3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol

Base Information

• Chemical Name: 3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol
• CAS No.: 933487-16-2
• Molecular Formula: C₂₃H₄₀O₅Si
• Molecular Weight: 424.653
• Mol file: 933487-16-2.mol

Synonyms:3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol

Chemical Property of 3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol

There total 2 articles about 3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol 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:

5-(tert-butyl-dimethyl-silanyloxy)-1,4-dihydroxy-2,4-dimethyl-heptan-3-one (933487-14-0) → 3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol (933487-16-2)

Guidance literature:

Multi-step reaction with 2 steps

1: tetramethylammonium triacetoxyborohydride / acetic acid; acetonitrile / -40 - 20 °C

2: 91 percent / pyridinium p-toluenesulfonate / CH₂Cl₂ / 0.5 h / 20 °C

With pyridinium p-toluenesulfonate; tetramethylammonium triacetoxyborohydride; In dichloromethane; acetic acid; acetonitrile;

DOI:10.1021/ja068813w

Reference yield:

1,5-bis-(tert-butyl-dimethyl-silanyloxy)-4-hydroxy-2,4-dimethyl-heptan-3-one → 3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol (933487-16-2)

Guidance literature:

Multi-step reaction with 3 steps

1: 85 percent / acetic acid / tetrahydrofuran; H₂O / 12 h / 20 °C

2: tetramethylammonium triacetoxyborohydride / acetic acid; acetonitrile / -40 - 20 °C

3: 91 percent / pyridinium p-toluenesulfonate / CH₂Cl₂ / 0.5 h / 20 °C

With pyridinium p-toluenesulfonate; acetic acid; tetramethylammonium triacetoxyborohydride; In tetrahydrofuran; dichloromethane; water; acetic acid; acetonitrile;

DOI:10.1021/ja068813w

Reference yield: 76.0%

3-(tert-butyl-dimethyl-silanyloxy)-2-[2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-pentan-2-ol (933487-16-2) + benzyl bromide (100-39-0) → (2R,4R,5S)-4-[(1S,2R)-1-benzyloxy-2-tert-butyldimethylsiloxy-1-methylbutyl]-2-(p-methoxyphenyl)-5-methyl-1,3-dioxane (548488-09-1)

Guidance literature:

With N,N,N,N,N,N-hexamethylphosphoric triamide; tetra-(n-butyl)ammonium iodide; sodium hydride; In N,N-dimethyl-formamide; at 20 ℃; for 4h;

DOI:10.1021/ja068813w

upstream raw materials:

5-(tert-butyl-dimethyl-silanyloxy)-1,4-dihydroxy-2,4-dimethyl-heptan-3-one

Downstream raw materials:

(2R,4R,5S)-4-[(1S,2R)-1-benzyloxy-2-tert-butyldimethylsiloxy-1-methylbutyl]-2-(p-methoxyphenyl)-5-methyl-1,3-dioxane