(Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one

Base Information

• Chemical Name: (Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one
• CAS No.: 945628-01-3
• Molecular Formula: C₂₂H₂₉NO₃S₂Si
• Molecular Weight: 447.695
• Mol file: 945628-01-3.mol

Synonyms:(Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one

Chemical Property of (Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one

There total 3 articles about (Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-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: 60.0%

N-(1-tert-butyl-1-methyl-2-propynyl)-p-toluenesulfonamide (875612-04-7) + dimethyl-thiophen-2-yl-silane (23395-45-1) + carbon monoxide (201230-82-2) → (Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one (945628-01-3)

Guidance literature:

With 1,8-diazabicyclo[5.4.0]undec-7-ene; dodecacarbonyltetrarhodium⁽⁰⁾; In dichloromethane; at 100 ℃; for 6h; under 22801.5 Torr;

DOI:10.1016/j.tet.2007.04.064

Reference yield:

p-toluenesulfonyl chloride (98-59-9) → (Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one (945628-01-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 40 percent / aq. NaOH / dimethylformamide / 50 °C

2: 60 percent / DBU / Rh₄(CO)12 / CH₂Cl₂ / 6 h / 100 °C / 22801.5 Torr

With sodium hydroxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; dodecacarbonyltetrarhodium⁽⁰⁾; In dichloromethane; N,N-dimethyl-formamide;

DOI:10.1016/j.tet.2007.04.064

Reference yield:

3-amino-3,4,4-trimethyl-1-pentyne (167258-38-0) → (Z)-4-methyl-4-tert-butyl-3-[(dimethyl-α-thienylsilyl)methylene]-3-(p-tosyl)-1-azetidin-2-one (945628-01-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 40 percent / aq. NaOH / dimethylformamide / 50 °C

2: 60 percent / DBU / Rh₄(CO)12 / CH₂Cl₂ / 6 h / 100 °C / 22801.5 Torr

With sodium hydroxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; dodecacarbonyltetrarhodium⁽⁰⁾; In dichloromethane; N,N-dimethyl-formamide;

DOI:10.1016/j.tet.2007.04.064

upstream raw materials:

N-(1-tert-butyl-1-methyl-2-propynyl)-p-toluenesulfonamide

dimethyl-thiophen-2-yl-silane

carbon monoxide

p-toluenesulfonyl chloride