(S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione

Base Information

• Chemical Name: (S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione
• CAS No.: 209257-77-2
• Molecular Formula: C₂₂H₂₉NOSSi
• Molecular Weight: 383.63
• Mol file: 209257-77-2.mol

Synonyms:(S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione

Chemical Property of (S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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MSDS Files:

Useful:

Technology Process of (S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione

There total 1 articles about (S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione 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%

(S)-6-((tert-butyldiphenylsilyloxy)methyl)piperidin-2-one (209257-75-0) → (S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione (209257-77-2)

Guidance literature:

With Lawessons reagent; In toluene; for 1h; Heating;

DOI:10.1016/S0040-4020(98)00283-X

Reference yield: 81.0%

Diethyl 2-bromomalonate (685-87-0) + (S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione (209257-77-2) → 2-[(S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidin-2-ylidene]-malonic acid diethyl ester (209257-79-4)

Guidance literature:

In dichloromethane; 1) 0 deg C to room temperature, 2) room temperature, 18 h;

DOI:10.1016/S0040-4020(98)00283-X

Reference yield:

(S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidine-2-thione (209257-77-2) → 2-((S)-6-Phenylsulfanylmethyl-piperidin-2-ylidene)-malonic acid diethyl ester

Guidance literature:

Multi-step reaction with 5 steps

1: 81 percent / CH₂Cl₂ / 1) 0 deg C to room temperature, 2) room temperature, 18 h

2: 78 percent / TBAF / tetrahydrofuran / 1) 0 deg C to room temperature, 2) room temperature, 18 h

3: 99 percent / Et₃N / CH₂Cl₂ / 1 h / 0 °C

4: 11 percent / KH / tetrahydrofuran / 1) room temperature, 1 h, 2) reflux, 90 min

5: 82 percent / Et₃N / tetrahydrofuran / 168 h

With tetrabutyl ammonium fluoride; potassium hydride; triethylamine; In tetrahydrofuran; dichloromethane;

DOI:10.1016/S0040-4020(98)00283-X

upstream raw materials:

(S)-6-((tert-butyldiphenylsilyloxy)methyl)piperidin-2-one

Downstream raw materials:

2-[(S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-piperidin-2-ylidene]-malonic acid diethyl ester