Technology Process of (2E,6Z)-8-(tert-Butyl-diphenyl-silanyloxy)-6-methyl-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-octa-2,6-dienoic acid methyl ester
There total 11 articles about (2E,6Z)-8-(tert-Butyl-diphenyl-silanyloxy)-6-methyl-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-octa-2,6-dienoic acid methyl ester which
guide to synthetic route it.
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synthetic route:
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139108-91-1
(2E,6Z)-8-(tert-Butyl-diphenyl-silanyloxy)-6-methyl-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-octa-2,6-dienoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 3 steps
1: 48 percent / n-Bu3SnH / diethyl ether / 11 h / Irradiation
2: Et3N / CH2Cl2 / 0.25 h / 0 °C
3: 7 mg / DBU / toluene / 4 h / Heating
With
tri-n-butyl-tin hydride; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine;
In
diethyl ether; dichloromethane; toluene;
DOI:10.1016/S0040-4020(97)10260-5
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139108-91-1
(2E,6Z)-8-(tert-Butyl-diphenyl-silanyloxy)-6-methyl-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-octa-2,6-dienoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 6 steps
1: 100 percent / imidazole / dimethylformamide / 0.25 h / Ambient temperature
2: 1) O3, pyridine, 2) Me2S / 1) CH2Cl2, -78 deg C, 1 h, 2) CH2Cl2, -78 deg C -> room temperature, 2 h
3: 44 percent / DABCO / 552 h / Ambient temperature
4: 48 percent / n-Bu3SnH / diethyl ether / 11 h / Irradiation
5: Et3N / CH2Cl2 / 0.25 h / 0 °C
6: 7 mg / DBU / toluene / 4 h / Heating
With
pyridine; 1,4-diaza-bicyclo[2.2.2]octane; 1H-imidazole; dimethylsulfide; tri-n-butyl-tin hydride; ozone; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine;
In
diethyl ether; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1016/S0040-4020(97)10260-5
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139108-91-1
(2E,6Z)-8-(tert-Butyl-diphenyl-silanyloxy)-6-methyl-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-octa-2,6-dienoic acid methyl ester
- Guidance literature:
-
Multi-step reaction with 5 steps
1: 1) O3, pyridine, 2) Me2S / 1) CH2Cl2, -78 deg C, 1 h, 2) CH2Cl2, -78 deg C -> room temperature, 2 h
2: 44 percent / DABCO / 552 h / Ambient temperature
3: 48 percent / n-Bu3SnH / diethyl ether / 11 h / Irradiation
4: Et3N / CH2Cl2 / 0.25 h / 0 °C
5: 7 mg / DBU / toluene / 4 h / Heating
With
pyridine; 1,4-diaza-bicyclo[2.2.2]octane; dimethylsulfide; tri-n-butyl-tin hydride; ozone; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine;
In
diethyl ether; dichloromethane; toluene;
DOI:10.1016/S0040-4020(97)10260-5