161870-82-2

Upstream product

• 76899-07-5 (3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one 

Downstream Products

• 132033-87-5 {(3S,4R)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-4-thiobenzoylsulfanyl-azetidin-1-yl}-oxo-acetic acid 2-trimethylsilanyl-ethyl ester 
• 132427-56-6 (5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-7-oxo-3-phenyl-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-trimethylsilanyl-ethyl ester 

Relevant academic research and scientific papers

Alkylphosphonous acid diesters, novel reagents for the oxalimide cyclization to penems

Alkylphosphonous acid diesters MeP(OR)2 3a-b were shown to be highly effective and mild reducing reagents in the oxalimide cyclization of azetidinone-1-oxalyl-4-di or tri-thiocarbonates or 4-thioesters 1a-t forming penems 2a-t at lower temperat