131900-48-6

Upstream product

• 61540-13-4 tert-butyl thiopropionate 
• 110416-25-6 ethyl (E)-2-(α-methylbenzylimino)glyoxylate 

Downstream Products

• 110416-20-1 Benzoic acid (2S,3R)-3-methyl-4-oxo-azetidin-2-ylmethyl ester 
• 110416-19-8 Benzoic acid (2S,3S)-3-methyl-4-oxo-azetidin-2-ylmethyl ester 
• 110361-85-8 Benzoic acid (2R,3R)-3-methyl-4-oxo-azetidin-2-ylmethyl ester 
• 110416-18-7 Benzoic acid (2R,3S)-3-methyl-4-oxo-azetidin-2-ylmethyl ester 
• 110361-92-7 3-Methyl-4-oxo-1-(1-phenyl-ethyl)-azetidine-2-carboxylic acid ethyl ester 
• 110361-92-7 (2S,3S)-3-Methyl-4-oxo-1-((R)-1-phenyl-ethyl)-azetidine-2-carboxylic acid ethyl ester 

Relevant academic research and scientific papers

The Asymmetric Addition of the Sn(II) Enolates of Thioesters to α-Iminoesters. A Convenient Synthesis of Optically Active cis-Substituted β-Lactams.

The asymmetric addition of the Sn(II) enolates derived from thioesters to α-iminoesters having the chiral auxiliary on the nitrogen atom proceeds smoothly to afford syn-β-aminoacid derivatives, which are in turn converted to optically active cis-substituted β-lactams.