93692-57-0

Upstream product

• 269716-23-6 1-bromo-2-(trimethylsilyl)oxy-3-aza-4-p-nitro-phenyl-1,3-butadiene 
• 160313-81-5 [1-(4-Nitro-phenyl)-meth-(E)-ylidene]-trimethylsilanyl-amine 
• 555-16-8 4-nitrobenzaldehdye 

Relevant academic research and scientific papers

A trans-stereoselective synthesis of 3-halo-4-alkyl(aryl)-NH-azetidin-2-ones

Conrotatory ring closure of 1-halo-3-aza-4-alkyl-1,3-dienes in refluxing toluene gives rise to 3-halo-4-aryl-2-azetidinones in satisfactory yields. Dehalogenation of the resulting β-lactams by tris(trimethylsilyl)silane furnished 3-unsubstituted azetidino