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Sodium Hydroxide → Methyl rac-1',2',3',4',5',12'-hexahydro-5',12'-dioxospiro[1,3-dithiolane-2,4'-naphthacene]-2'-carboxylate

HRID 647651
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인쇄 미리보기

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HRID 647651 반응식
C(O[CH:5]1[C:22]2[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH:16](OC(=O)C)[CH:15]2[CH:6]1[C:7](=[O:36])[C:8]1[C:9]3([S:35][CH2:34][CH2:33][S:32]3)[CH2:10][CH:11]([C:28]([O:30][CH3:31])=[O:29])[CH2:12][C:13]=1[C:14]2=[O:27])(=O)C.[OH-].[Na+]>CO.O>[O:36]=[C:7]1[C:6]2[C:15](=[CH:16][C:17]3[C:22]([CH:5]=2)=[CH:21][CH:20]=[CH:19][CH:18]=3)[C:14](=[O:27])[C:13]2[CH2:12][CH:11]([C:28]([O:30][CH3:31])=[O:29])[CH2:10][C:9]3([S:32][CH2:33][CH2:34][S:35]3)[C:8]1=2
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참가 물질

5

반응물 2

HCID 14798Sodium HydroxideHCID 20283276Methyl rac-1',2',3',4',5',5a',6',11',11a',12'-decahydro-6',11'-diacetoxy-5',12'-dioxospiro[1,3-dithiolane-2,4'-naphthacene]-2'-carboxylate

생성물 1

HCID 20283279Methyl rac-1',2',3',4',5',12'-hexahydro-5',12'-dioxospiro[1,3-dithiolane-2,4'-naphthacene]-2'-carboxylate수율 73.1%

시약·촉매·용매 2

HCID 887Methanol용매
HCID 962
Water
용매

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온도
20 °C

실험 절차

A mixture of 26.5 mg (0.05 mmol) of methyl rac-1',2',3',4',5',5a',6',11',11a',12'-decahydro-6',11'-diacetoxy-5',12'-dioxospiro[1,3-dithiolane-2,4'-naphthacene]-2'-carboxylate and 5 mg (0.125 mmol) of sodium hydroxide in 2 ml of methanol was stirred at 20° C. for 1.5 hours. The mixture was then diluted with 10 ml of water and extracted with two 10 ml portions of dichloromethane. The combined dichloromethane extracts were washed with 10 ml of water, dried over magnesium sulphate and evaporated to dryness to give 15 mg (73%) of methyl rac-1',2',3',4',5',12'-hexahydro-5',12'-dioxospiro[1,3-dithiolane-2,4'-naphthacene]-2'-carboxylate in the form of a bright yellow solid of melting point 216° C.

후처리

  1. extractionextracted with two 10 ml portions of dichloromethane
  2. washThe combined dichloromethane extracts were washed with 10 ml of water
  3. dry with materialdried over magnesium sulphate
  4. customevaporated to dryness

출처 및 근거

ORD 기록
ord-7e47152b8d094cf0bdb8705ed5bf18a2
출처 데이터셋
uspto-grants-1983_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04409391

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