tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane

Base Information

• Chemical Name: tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane
• CAS No.: 91285-71-1
• Molecular Formula: C₃₂H₄₂O₃Si
• Molecular Weight: 502.769
• Mol file: 91285-71-1.mol

Synonyms:tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane

Chemical Property of tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane

There total 9 articles about tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane 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:

2,2-dimethoxy-propane (77-76-9) + (3S,5R)-1-(tert-Butyl-diphenyl-silanyloxy)-7-phenyl-heptane-3,5-diol (91285-70-0) → tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane (91285-71-1)

Guidance literature:

With toluene-4-sulfonic acid; In dichloromethane; at 20 ℃; for 3h;

DOI:10.1016/S0040-4039(02)02181-0

Reference yield:

(2S)-O-(tert-butyldiphenylsilyl)-1,2-epoxybutan-4-ol (125975-53-3,147220-48-2,116996-54-4) → tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane (91285-71-1)

Guidance literature:

Multi-step reaction with 4 steps

1: 98 percent / n-BuLi / tetrahydrofuran / 20 °C

2: 77 percent / NaHCO₃; I₂ / H₂O; acetone / 0 °C

3: Me₄NHB(OAc)3 / acetonitrile; acetic acid / 25 h / -20 °C

4: p-TsOH / CH₂Cl₂ / 3 h / 20 °C

With n-butyllithium; iodine; sodium hydrogencarbonate; toluene-4-sulfonic acid; tetramethylammonium triacetoxyborohydride; In tetrahydrofuran; dichloromethane; water; acetic acid; acetone; acetonitrile;

DOI:10.1016/S0040-4039(02)02181-0

Reference yield:

Methanesulfonic acid (S)-4-(tert-butyl-diphenyl-silanyloxy)-2-hydroxy-butyl ester (116996-53-3) → tert-Butyl-[2-((4S,6R)-2,2-dimethyl-6-phenethyl-[1,3]dioxan-4-yl)-ethoxy]-diphenyl-silane (91285-71-1)

Guidance literature:

Multi-step reaction with 5 steps

1: 88 percent / K₂CO₃ / methanol / 0 °C

2: 98 percent / n-BuLi / tetrahydrofuran / 20 °C

3: 77 percent / NaHCO₃; I₂ / H₂O; acetone / 0 °C

4: Me₄NHB(OAc)3 / acetonitrile; acetic acid / 25 h / -20 °C

5: p-TsOH / CH₂Cl₂ / 3 h / 20 °C

With n-butyllithium; iodine; sodium hydrogencarbonate; potassium carbonate; toluene-4-sulfonic acid; tetramethylammonium triacetoxyborohydride; In tetrahydrofuran; methanol; dichloromethane; water; acetic acid; acetone; acetonitrile;

DOI:10.1016/S0040-4039(02)02181-0

upstream raw materials:

(4R,6R)-(+)-4-hydroxy-6-(2-phenylethyl)-tetrahydro-2H-pyran-2-one

acetone

tert-butylchlorodiphenylsilane

2,2-dimethoxy-propane

Downstream raw materials:

(4R,6R)-(+)-4-hydroxy-6-(2-phenylethyl)-tetrahydro-2H-pyran-2-one

(4S,6R)-4-(2-hydroxyethyl)-6-(2-phenylethyl)-2,2-dimethyl-1,3-dioxane