(7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

Base Information

Chemical Name:(7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one
CAS No.:769168-68-5
Molecular Formula:C₄₀H₄₆O₄Si₂
Molecular Weight:646.974
Hs Code.:

Synonyms:(7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

Suppliers and Price of (7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

Total 0 raw suppliers

Chemical Property of (7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

Chemical Property:

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Technology Process of (7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

There total 7 articles about (7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-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: 79.4%

: 769168-67-4
(1R,4S)-3-(2-acetoxyethyl)-2-acetoxymethyl-1,4-bis(tert-butyldiphenylsilyloxy)-2-cyclopenten

: 769168-68-5
(7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

Guidance literature:: (1R,4S)-3-(2-acetoxyethyl)-2-acetoxymethyl-1,4-bis(tert-butyldiphenylsilyloxy)-2-cyclopenten; With lithium hydroxide; In methanol; water; at 20 ℃; for 0.5h;

With triethylamine; pyridinium chlorochromate; In dichloromethane; at 20 ℃; for 3h;
DOI:10.1016/j.tetasy.2004.06.016

Reference yield:

: 59025-05-7
methyl (S)-(-)-2-<2-(methoxycarbonyl)-3-oxo-5-acetoxycyclopent-1-enyl>acetate

: 769168-68-5
(7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

Guidance literature:: Multi-step reaction with 8 steps

1.1: 87 percent / BF₃*OEt₂ / CH₂Cl₂ / 3 h / -20 °C

2.1: Na₂CO₃ / methanol / 6 h / -5 °C

3.1: 0.33 g / DMAP; imidazole / CH₂Cl₂ / 0 - 20 °C

4.1: DIBAL-H / CH₂Cl₂ / 2 h / -78 - -40 °C

4.2: 90 percent / NaBH₄ / methanol / 0.25 h / 0 °C

5.1: 98 percent / pyridine / CH₂Cl₂ / 0 - 20 °C

6.1: 65 percent / H₅IO₆ / tetrahydrofuran / 0.05 h / 0 °C

7.1: CeCl₃*7H₂O; NaBH₄ / methanol / 1 h / -20 °C

7.2: 80 percent / imidazole; Et₃N / CH₂Cl₂ / 32 h / 20 °C

8.1: LiOH*H₂O / methanol; H₂O / 0.5 h / 20 °C

8.2: 79.4 percent / Et₃N; PCC / CH₂Cl₂ / 3 h / 20 °C

With pyridine; 1H-imidazole; dmap; lithium hydroxide; sodium tetrahydroborate; cerium(III) chloride; boron trifluoride diethyl etherate; diisobutylaluminium hydride; sodium carbonate; periodic acid; In tetrahydrofuran; methanol; dichloromethane; water; 7.1: Luche reduction;
DOI:10.1016/j.tetasy.2004.06.016

Reference yield:

: 58479-61-1
tert-butylchlorodiphenylsilane

: 769168-68-5
(7S,9R)-7,9-bis(tert-butyldiphenylsilyloxy)-3-oxabicyclo[4.3.0]non-1-en-2-one

Guidance literature:: Multi-step reaction with 2 steps

1.1: CeCl₃*7H₂O; NaBH₄ / methanol / 1 h / -20 °C

1.2: 80 percent / imidazole; Et₃N / CH₂Cl₂ / 32 h / 20 °C

2.1: LiOH*H₂O / methanol; H₂O / 0.5 h / 20 °C

2.2: 79.4 percent / Et₃N; PCC / CH₂Cl₂ / 3 h / 20 °C

With lithium hydroxide; sodium tetrahydroborate; cerium(III) chloride; In methanol; water; 1.1: Luche reduction;
DOI:10.1016/j.tetasy.2004.06.016