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

HRID 1735430ノート

反応式

HRID 1735430 の反応式
[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

参加物

9

反応物 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

生成物 1

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

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 8857Ethyl Acetate溶媒HCID 13387N-methyl-2-pyrrolidone溶媒

実験手順

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.

後処理

  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

出典と根拠

ORDレコード
ord-8401077f4b4d4c86aa09e4ae3eebbefc
出典データセット
uspto-grants-1996_07
特許番号
US05536747

反応ノート

読み込み中…