142581-44-0

Basic information

• Product Name: (3RS,4SR)-(+/-)-1-Benzyl-3-<(5RS)-3,4-dichlor-2,5-dihydro-5-methoxy-2-oxo-1H-pyrrol-1-yl>-4-styrylazetidin-2-on
• CAS NO: 142581-44-0
• Molecular Weight: 443.329
• Mol File: 142581-44-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (3RS,4SR)-(+/-)-1-Benzyl-3-<(5RS)-3,4-dichlor-2,5-dihydro-5-methoxy-2-oxo-1H-pyrrol-1-yl>-4-styrylazetidin-2-on(CAS DataBase Reference)
• NIST Chemistry Reference: (3RS,4SR)-(+/-)-1-Benzyl-3-<(5RS)-3,4-dichlor-2,5-dihydro-5-methoxy-2-oxo-1H-pyrrol-1-yl>-4-styrylazetidin-2-on(142581-44-0)
• EPA Substance Registry System: (3RS,4SR)-(+/-)-1-Benzyl-3-<(5RS)-3,4-dichlor-2,5-dihydro-5-methoxy-2-oxo-1H-pyrrol-1-yl>-4-styrylazetidin-2-on(142581-44-0)

Safety Data

• Hazardous Substances Data: 142581-44-0(Hazardous Substances Data)

Upstream product

• 100-46-9 benzylamine 
• 104-55-2 3-phenyl-propenal 
• 142581-40-6 (+/-)-(3,4-Dichlor-2,5-dihydro-5-methoxy-2-oxo-1H-pyrrol-1-yl)essigsaeure-tert-butylester 
• 142581-39-3 (+/-)-3,4-Dichlor-1,5-dihydro-5-methoxy-2H-pyrrol-2-on 
• 60293-41-6 N-((E)-3-phenylallylidene)benzylamine 
• 142581-41-7 (+/-)-(3,4-Dichlor-2,5-dihydro-5-methoxy-2-oxo-1H-pyrrol-1-yl)essigsaeure 

Relevant articles and documents

Chemistry of Mucohalic Acids, VII. - Asymmetric Synthesis of β-Lactam Derivatives by the Ketene-Imine Cycloaddition Utilizing Chiral Mucohalic Acid Derivatives

The ketene derivative 5 of the chiral pyrrolinone 4 underwent nonconcerted cycloadditions with imines leading to cis-β-lactams 6a-d with 99percent diastereoisomeric excess. rac-4 was resolved efficiently by crystallisation of diastereoisomeric a