76640-38-5

Upstream product

• 76640-37-4 1-p-Anisyl-3-carbethoxyacetonylamino-4-(3,4-methylenedioxyphenyl)azetidin-2-one 
• 24033-09-8 N-(benzo[d][1,3]dioxol-5-ylmethylene)-4-methoxyaniline 
• 24033-09-8 3,4-Methylenedioxybenzylidene-p-anisidine 

Downstream Products

• 76640-39-6 (3S,4R)-4-Benzo[1,3]dioxol-5-yl-3-{[1-benzo[1,3]dioxol-5-yl-meth-(E)-ylidene]-amino}-1-(4-methoxy-phenyl)-azetidin-2-one 
• 76640-39-6 (3S,4R)-4-Benzo[1,3]dioxol-5-yl-3-{[1-benzo[1,3]dioxol-5-yl-meth-(Z)-ylidene]-amino}-1-(4-methoxy-phenyl)-azetidin-2-one 
• 87702-93-0 (3S,4R,3''S,4''R)-4',4''-Bis-benzo[1,3]dioxol-5-yl-4-(3,4-dimethoxy-phenyl)-1''-(4-methoxy-phenyl)-3-phenoxy-[1,3';1',3'']terazetidine-2,2',2''-trione 
• 76640-36-3 1-p-Anisyl-3-azetidino>-4-(3,4-methylenedioxyphenyl)azetidin-2-one 

Relevant academic research and scientific papers

Synthesis of Some Novel Di- and Tri-β-lactams from Glycine

Annelation of the schiff bases (II) with appropriate β-lactam acids (I) results in the formation of di-β-lactams (III).Alternately IIIb can also be prepared as follows: Potassium carbethoxyacetonylglycinate (IV) on treatment with schiff base (IIb) using P

Conversion of some monocyclic β-lactams into novel di-β-lactams

Monocyclic β-lactams (V & XI) carrying a carboxy function have been used to annelate the Schiff bases (II & X) using POCl3 in the presence of triethylamine to obtain the di-β-lactams (VI & XII). Alternately, (VI) could also be prepared by annelation of the Schiff base (IX) derived from the α-amino-β-lactam (VIII), with phenoxyacetyl chloride.