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 260111노트

반응식

HRID 260111 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°-102.8° 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-6eec1171efdd489bb8c21bbf206672c9
출처 데이터셋
uspto-grants-1996_06
특허 번호
US05525602

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