3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

Base Information

• Chemical Name: 3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester
• CAS No.: 146383-37-1
• Molecular Formula: C₂₀H₁₇NO₃S
• Molecular Weight: 351.426
• Mol file: 146383-37-1.mol

Synonyms:3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

Chemical Property of 3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

There total 5 articles about 3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl 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: 45.0%

2-((R)-2-Benzenesulfonylsulfanyl-4-oxo-azetidin-1-yl)-buta-2,3-dienoic acid benzhydryl ester (146383-35-9) → 3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester (146383-37-1)

Guidance literature:

With bismuth(III) chloride; zinc; In tetrahydrofuran; for 1h; Ambient temperature;

DOI:10.1039/c39920001793

Reference yield:

2-((R)-2-Benzenesulfonylsulfanyl-4-oxo-azetidin-1-yl)-3-oxo-butyric acid benzhydryl ester → 3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester (146383-37-1)

Guidance literature:

Multi-step reaction with 3 steps

1: 87 percent / Et₃N / CH₂Cl₂ / -78 °C

2: 100 percent / Et₃N / tetrahydrofuran / -20 °C

3: 45 percent / BiCl₃, Zn / tetrahydrofuran / 1 h / Ambient temperature

With bismuth(III) chloride; triethylamine; zinc; In tetrahydrofuran; dichloromethane;

DOI:10.1039/c39920001793

Reference yield:

(R)-2-((R)-2-Benzenesulfonylsulfanyl-4-oxo-azetidin-1-yl)-3-methyl-but-3-enoic acid benzhydryl ester → 3-methylene-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester (146383-37-1)

Guidance literature:

Multi-step reaction with 4 steps

1: 82 percent / O₃ / CH₂Cl₂; methanol / -78 °C

2: 87 percent / Et₃N / CH₂Cl₂ / -78 °C

3: 100 percent / Et₃N / tetrahydrofuran / -20 °C

4: 45 percent / BiCl₃, Zn / tetrahydrofuran / 1 h / Ambient temperature

With bismuth(III) chloride; ozone; triethylamine; zinc; In tetrahydrofuran; methanol; dichloromethane;

DOI:10.1039/c39920001793

upstream raw materials:

2-((R)-2-Benzenesulfonylsulfanyl-4-oxo-azetidin-1-yl)-buta-2,3-dienoic acid benzhydryl ester

Downstream raw materials:

(R)-7-Oxo-3-trifluoromethanesulfonyloxy-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid benzhydryl ester

3,7-dioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester