Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester

Base Information

• Chemical Name: Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester
• CAS No.: 393184-88-8
• Molecular Formula: C₃₂H₅₄O₅SSi
• Molecular Weight: 578.929
• Mol file: 393184-88-8.mol

Synonyms:Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester

Chemical Property of Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester

There total 4 articles about Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester 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: 91.0%

Toluene-4-sulfonic acid (S)-2-[(S)-1-((1R,3aR,4S,7aR)-4-hydroxy-7a-methyl-octahydro-inden-1-yl)-ethyl]-5-methyl-5-triethylsilanyloxy-hexyl ester (386743-52-8) → Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester (393184-88-8)

Guidance literature:

With dipyridinium dichromate; In dichloromethane; at 20 ℃; for 5h;

DOI:10.1016/j.tetlet.2016.05.045

Reference yield:

(1R,3aR,4S,7aR)-1-((1S,2S)-2-Hydroxymethyl-1,5-dimethyl-5-triethylsilanyloxy-hexyl)-7a-methyl-octahydro-inden-4-ol (308123-37-7) → Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester (393184-88-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 82 percent / pyridine / 0 °C

2: 75 percent / PDC / CH₂Cl₂

With pyridine; dipyridinium dichromate; In dichloromethane;

DOI:10.1016/S0040-4039(01)01673-2

Reference yield:

p-toluenesulfonyl chloride (98-59-9) → Toluene-4-sulfonic acid (S)-5-methyl-2-[(S)-1-((1R,3aR,7aR)-7a-methyl-4-oxo-octahydro-inden-1-yl)-ethyl]-5-triethylsilanyloxy-hexyl ester (393184-88-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 82 percent / pyridine / 0 °C

2: 75 percent / PDC / CH₂Cl₂

With pyridine; dipyridinium dichromate; In dichloromethane;

DOI:10.1016/S0040-4039(01)01673-2

upstream raw materials:

Toluene-4-sulfonic acid (S)-2-[(S)-1-((1R,3aR,4S,7aR)-4-hydroxy-7a-methyl-octahydro-inden-1-yl)-ethyl]-5-methyl-5-triethylsilanyloxy-hexyl ester

p-toluenesulfonyl chloride

(1R,3aR,4S,7aR)-1-((1S,2S)-2-Hydroxymethyl-1,5-dimethyl-5-triethylsilanyloxy-hexyl)-7a-methyl-octahydro-inden-4-ol

2-[(S)-1-((1R,3aR,4S,7aR)-4-Hydroxy-7a-methyl-octahydro-inden-1-yl)-ethyl]-5-methyl-5-triethylsilanyloxy-hexanenitrile

Downstream raw materials:

Toluene-4-sulfonic acid (S)-2-((S)-1-{(1R,3aS,7aR)-4-[2-[(S)-5-(tert-butyl-dimethyl-silanyloxy)-2-methylene-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-ethyl)-5-methyl-5-triethylsilanyloxy-hexyl ester