methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-vinylisobenzofuran-5-yl)-4-methyl-4-hexenoate → methyl (E) 6-(1,3-dihydro-6-ethyl-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate

HRID 742352노트

반응식

HRID 742352 반응식
[CH3:1][C:2]1[C:3]([CH:33]=[CH2:34])=[C:4]([CH2:23]/[CH:24]=[C:25](\[CH3:32])/[CH2:26][CH2:27][C:28]([O:30][CH3:31])=[O:29])[C:5]([O:12][S:13]([C:16]2[CH:21]=[CH:20][C:19]([CH3:22])=[CH:18][CH:17]=2)(=[O:15])=[O:14])=[C:6]2[C:10]=1[CH2:9][O:8][C:7]2=[O:11]>C1C=CC=CC=1.C(O)C.[Rh](Cl)(Cl)Cl.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[CH2:33]([C:3]1[C:2]([CH3:1])=[C:10]2[C:6]([C:7](=[O:11])[O:8][CH2:9]2)=[C:5]([O:12][S:13]([C:16]2[CH:21]=[CH:20][C:19]([CH3:22])=[CH:18][CH:17]=2)(=[O:15])=[O:14])[C:4]=1[CH2:23]/[CH:24]=[C:25](\[CH3:32])/[CH2:26][CH2:27][C:28]([O:30][CH3:31])=[O:29])[CH3:34]

참가 물질

5

반응물 1

HCID 10672508methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-vinylisobenzofuran-5-yl)-4-methyl-4-hexenoate

생성물 1

HCID 10696303methyl (E) 6-(1,3-dihydro-6-ethyl-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate

시약·촉매·용매 3

HCID 157991709Trichlororhodium;tris(triphenylphosphane)촉매HCID 241Benzene용매HCID 702Ethanol용매

실험 절차

A solution of methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-vinylisobenzofuran-5-yl)-4-methyl-4-hexenoate (17.7 g) and tris(triphenylphosphine) rhodium chloride (1.2 g) in benzene (180 ml) and ethanol (180 ml) was hydrogenated for 11 hours. The solvents were removed under vacuum and the residue was crystallized from ethyl acetate/tert butyl methyl ether to afford methyl (E) 6-(1,3-dihydro-6-ethyl-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate, mp 101.3°-102.08° C.

후처리

  1. customThe solvents were removed under vacuum
  2. customthe residue was crystallized from ethyl acetate/tert butyl methyl ether

출처 및 근거

ORD 기록
ord-dd1068850ba044b0aa3724fd21affc9a
출처 데이터셋
uspto-grants-1996_09
특허 번호
US05554612

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