Technology Process of (+)-12-(3-chlorobenzoyloxy)-11-hydroxy-5-methyl-2,3:7,8-bis(methylenedioxy)-10b-triethylsilyloxy-4b,5,6,10b,11,12-hexahydrobenzo[c]phenanthridin-6(5H)-one
There total 5 articles about (+)-12-(3-chlorobenzoyloxy)-11-hydroxy-5-methyl-2,3:7,8-bis(methylenedioxy)-10b-triethylsilyloxy-4b,5,6,10b,11,12-hexahydrobenzo[c]phenanthridin-6(5H)-one which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 5 steps
1: toluene-4-sulfonic acid / benzene / 1 h / Reflux
2: potassium osmate(VI) dihydrate; AD-mix-α; methanesulfonamide; water; hydroquinidein 1,4-phthalazinediyl diether / dichloromethane; tert-butyl alcohol / 86 h / 0 °C
3: trifluoroacetic acid
4: potassium carbonate; 2,3-dicyano-5,6-dichloro-p-benzoquinone
5: chloroform / 24 h / 0 - 20 °C
With
potassium osmate(VI) dihydrate; methanesulfonamide; AD-mix-α; water; potassium carbonate; toluene-4-sulfonic acid; hydroquinidein 1,4-phthalazinediyl diether; trifluoroacetic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
dichloromethane; chloroform; tert-butyl alcohol; benzene;
2: Sharpless dihydroxylation / 4: Pinacol type rearrangement;
DOI:10.1016/j.tet.2011.07.091
- Guidance literature:
-
Multi-step reaction with 8 steps
1: sulfuric acid; magnesium sulfate / dichloromethane / 24 h / 20 °C
2: tris-(dibenzylideneacetone)dipalladium(0); sodium metabisulfite; caesium carbonate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene / toluene / 20 h / 100 °C / Inert atmosphere
3: water; N,N-dimethyl-formamide / 6 h / 20 °C / Inert atmosphere
4: toluene-4-sulfonic acid / benzene / 1 h / Reflux
5: potassium osmate(VI) dihydrate; AD-mix-α; methanesulfonamide; water; hydroquinidein 1,4-phthalazinediyl diether / dichloromethane; tert-butyl alcohol / 86 h / 0 °C
6: trifluoroacetic acid
7: potassium carbonate; 2,3-dicyano-5,6-dichloro-p-benzoquinone
8: chloroform / 24 h / 0 - 20 °C
With
sodium metabisulfite; potassium osmate(VI) dihydrate; tris-(dibenzylideneacetone)dipalladium(0); methanesulfonamide; AD-mix-α; sulfuric acid; water; magnesium sulfate; potassium carbonate; caesium carbonate; toluene-4-sulfonic acid; hydroquinidein 1,4-phthalazinediyl diether; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; trifluoroacetic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
dichloromethane; chloroform; water; N,N-dimethyl-formamide; toluene; tert-butyl alcohol; benzene;
5: Sharpless dihydroxylation / 7: Pinacol type rearrangement;
DOI:10.1016/j.tet.2011.07.091