Tetrahydrofuran → 5-Methoxy-4-[2-methyl-3-(3-methyl-2-butenyl)oxiranyl]-6-morpholinocarbonyloxy-1-oxaspiro[2,5]octane

HRID 481314ノート

反応式

HRID 481314 の反応式
[OH:1][CH:2]1[CH2:9][CH2:8][C:5]2([O:7][CH2:6]2)[CH:4]([C:10]2([CH3:18])[CH:12]([CH2:13][CH:14]=[C:15]([CH3:17])[CH3:16])[O:11]2)[CH:3]1[O:19][CH3:20].O1CCCC1.[H-].[Na+].[O:28]1[CH2:33][CH2:32][N:31]([C:34](Cl)=[O:35])[CH2:30][CH2:29]1>C(OCC)C>[CH3:20][O:19][CH:3]1[CH:2]([O:1][C:34]([N:31]2[CH2:32][CH2:33][O:28][CH2:29][CH2:30]2)=[O:35])[CH2:9][CH2:8][C:5]2([O:7][CH2:6]2)[CH:4]1[C:10]1([CH3:18])[CH:12]([CH2:13][CH:14]=[C:15]([CH3:17])[CH3:16])[O:11]1

参加物

6

反応物 4

HCID 8028TetrahydrofuranHCID 24758Sodium hydrideHCID 848104-Morpholinecarbonyl chlorideHCID 2190894-(1,5-Dimethyl-1,2-epoxy-4-hexenyl)-5-methoxy-1-oxaspiro(2.5)octan-6-ol

生成物 1

HCID 149888575-Methoxy-4-[2-methyl-3-(3-methyl-2-butenyl)oxiranyl]-6-morpholinocarbonyloxy-1-oxaspiro[2,5]octane収率 53.9%

試薬・触媒・溶媒 1

HCID 3283Diethyl Ether溶媒

実験手順

To a solution of 6-hydroxy-5-methoxy-4-[2-methyl-3-(3-methyl-2-butenyl)oxiranyl]-1-oxaspiro[2,5]octane (14.1 mg) in freshly distilled tetrahydrofuran (0.5 ml) was added sodium hydride (2.0 mg, 60% oil dispersion) in one portion at 5° C. The mixture was stirred for half an hour at the same temperature and then morpholinocarbonyl chloride (6.8 mg) was added thereto. The reaction mixture was stirred for 2 hours at ambient temperature and diluted with diethyl ether (2 ml). The organic layer was washed with water, dried and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (elution by diethyl ether/n-hexane=2/1) to yield 5-methoxy-4-[2-methyl-3-(3-methyl-2-butenyl)oxiranyl]-6-(morpholinocarbonyloxy)-1-oxaspiro[2,5]octane (9.7 mg) as an oil.

後処理

  1. stirringThe reaction mixture was stirred for 2 hours at ambient temperature
  2. washThe organic layer was washed with water
  3. customdried
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by column chromatography on silica gel (elution by diethyl ether/n-hexane=2/1)

出典と根拠

ORDレコード
ord-75f55a521f9d40d1a4075720e80ae829
出典データセット
uspto-grants-1998_08
特許番号
US05789405

反応ノート

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