(1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

Base Information

Chemical Name:(1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane
CAS No.:114647-34-6
Molecular Formula:C₃₁H₄₂O₄Si
Molecular Weight:506.758
Hs Code.:

Synonyms:(1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

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Chemical Property of (1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

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Technology Process of (1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

There total 7 articles about (1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane 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: 72.0%

: 114647-39-1,116781-00-1
(1S,2R,3S,5R,6S,7R)-2,3-epoxy-3-methyl-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

: 114647-34-6
(1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

Guidance literature:: With diethylaluminium 2,2,6,6-tetramethylpiperidinylamide; In benzene; for 0.5h;
DOI:10.1248/cpb.35.4000

Reference yield:

: 110-87-2
3,4-dihydro-2H-pyran

: 114647-34-6
(1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

Guidance literature:: Multi-step reaction with 5 steps

1: 960 g / p-TsOH / CH₂Cl₂ / 0.5 h

2: 1.) lithium dicyclohexylamide / 1.) THF, hexane, 10 min; 2.) room temp., 20 min

3: Pd(PPh₃)4 / hexane; 1,2-dichloro-ethane / 3 h / Ambient temperature

4: 42 percent / MCPBA / CH₂Cl₂ / 1 h

5: 72 percent / diethylaluminium 2,2,6,6-tetramethylpiperidinylamide / benzene / 0.5 h

With diethylaluminium 2,2,6,6-tetramethylpiperidinylamide; lithium dicyclohexylamide; toluene-4-sulfonic acid; 3-chloro-benzenecarboperoxoic acid; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In hexane; dichloromethane; 1,2-dichloro-ethane; benzene;
DOI:10.1248/cpb.35.4000

Reference yield:

: 70871-22-6
(1S,2R,3R,5R)-2-hydroxymethyl-3-(tetrahydropyran-2-yl)oxy-7,7-ethylenedioxybicyclo<3.3.0>octane

: 114647-34-6
(1S,2R,5R,6S,7R)-2-hydroxy-3-methylene-6-(tert-butyldiphenylsilyloxymethyl)-7-(tetrahydropyran-2-yl)oxybicyclo<3.3.0>octane

Guidance literature:: Multi-step reaction with 7 steps

1: 17.8 g / imidazole / dimethylformamide / 1 h / Ambient temperature

2: 0.982 g / AcOH / tetrahydrofuran; H₂O / 7 h / 45 - 50 °C

3: 960 g / p-TsOH / CH₂Cl₂ / 0.5 h

4: 1.) lithium dicyclohexylamide / 1.) THF, hexane, 10 min; 2.) room temp., 20 min

5: Pd(PPh₃)4 / hexane; 1,2-dichloro-ethane / 3 h / Ambient temperature

6: 42 percent / MCPBA / CH₂Cl₂ / 1 h

7: 72 percent / diethylaluminium 2,2,6,6-tetramethylpiperidinylamide / benzene / 0.5 h

With 1H-imidazole; diethylaluminium 2,2,6,6-tetramethylpiperidinylamide; lithium dicyclohexylamide; toluene-4-sulfonic acid; acetic acid; 3-chloro-benzenecarboperoxoic acid; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In tetrahydrofuran; hexane; dichloromethane; water; 1,2-dichloro-ethane; N,N-dimethyl-formamide; benzene;
DOI:10.1248/cpb.35.4000