131614-08-9

Upstream product

• 124156-38-3 trans-1-p-anisyl-3-acetyl-4-carbomethoxy-2-azetidinone 
• 131533-32-9 (1'S^*,3R^*,4S^*)-3-(1-hydroxyethyl)-4-methoxycarbonyl-1-(4-methoxyphenyl)azetidin-2-one 
• 124156-20-3 (4-methoxyphenyl-benzylidene)-carbamic acid methyl ester 
• 128571-96-0 (1'S^*,3R^*,4S^*)-3-<1-(dimethylphenylsilyl)ethyl>-4-methoxycarbonyl-1-(4-methoxyphenyl)azetidin-2-one 
• 131533-31-8 (2R,3S)-3-[(R)-1-(Fluoro-dimethyl-silanyl)-ethyl]-1-(4-methoxy-phenyl)-4-oxo-azetidine-2-carboxylic acid methyl ester 
• 135616-75-0 (S)-3-Benzenesulfinyl-3-ethyl-1-(4-methoxy-phenyl)-4-oxo-azetidine-2-carboxylic acid methyl ester 

Downstream Products

• 131533-35-2 E-3-Ethylidene-4-(methoxycarbonyl)-1-(4-methoxyphenyl)azetidin-2-one 

Relevant academic research and scientific papers

Formation of 3-azetidin-2-ones: Stereocontrolled Formal Approach to (+/-)-Thienamycin and (+/-)-β-(Hydroxyalkyl)aspartic Acid Derivatives

Reaction between (+/-)-β-(dimethylphenylsilyl)alkanoyl chlorides and imines of glyoxylic esters provided a route to (+/-)-cis-3--4-alkoxycarbonyl β-lactams, while addition of the Fleming's silylcuprate reagent to methyl crot

Preparation of 3-Alkyl β-Lactams via the Ketene-Imine Cycloaddition Reaction Using α-(Phenylthio)alkanoyl Halides as Starting Materials:Application to the Synthesis of (+/-)-Carbapenem Building Blocks and Related Compounds

Preparation of appropriately substituted 3-alkyl β-lactams via the ketene (or equivalent)-imine cycloaddition reaction is described.The dehydrochlorination reaction of α-(phenylthio)alkanoyl chlorides with triethylamine in the presence of imines derived f