Technology Process of (E)-(2R,3S,4S,5R,6S,7R,10S,11S)-2,7-bis{[tert-butyl(dimethyl)silyl]oxy}-3-methoxy-11-[(4-methoxybenzyl)oxy]-4,6,8,10-tetramethyl-5-[(triethylsilyl)oxy]dodec-8-enoic acid methyl ester
There total 14 articles about (E)-(2R,3S,4S,5R,6S,7R,10S,11S)-2,7-bis{[tert-butyl(dimethyl)silyl]oxy}-3-methoxy-11-[(4-methoxybenzyl)oxy]-4,6,8,10-tetramethyl-5-[(triethylsilyl)oxy]dodec-8-enoic acid methyl ester which
guide to synthetic route it.
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synthetic route:
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857847-10-0
(E)-(2R,3S,4S,5R,6S,7R,10S,11S)-2,7-bis{[tert-butyl(dimethyl)silyl]oxy}-3-methoxy-11-[(4-methoxybenzyl)oxy]-4,6,8,10-tetramethyl-5-[(triethylsilyl)oxy]dodec-8-enoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 13 steps
1.1: O3; Sudan Red III / ethanol; CH2Cl2 / 0.17 h / -78 °C
1.2: PPh3 / ethanol; CH2Cl2 / 1 h / -78 °C
2.1: 209 mg / CH2Cl2; ethanol / 15 h / 20 °C
3.1: 91 percent / DIBAL-H / CH2Cl2; hexane / 1 h / -78 °C
4.1: 97 percent / MnO2 / CH2Cl2 / 1 h / 20 °C
5.1: 3.36 g / CH2Cl2 / 1.33 h / -78 - 0 °C
6.1: Me3Al / CH2Cl2; heptane / 1 h / 20 °C
6.2: 89 percent / CH2Cl2 / -20 - 20 °C
7.1: 1.95 g / 2,6-lutidine / CH2Cl2 / 1 h / 20 °C
8.1: 88 percent / DIBAL-H / heptane; tetrahydrofuran / 0.25 h / -78 °C
9.1: 91 percent / tris(pentafluorophenyl)borane monohydrate; i-PrOH / diethyl ether / 0.5 h / -78 - -50 °C
10.1: 97 percent / 2,6-lutidine / CH2Cl2 / 0.25 h / 0 °C
11.1: 87 percent / aq. AD-mix α; methanesulfonamide / 2-methyl-propan-2-ol / 120 h / 0 °C
12.1: 99 percent / imidazole / dimethylformamide / 16 h / 0 °C
13.1: 82 percent / proton sponge / CH2Cl2 / 24 h / 0 °C
With
1H-imidazole; 2,6-dimethylpyridine; manganese(IV) oxide; AD-mix-α; Proton Sponge; methanesulfonamide; tris(pentafluorophenyl)borate; trimethylaluminum; diisobutylaluminium hydride; ozone; isopropyl alcohol; 1-[{4-(phenylazo)-phenyl}-azo]-2-naphthalenol;
In
tetrahydrofuran; diethyl ether; ethanol; hexane; n-heptane; dichloromethane; N,N-dimethyl-formamide; tert-butyl alcohol;
2.1: Wittig reaction / 9.1: vinylogous Mukaiyama aldol reaction / 11.1: Sharpless asymmetric dihydroxylation;
DOI:10.1055/s-2005-865302
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857847-10-0
(E)-(2R,3S,4S,5R,6S,7R,10S,11S)-2,7-bis{[tert-butyl(dimethyl)silyl]oxy}-3-methoxy-11-[(4-methoxybenzyl)oxy]-4,6,8,10-tetramethyl-5-[(triethylsilyl)oxy]dodec-8-enoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 14 steps
1.1: O3; Sudan Red III / ethanol; CH2Cl2 / 0.17 h / -78 °C
1.2: PPh3 / ethanol; CH2Cl2 / 1 h / -78 °C
2.1: 209 mg / CH2Cl2; ethanol / 15 h / 20 °C
3.1: 91 percent / DIBAL-H / CH2Cl2; hexane / 1 h / -78 °C
4.1: 97 percent / MnO2 / CH2Cl2 / 1 h / 20 °C
5.1: 3.36 g / CH2Cl2 / 1.33 h / -78 - 0 °C
6.1: Me3Al / CH2Cl2; heptane / 1 h / 20 °C
6.2: 89 percent / CH2Cl2 / -20 - 20 °C
7.1: 1.95 g / 2,6-lutidine / CH2Cl2 / 1 h / 20 °C
8.1: 88 percent / DIBAL-H / heptane; tetrahydrofuran / 0.25 h / -78 °C
9.1: 91 percent / tris(pentafluorophenyl)borane monohydrate; i-PrOH / diethyl ether / 0.5 h / -78 - -50 °C
10.1: 97 percent / 2,6-lutidine / CH2Cl2 / 0.25 h / 0 °C
11.1: 87 percent / aq. AD-mix α; methanesulfonamide / 2-methyl-propan-2-ol / 120 h / 0 °C
12.1: 99 percent / imidazole / dimethylformamide / 16 h / 0 °C
13.1: 82 percent / proton sponge / CH2Cl2 / 24 h / 0 °C
With
1H-imidazole; 2,6-dimethylpyridine; manganese(IV) oxide; AD-mix-α; Proton Sponge; methanesulfonamide; tris(pentafluorophenyl)borate; trimethylaluminum; diisobutylaluminium hydride; ozone; isopropyl alcohol; 1-[{4-(phenylazo)-phenyl}-azo]-2-naphthalenol;
In
tetrahydrofuran; diethyl ether; ethanol; hexane; n-heptane; dichloromethane; N,N-dimethyl-formamide; tert-butyl alcohol;
3.1: Wittig reaction / 10.1: vinylogous Mukaiyama aldol reaction / 12.1: Sharpless asymmetric dihydroxylation;
DOI:10.1055/s-2005-865302
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857847-10-0
(E)-(2R,3S,4S,5R,6S,7R,10S,11S)-2,7-bis{[tert-butyl(dimethyl)silyl]oxy}-3-methoxy-11-[(4-methoxybenzyl)oxy]-4,6,8,10-tetramethyl-5-[(triethylsilyl)oxy]dodec-8-enoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 12 steps
1.1: 209 mg / CH2Cl2; ethanol / 15 h / 20 °C
2.1: 91 percent / DIBAL-H / CH2Cl2; hexane / 1 h / -78 °C
3.1: 97 percent / MnO2 / CH2Cl2 / 1 h / 20 °C
4.1: 3.36 g / CH2Cl2 / 1.33 h / -78 - 0 °C
5.1: Me3Al / CH2Cl2; heptane / 1 h / 20 °C
5.2: 89 percent / CH2Cl2 / -20 - 20 °C
6.1: 1.95 g / 2,6-lutidine / CH2Cl2 / 1 h / 20 °C
7.1: 88 percent / DIBAL-H / heptane; tetrahydrofuran / 0.25 h / -78 °C
8.1: 91 percent / tris(pentafluorophenyl)borane monohydrate; i-PrOH / diethyl ether / 0.5 h / -78 - -50 °C
9.1: 97 percent / 2,6-lutidine / CH2Cl2 / 0.25 h / 0 °C
10.1: 87 percent / aq. AD-mix α; methanesulfonamide / 2-methyl-propan-2-ol / 120 h / 0 °C
11.1: 99 percent / imidazole / dimethylformamide / 16 h / 0 °C
12.1: 82 percent / proton sponge / CH2Cl2 / 24 h / 0 °C
With
1H-imidazole; 2,6-dimethylpyridine; manganese(IV) oxide; AD-mix-α; Proton Sponge; methanesulfonamide; tris(pentafluorophenyl)borate; trimethylaluminum; diisobutylaluminium hydride; isopropyl alcohol;
In
tetrahydrofuran; diethyl ether; ethanol; hexane; n-heptane; dichloromethane; N,N-dimethyl-formamide; tert-butyl alcohol;
1.1: Wittig reaction / 8.1: vinylogous Mukaiyama aldol reaction / 10.1: Sharpless asymmetric dihydroxylation;
DOI:10.1055/s-2005-865302