(9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

Base Information

Chemical Name:(9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene
CAS No.:769168-65-2
Molecular Formula:C₃₁H₄₀O₅S₂Si
Molecular Weight:584.873
Hs Code.:

Synonyms:(9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

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Chemical Property of (9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

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Technology Process of (9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

There total 3 articles about (9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene 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: 98.0%

: 108-24-7
acetic anhydride

: 769168-64-1
(9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-hydroxyethyl)-7-hydroxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

: 769168-65-2
(9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

Guidance literature:: With pyridine; In dichloromethane; at 0 - 20 ℃;
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

: 769168-65-2
(9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

Guidance literature:: Multi-step reaction with 5 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

With pyridine; 1H-imidazole; dmap; boron trifluoride diethyl etherate; diisobutylaluminium hydride; sodium carbonate; In methanol; dichloromethane;
DOI:10.1016/j.tetasy.2004.06.016

Reference yield:

: 310905-01-2
(9S)-9-acetoxy-7-methoxycarbonyl-8-methoxycarbonylmethyl-1,5-dithiaspiro[5.4]dec-7-ene

: 769168-65-2
(9S)-9-(tert-butyldiphenylsilyloxy)-8-(2-acetoxyethyl)-7-acetoxymethyl-1,5-dithiaspiro[5.4]dec-7-ene

Guidance literature:: Multi-step reaction with 4 steps

1.1: Na₂CO₃ / methanol / 6 h / -5 °C

2.1: 0.33 g / DMAP; imidazole / CH₂Cl₂ / 0 - 20 °C

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

3.2: 90 percent / NaBH₄ / methanol / 0.25 h / 0 °C

4.1: 98 percent / pyridine / CH₂Cl₂ / 0 - 20 °C

With pyridine; 1H-imidazole; dmap; diisobutylaluminium hydride; sodium carbonate; In methanol; dichloromethane;
DOI:10.1016/j.tetasy.2004.06.016