(-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

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Chemical Name:(-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran
CAS No.:869336-62-9
Molecular Formula:C₃₆H₅₈O₄Si₂
Molecular Weight:611.025
Hs Code.:

Synonyms:(-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

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Chemical Property of (-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

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Technology Process of (-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

There total 2 articles about (-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran 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:

: 869336-47-0
(-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-iodo-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

: 869336-62-9
(-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

Guidance literature:: Multi-step reaction with 2 steps

1: Pd(ppf)Cl₂; aq. NaOH / tetrahydrofuran / 1 h / 20 °C

2: MeOH; K₂CO₃ / tetrahydrofuran / 3 h / 20 °C

With methanol; sodium hydroxide; Pd(ppf)Cl₂; potassium carbonate; In tetrahydrofuran;
DOI:10.1021/ja055033z

Reference yield:

: (-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(tributylstannyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

: 869336-62-9
(-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

Guidance literature:: Multi-step reaction with 3 steps

1: iodine / CH₂Cl₂

2: Pd(ppf)Cl₂; aq. NaOH / tetrahydrofuran / 1 h / 20 °C

3: MeOH; K₂CO₃ / tetrahydrofuran / 3 h / 20 °C

With methanol; sodium hydroxide; Pd(ppf)Cl₂; iodine; potassium carbonate; In tetrahydrofuran; dichloromethane;
DOI:10.1021/ja055033z

Reference yield: 74.0%

: 869336-62-9
(-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran

: (+)-(2R,4S,5R,6S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-4-(triisopropylsilyloxy)-1,7-dioxaspiro[5.5]undecan-5-ol

Guidance literature:: (-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-6-(4-hydroxybutyl)-4-(triisopropylsilyloxy)-3,4-dihydro-2H-pyran; In dichloromethane; acetone; at -78 ℃; for 0.166667h;

With titanium(IV) isopropylate; In dichloromethane; acetone; at 0 ℃; for 1h;
DOI:10.1021/ja057908f