815f3de
출처 데이터셋
uspto-grants-1976_05
특허 번호
US03957805

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