ChemicalBook CAS DataBase List 20E-DEHYDROCHOLESTEROL

20E-DEHYDROCHOLESTEROL synthesis

6synthesis methods

Product Name:20E-DEHYDROCHOLESTEROL
CAS Number:34347-28-9
Molecular formula:C27H44O
Molecular Weight:384.64

Chola-5,23-diene-3,22-diol, 3-acetate, (3β)- (9CI)

80907-91-1
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34347-28-9
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Yield:-

Steps:

Multi-step reaction with 5 steps
1: 86 percent / benzene / Heating
2: 81 percent / LiAlH₄ / tetrahydrofuran / 1 h / Heating
3: 2.1 g / 30percent H₂O₂ / methanol / Heating
4: 67 percent / Ba(OH)2*8H₂O / pyridine / 12 h / 105 °C
5: H₂ / Unichema Prikat 9906 Ni / ethyl acetate

References:

Kircher, Henry W.;Rosenstein, Fumiko U. [Journal of Organic Chemistry,1982,vol. 47,# 9,p. 1722 - 1724]

Cholesta-5,22-dien-26-amide, 3-(acetyloxy)-N,N-dimethyl-, (3β,22E)- (9CI)

80925-45-7
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34347-28-9
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References

34714-34-6
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57-88-5 Synthesis

57-88-5
870 suppliers
$10.00/1g

34347-28-9
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References

10211-88-8 Synthesis

(3β,20S)-20-Formyl-3-hydroxy-5-pregnene 3-O-Acetate

10211-88-8
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34347-28-9
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References

28322-40-9 Synthesis

28322-40-9
102 suppliers
$19.39/10g

34347-28-9
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References

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20E-DEHYDROCHOLESTEROL synthesis