C₂₁H₂₀S₄Si

Base Information

• Chemical Name: C₂₁H₂₀S₄Si
• CAS No.: 1280592-11-1
• Molecular Formula: C₂₁H₂₀S₄Si
• Molecular Weight: 428.739
• Mol file: 1280592-11-1.mol

Synonyms:C₂₁H₂₀S₄Si

Chemical Property of C₂₁H₂₀S₄Si

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

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Technology Process of C₂₁H₂₀S₄Si

There total 4 articles about C₂₁H₂₀S₄Si 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: 59.0%

C19H20S4Si (1280592-10-0) + trimethylsilylacetylene (1066-54-2) → C21H20S4Si (1280592-11-1)

Guidance literature:

C₁₉H₂₀S₄Si; With potassium carbonate; In tetrahydrofuran; methanol; at 20 ℃; for 0.333333h;

trimethylsilylacetylene; With copper(l) iodide; N,N,N,N,-tetramethylethylenediamine; In dichloromethane; at 20 ℃; for 4.5h;

DOI:10.1021/jo2000447

Reference yield:

dimethyl 4,5-bis(methylthio)-1,3-dithiole phosphonate ester (138519-02-5) → C21H20S4Si (1280592-11-1)

Guidance literature:

Multi-step reaction with 3 steps

1.1: n-butyllithium / tetrahydrofuran / 0.33 h / -78 °C

1.2: -78 - 20 °C

2.1: potassium carbonate / tetrahydrofuran; methanol / 0.5 h / 20 °C

2.2: 3 h / 20 °C

3.1: potassium carbonate / tetrahydrofuran; methanol / 0.33 h / 20 °C

3.2: 4.5 h / 20 °C

With n-butyllithium; potassium carbonate; In tetrahydrofuran; methanol; 1.2: Horner-Wadsworth-Emmons reaction / 2.2: Hay coupling / 3.2: Hay coupling;

DOI:10.1021/jo2000447

Reference yield:

C17H20S4Si (1207513-37-8) → C21H20S4Si (1280592-11-1)

Guidance literature:

Multi-step reaction with 2 steps

1.1: potassium carbonate / tetrahydrofuran; methanol / 0.5 h / 20 °C

1.2: 3 h / 20 °C

2.1: potassium carbonate / tetrahydrofuran; methanol / 0.33 h / 20 °C

2.2: 4.5 h / 20 °C

With potassium carbonate; In tetrahydrofuran; methanol; 1.2: Hay coupling / 2.2: Hay coupling;

DOI:10.1021/jo2000447

upstream raw materials:

C₁₇H₂₀S₄Si

C₁₉H₂₀S₄Si

trimethylsilylacetylene

4-[(trimethylsilyl)ethynyl]bezaldehyde

Downstream raw materials:

C₃₆H₂₂S₈