Technology Process of (R)-2-Methyl-3-((2R,4aR,8aR,9aS,10aS)-10a-methyl-2-phenyl-4a,5,8a,9,9a,10a-hexahydro-4H-1,3,8,10-tetraoxa-anthracen-7-yl)-propionic acid methyl ester
There total 6 articles about (R)-2-Methyl-3-((2R,4aR,8aR,9aS,10aS)-10a-methyl-2-phenyl-4a,5,8a,9,9a,10a-hexahydro-4H-1,3,8,10-tetraoxa-anthracen-7-yl)-propionic acid methyl ester which
guide to synthetic route it.
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synthetic route:
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858346-25-5
(R)-2-Methyl-3-((2R,4aR,8aR,9aS,10aS)-10a-methyl-2-phenyl-4a,5,8a,9,9a,10a-hexahydro-4H-1,3,8,10-tetraoxa-anthracen-7-yl)-propionic acid methyl ester
- Guidance literature:
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Multi-step reaction with 7 steps
1.1: 100 percent / benzene / 20 °C
2.1: 100 percent / TBAF / tetrahydrofuran / 20 °C
3.1: 92 percent / PPTS / CH2Cl2 / 0 - 20 °C
4.1: 95 percent / H2 / Pd/C / methanol / 20 °C
5.1: 100 percent / PPTS / benzene / Heating
6.1: 94 percent / DMPU; KHMDS / tetrahydrofuran; toluene / 0.5 h / -78 °C
7.1: Zn-Cu; DMA / benzene / 1 h / Heating
7.2: 85 percent / PdCl2(o-Tol3P)2 / benzene / 13 h / 40 °C
With
1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; tetrabutyl ammonium fluoride; hydrogen; pyridinium p-toluenesulfonate; potassium hexamethylsilazane; 2,4-dichlorophenoxyacetic acid dimethylamine; copper; zinc;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; dichloromethane; toluene; benzene;
1.1: Wittig reaction;
DOI:10.1021/ja051171c
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858346-25-5
(R)-2-Methyl-3-((2R,4aR,8aR,9aS,10aS)-10a-methyl-2-phenyl-4a,5,8a,9,9a,10a-hexahydro-4H-1,3,8,10-tetraoxa-anthracen-7-yl)-propionic acid methyl ester
- Guidance literature:
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Multi-step reaction with 5 steps
1.1: 92 percent / PPTS / CH2Cl2 / 0 - 20 °C
2.1: 95 percent / H2 / Pd/C / methanol / 20 °C
3.1: 100 percent / PPTS / benzene / Heating
4.1: 94 percent / DMPU; KHMDS / tetrahydrofuran; toluene / 0.5 h / -78 °C
5.1: Zn-Cu; DMA / benzene / 1 h / Heating
5.2: 85 percent / PdCl2(o-Tol3P)2 / benzene / 13 h / 40 °C
With
1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; hydrogen; pyridinium p-toluenesulfonate; potassium hexamethylsilazane; 2,4-dichlorophenoxyacetic acid dimethylamine; copper; zinc;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; dichloromethane; toluene; benzene;
DOI:10.1021/ja051171c
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-
858346-25-5
(R)-2-Methyl-3-((2R,4aR,8aR,9aS,10aS)-10a-methyl-2-phenyl-4a,5,8a,9,9a,10a-hexahydro-4H-1,3,8,10-tetraoxa-anthracen-7-yl)-propionic acid methyl ester
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: 95 percent / H2 / Pd/C / methanol / 20 °C
2.1: 100 percent / PPTS / benzene / Heating
3.1: 94 percent / DMPU; KHMDS / tetrahydrofuran; toluene / 0.5 h / -78 °C
4.1: Zn-Cu; DMA / benzene / 1 h / Heating
4.2: 85 percent / PdCl2(o-Tol3P)2 / benzene / 13 h / 40 °C
With
1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; hydrogen; pyridinium p-toluenesulfonate; potassium hexamethylsilazane; 2,4-dichlorophenoxyacetic acid dimethylamine; copper; zinc;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; toluene; benzene;
DOI:10.1021/ja051171c