(3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde

Base Information

• Chemical Name: (3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde
• CAS No.: 216446-52-5
• Molecular Formula: C₃₁H₄₀O₃
• Molecular Weight: 460.657

Synonyms:(3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde

Chemical Property of (3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde

Chemical Property:

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Technology Process of (3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde

There total 2 articles about (3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

(3β,5α,20S)-4,4,20-trimethylpregna-8,14-diene-3,21-diol 3-benzoate (216446-51-4) → (3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde (216446-52-5)

Guidance literature:

With pyridine; Dess-Martin periodane; In tetrahydrofuran; at 0 ℃; for 0.5h;

Reference yield:

chlorochromate + (3β,5α,20S)-4,4,20-trimethylpregna-8,14-diene-3,21-diol 3-benzoate (216446-51-4) → (3β,5α,20S)-4,4-dimethyl-23-phenyl-24-norchola-8,14-dien-22-yn-3-ol + (3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde (216446-52-5)

Guidance literature:

With sodium hydrogencarbonate; pyridinium chlorochromate; In dichloromethane;

Reference yield:

(3β,5α,20S)-3-(benzoyloxy)-4,4-dimethylpregna-8,14-diene-20-carboxaldehyde (216446-52-5) + isopentyl iodide (541-28-6) + isopentylmagnesium iodide (334992-48-2) + ethylene dibromide (106-93-4) → (3β,5α,20S,22S)-4,4-dimethylcholesta-8,14-diene-3,22-diol 3-benzoate (292601-71-9)

Guidance literature:

With ammonium chloride; magnesium; In tetrahydrofuran; diethyl ether;

upstream raw materials:

(3β,5α,20S)-4,4,20-trimethylpregna-8,14-diene-3,21-diol 3-benzoate

Downstream raw materials:

(3β,5α,20S,22S)-4,4-dimethylcholesta-8,14-diene-3,22-diol 3-benzoate

(3β,5α,20S)-4,4,20-trimethyl-21-(3-methylphenyl)pregna-8,14-diene-3,21-diol

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