m-Chloroperbenzoic acid → 2,3-Epoxypropyl 6,7-epoxy-5,6,7,8-tetrahydro-1-naphthyl ether

HRID 263317

반응식

HRID 263317 반응식
[O:1]1[CH2:15][CH:2]1[CH2:3][O:4][C:5]1[C:14]2[CH2:13][CH:12]=[CH:11][CH2:10][C:9]=2[CH:8]=[CH:7][CH:6]=1.ClC1C=CC=C(C(OO)=[O:24])C=1>C(Cl)Cl>[O:24]1[CH:12]2[CH:11]1[CH2:10][C:9]1[CH:8]=[CH:7][CH:6]=[C:5]([O:4][CH2:3][CH:2]3[O:1][CH2:15]3)[C:14]=1[CH2:13]2

참가 물질

4

반응물 2

HCID 70297m-Chloroperbenzoic acidHCID 110526861-(2,3-Epoxypropoxy)-5,8-dihydronaphthalene

생성물 1

HCID 124457662,3-Epoxypropyl 6,7-epoxy-5,6,7,8-tetrahydro-1-naphthyl ether

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a well-stirred solution of 7 g. (0.03 m.) of 1-(2,3-epoxy-propoxy)-5,8-dihydro-naphthalene (prepared as described in application Ser. No. 768,176, filed Oct. 16, 1968, issued Oct. 13, 1970, as U.S. Pat. No. 3,534,085) in 60 ml. of CH2Cl2, 7.1 g. (0.03 m.) of 85% m-chloroperbenzoic acid in 100 ml. CH2Cl2 is added dropwise at such a rate that the temperature is maintained between 25° to 30° C. The mixture is stirred overnight at room temperature. The resulting precipitate (m-chlorobenzoic acid) is filtered off and the CH2Cl2 extract is washed successively with sat. NaHCO3 solution, and water. After drying (MgSO4), the solution is evaporated in vacuo to give 7.2 g. (95%) of oil which solidifies. A sample recrystallized from ether gives white needles, m.p. 85°-87°; λNujolmax 1330-1350 cm-1 (epoxy), ƱCDCl3 absence of vinyl protons 4.0-4.2 region.

후처리

  1. temperatureis maintained between 25° to 30° C
  2. filtrationThe resulting precipitate (m-chlorobenzoic acid) is filtered off
  3. extractionthe CH2Cl2 extract
  4. washis washed successively with sat. NaHCO3 solution, and water
  5. dry with materialAfter drying (MgSO4)
  6. customthe solution is evaporated in vacuo
  7. customto give 7.2 g
  8. customA sample recrystallized from ether
  9. customgives white needles, m.p. 85°-87°

출처 및 근거

ORD 기록
ord-b5fad79507124eecaa079e849d34d5a4
출처 데이터셋
uspto-grants-1979_05
특허 번호
US04156789

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