Water → Methyl alpha-Methyl-9-nitro-9,10-dihydroanthracene-10-acetate

HRID 542996

반응식

HRID 542996 반응식
[N+:1]([C:4]1[C:5]2[C:10]([CH:11]=[C:12]3[C:17]=1[CH:16]=[CH:15][CH:14]=[CH:13]3)=[CH:9][CH:8]=[CH:7][CH:6]=2)([O-:3])=[O:2].CN([S+](N(C)C)N(C)C)C.C[Si-](F)(F)(C)C.OP([O-])(O)=O.[K+].[OH2:40].[CH2:41]1[CH2:45][O:44][CH2:43][CH2:42]1>C(#N)C.CCOCC>[CH3:41][CH:42]([CH:11]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]([N+:1]([O-:3])=[O:2])[C:17]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]1=2)[C:43]([O:44][CH3:45])=[O:40]

참가 물질

8

반응물 5

HCID 962WaterHCID 8028TetrahydrofuranHCID 117679-NitroanthraceneHCID 516951Monobasic potassium phosphateHCID 9795567Tris(dimethylamino)sulfonium difluorotrimethylsilicate

생성물 1

HCID 13507922Methyl alpha-Methyl-9-nitro-9,10-dihydroanthracene-10-acetate

시약·촉매·용매 2

HCID 3283Diethyl Ether용매HCID 6342Acetonitrile용매

실험 절차

To a solution of 0.757 g (3.39 mmol) of 9-nitroanthracene and 0.663 mL (3.56 mmol) of MTS in 20 mL of anhydrous THF was added 0.941 g (3.42 mmol) of TASF in 2 mL of anhydrous acetonitrile at -78° C. The mixture was stirred for 24 hr. at -78° C. Then, ten mL of saturated KH2PO4 and 20 mL of water were added, the mixture was warmed to room temperature, and the product was extracted into ether. The combined ether extract was washed with water, dried, and concentrated. The major product, 0.491 g (56%), was isolated by column chromatography on silica using 20° ether/hexane as the solvent. Addition of small amount of ether to the major fraction yielded a light yellow solid. The product was analyzed by ultraviolet absorption, infrared spectroscopy, nuclear magnetic resonance spectroscopy, and mass spectrometry.

후처리

  1. customat -78° C
  2. extractionthe product was extracted into ether
  3. extractionThe combined ether extract
  4. washwas washed with water
  5. customdried
  6. concentrationconcentrated
  7. customThe major product, 0.491 g (56%), was isolated by column chromatography on silica using 20° ether/hexane as the solvent
  8. customyielded a light yellow solid
  9. customThe product was analyzed by ultraviolet absorption

출처 및 근거

ORD 기록
ord-bd691a6101bf48498f40201522791a6d
출처 데이터셋
uspto-grants-1987_04
특허 번호
US04659862

연결된 노트

불러오는 중…