(3S)-1,3-Bis-O-tert-ButyldiMethylsilyl 3-Hydroxy VitaMin D2 SO2 Adduct (Mixture of DiastereoMers) synthesis
- Product Name:(3S)-1,3-Bis-O-tert-ButyldiMethylsilyl 3-Hydroxy VitaMin D2 SO2 Adduct (Mixture of DiastereoMers)
- CAS Number:170081-46-6
- Molecular formula:C40H72O4SSi2
- Molecular Weight:705.23
50-14-6
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170081-46-6
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Yield:-
Steps:
Multi-step reaction with 6 steps
1: SO2 / CH2Cl2 / 1.25 h / -10 °C
2: imidazole / Ambient temperature
3: 94 percent / NaHCO3 / aq. ethanol / 1.25 h / Heating
4: 54.9 g / SeO2, 4-methylmorpholine N-oxide / methanol / 5.5 h / Heating
5: imidazole / CH2Cl2 / 6 h / Ambient temperature
6: 63.8 g / SO2 / CH2Cl2 / 0.75 h / -10 °C
References:
Choudhry, Satish C.;Belica, Peter S.;Coffen, David L.;Focella, Antonino;Maehr, Hubert;et al. [Journal of Organic Chemistry,1993,vol. 58,# 6,p. 1496 - 1500]
87680-65-7
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$460.00/50mg
170081-46-6
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170081-43-3
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170081-46-6
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18162-48-6
668 suppliers
$9.00/5g
170081-46-6
10 suppliers
$165.00/5mg