ChemicalBook CAS DataBase List (3S)-1,3-Bis-O-tert-ButyldiMethylsilyl 3-Hydroxy VitaMin D2 SO2 Adduct (Mixture of DiastereoMers)

(3S)-1,3-Bis-O-tert-ButyldiMethylsilyl 3-Hydroxy VitaMin D2 SO2 Adduct (Mixture of DiastereoMers) synthesis

4synthesis methods

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
644 suppliers
$25.00/1g

(3S)-1,3-Bis-O-tert-ButyldiMethylsilyl 3-Hydroxy VitaMin D2 SO2 Adduct (Mixture of DiastereoMers)

170081-46-6
6 suppliers
$165.00/5mg

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 Synthesis

87680-65-7
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$460.00/50mg

170081-46-6
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$165.00/5mg

References

170081-43-3 Synthesis

tert-Butyl-dimethyl-{3-[7a-methyl-1-(1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4-ylidenemethyl]-2,2-dioxo-2,3,4,5,6,7-hexahydro-1H-2l6-benzo[c]thiophen-5-yloxy}-silane

170081-43-3
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inquiry

170081-46-6
6 suppliers
$165.00/5mg

References

18162-48-6 Synthesis

18162-48-6
664 suppliers
$9.00/5g

170081-46-6
6 suppliers
$165.00/5mg

References