Sodium Bicarbonate → 3a-Methyl-5,6-epoxy-6-[2-(2-methyl-[1,3]dioxolan-2-yl)-ethyl]-1,2,4,5,9a,9b-hexahydro-3aH-9-oxa-cyclopenta[a]naphthalene-3,7-dione

HRID 2358278노트

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HRID 2358278 반응식
[CH3:1][C:2]12[C:23](=[O:24])[CH2:22][CH2:21][CH:3]1[CH:4]1[C:9]([CH2:10][CH2:11]2)=[C:8]([CH2:12][CH2:13][C:14]2([CH3:19])[O:18][CH2:17][CH2:16][O:15]2)[C:7](=[O:20])[CH2:6][O:5]1.C(=O)(O)[O-:26].[Na+]>ClCCl>[CH3:1][C:2]12[C:23](=[O:24])[CH2:22][CH2:21][CH:3]1[CH:4]1[CH:9]3[CH:10]([O:26][C:8]3([CH2:12][CH2:13][C:14]3([CH3:19])[O:15][CH2:16][CH2:17][O:18]3)[C:7](=[O:20])[CH2:6][O:5]1)[CH2:11]2

참가 물질

4

반응물 2

HCID 516892Sodium BicarbonateHCID 684591043a-Methyl-6-[2-(2-methyl-[1,3]dioxolan-2-yl)-ethyl]-1,2,4,5,9a,9b-hexahydro-3aH-9-oxa-cyclopenta[a]naphthalene-3,7-dione

생성물 1

HCID 684573743a-Methyl-5,6-epoxy-6-[2-(2-methyl-[1,3]dioxolan-2-yl)-ethyl]-1,2,4,5,9a,9b-hexahydro-3aH-9-oxa-cyclopenta[a]naphthalene-3,7-dione

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

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온도
-30 °C

실험 절차

A solution of 70% meta-perobenzoic acid (939 mg, 3.8 mmol) in dichloromethane (20 mL) was added dropwise to a suspension of 3a-methyl-6-[2-(2-methyl-[1,3]dioxolan-2-yl)-ethyl]-1,2,4,5,9a,9b-hexahydro-3aH-9-oxa-cyclopenta[a]naphthalene-3,7-dione (800 mg, 2.53 mmol) and sodium bicarbonate (213 mg, 3.8 mmol) in dichloromethane (51 mL) at −30° C. The resulting mixture was stirred at −30° C. for 16 h. The reaction was then quenched with saturated solution of sodium thiosulfate. The resulting mixture was treated with saturated sodium carbonate solution and then extracted with dichloromethane (2×50 mL). The combined organic layer was dried with magnesium sulfate. The resulting solution was filtered and concentrated to yield the title compound as a white foam.

후처리

  1. customThe reaction was then quenched with saturated solution of sodium thiosulfate
  2. additionThe resulting mixture was treated with saturated sodium carbonate solution
  3. extractionextracted with dichloromethane (2×50 mL)
  4. dry with materialThe combined organic layer was dried with magnesium sulfate
  5. filtrationThe resulting solution was filtered
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-b3dfd468cd5d4409b9566c3dc1c77e5c
출처 데이터셋
uspto-grants-2010_07
특허 번호
US07763648B2

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