Triphenylarsine → methyl (E) 6-(1,3-dihydro-6-(4-methoxybenzyloxymethyl)-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate

HRID 1735430노트

반응식

HRID 1735430 반응식
[Cl-].[Li+].C1([As](C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH3:22][C:23]1[C:24](OS(C(F)(F)F)(=O)=O)=[C:25]([CH2:44]/[CH:45]=[C:46](\[CH3:53])/[CH2:47][CH2:48][C:49]([O:51][CH3:52])=[O:50])[C:26]([O:33][S:34]([C:37]2[CH:42]=[CH:41][C:40]([CH3:43])=[CH:39][CH:38]=2)(=[O:36])=[O:35])=[C:27]2[C:31]=1[CH2:30][O:29][C:28]2=[O:32].[CH3:62][O:63][C:64]1[CH:85]=[CH:84][C:67]([CH2:68][O:69][CH2:70][Sn](CCCC)(CCCC)CCCC)=[CH:66][CH:65]=1.[F-].[K+]>C(OCC)(=O)C.O.CN1CCCC1=O>[CH3:62][O:63][C:64]1[CH:85]=[CH:84][C:67]([CH2:68][O:69][CH2:70][C:24]2[C:23]([CH3:22])=[C:31]3[C:27]([C:28](=[O:32])[O:29][CH2:30]3)=[C:26]([O:33][S:34]([C:37]3[CH:38]=[CH:39][C:40]([CH3:43])=[CH:41][CH:42]=3)(=[O:35])=[O:36])[C:25]=2[CH2:44]/[CH:45]=[C:46](\[CH3:53])/[CH2:47][CH2:48][C:49]([O:51][CH3:52])=[O:50])=[CH:66][CH:65]=1

참가 물질

9

반응물 5

HCID 11773TriphenylarsineHCID 433294Lithium ChlorideHCID 522689Potassium FluorideHCID 10555649methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-trifluoromethanesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoateHCID 11166591Tributyl({[(4-methoxyphenyl)methoxy]methyl})stannane

생성물 1

HCID 15840162methyl (E) 6-(1,3-dihydro-6-(4-methoxybenzyloxymethyl)-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate

시약·촉매·용매 3

HCID 962Water용매HCID 8857Ethyl Acetate용매HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

A mixture of lithium chloride (1.6 g), tris (dibenzylideneacetone)dipalladium (O) chloroform adduct (0.22 g), triphenylarsine (0.53 g), methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-trifluoromethanesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate (8.0 g) and N-methylpyrrolidinone (70 ml) is heated to 55° C. p-Methoxybenzyloxymethyltributyltin (7.5 g) is added. After 3 hours the solution is added to water (200 ml), potassium fluoride (5 g) and ethyl acetate (200 ml). The organic solution is dried, filtered through celite and evaporated, and the residue is chromatographed on silica gel, eluting with hexane:ethyl acetate, to afford methyl (E) 6-(1,3-dihydro-6-(p-methoxybenzyloxymethyl)-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate.

후처리

  1. additionis added
  2. customThe organic solution is dried
  3. filtrationfiltered through celite
  4. customevaporated
  5. customthe residue is chromatographed on silica gel
  6. washeluting with hexane

출처 및 근거

ORD 기록
ord-8401077f4b4d4c86aa09e4ae3eebbefc
출처 데이터셋
uspto-grants-1996_07
특허 번호
US05536747

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