<5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one

Base Information

• Chemical Name: <5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one
• CAS No.: 130316-22-2
• Molecular Formula: C₁₈H₃₀O₃Si
• Molecular Weight: 322.52

Synonyms:<5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one

Chemical Property of <5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one

Chemical Property:

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Technology Process of <5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one

There total 7 articles about <5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one 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: 57.0%

Ethyl 4-O-(tert-butyldimethylsilyl)-6-cyclohexylidene-2,3,6-trideoxy-α-D-erythro-hex-2-enoaldopyranoside-(1,5) (130335-92-1) → <5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one (130316-22-2)

Guidance literature:

With jones reagent; magnesium sulfate; In acetone; at 0 - 5 ℃; for 0.166667h;

DOI:10.1016/S0040-4020(01)87085-X

Reference yield:

Ethyl 4-O-(tert-butyldimethylsilyl)-2,3-dideoxy-α-D-erythro-hex-2-enodialdopyranoside-(1,5) (112571-70-7) → <5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one (130316-22-2)

Guidance literature:

Multi-step reaction with 2 steps

1: tetrahydrofuran / 1.5 h / 25 °C

2: CrO₃, H₂SO₄ / acetone / 0.17 h / 0 °C

With chromium(VI) oxide; sulfuric acid; In tetrahydrofuran; acetone;

DOI:10.1016/S0040-4039(01)80478-0

Reference yield:

cyclohexyltriphenylphosphorane (16666-81-2) → <5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>-6-(cyclohexylidenemethyl)-5,6-dihydro-2H-pyran-2-one (130316-22-2)

Guidance literature:

Multi-step reaction with 2 steps

1: tetrahydrofuran / 1.5 h / 25 °C

2: CrO₃, H₂SO₄ / acetone / 0.17 h / 0 °C

With chromium(VI) oxide; sulfuric acid; In tetrahydrofuran; acetone;

DOI:10.1016/S0040-4039(01)80478-0

upstream raw materials:

Ethyl 4-O-(tert-butyldimethylsilyl)-6-cyclohexylidene-2,3,6-trideoxy-α-D-erythro-hex-2-enoaldopyranoside-(1,5)

cyclohexyltriphenylphosphorane

Ethyl 4-O-(tert-butyldimethylsilyl)-2,3-dideoxy-α-D-erythro-hex-2-enodialdopyranoside-(1,5)

Ethyl 4-O-(tert-butyldimethylsilyl)-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside

Downstream raw materials:

(4R)-4-(tert-Butyldimethylsilyloxy)-6-cyclohexylhexanoic acid

<5S-(5α,6β)>-5-<(tert-Butyldimethylsilyl)oxy>tetrahydro-6-(cyclohexylmethyl)-2H-pyran-2-one

<3S-<3α,5β(R^*)>>-5-(2-Cyclohexyl-1-aminoethyl)dihydro-3-isopropyl-2(3H)-furanone

<3S-<3α,5β(R^*)>>-5-(2-Cyclohexyl-1-azidoethyl)dihydro-3-isopropyl-2(3H)-furanone

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