141040-22-4

Upstream product

• 133693-70-6 trans-(3R,4S)-1-(4-methoxyphenyl)-3-(2,2,5,5-tetramethyl-1-aza-2,5-disilacyclopentyl)-4-<(1'S)-1',2'-O-isopropylideneethyl>-2-azetidinone 
• 103239-04-9 N-(p-anisyl)-4-<(S)-2',2'-dimethyl-1',3'-dioxolan-4'-yl>-methylene-imine 
• 103174-02-3 (3R,4S)-cis-1-(p-anisyl)-3-acetoxy-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>azetidin-2-one 
• 115857-84-6 (3R,4S)-3-(Benzyloxy)-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>-1-(4-methoxyphenyl)azetidin-2-one 
• 115828-88-1 (3R,4S)-cis-1-(p-anisyl)-3-(mesyloxy)-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>azetidin-2-one 
• 115828-87-0 (3R,4S)-cis-1-(p-anisyl)-3-hydroxy-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>azetidin-2-one 
• 301533-10-8 (3S,4R)-trans-1-(p-anisyl)-3-azido-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>azetidin-2-one 

Downstream Products

• 301532-83-2 (3S,4R)-trans-1-(p-anisyl)-3-phthalimido-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>azetidin-2-one 
• 141040-23-5 trans-(3R,4S)-1-(4-methoxyphenyl)-3-phthalimido-4-<(1'S)-1',2'-O-isopropylideneethyl>-2-azetidinone 

Relevant academic research and scientific papers

Enantioselective Synthesis of 3-Amino-2-azetidinones via the Ester Enolate-Imine Condensation

Three approaches to the enantioselective synthesis of 3-amino-4-substituted-2-azetidinones by condensation of α-amino ester enolates with imines are described: (i) application of chiral ester derivatives of N,N-diethylglycine; (ii) application of chiral N

Studies on Lactams. 81. Enantiospecific Synthesis and Absolute Configuration of Substituted β-Lactams from D-Glyceraldehyde Acetonide

Optically active 3,4-disubstituted 2-azetidinones have been prepared in good yield by the annelation of Schiff bases from D-glyceraldehyde acetonide with acid chlorides (or equivalent) and triethylamine.The utility of this enantiospecific synthesis was ex