60769-90-6

Upstream product

• 60769-90-6 rel-(1S,5R,7R)-7-acetoxy-5-ethoxycarbonyl-7-methyl-1-phenyl-2-azabicyclo<3.2.0>heptane-3,4-dione 
• 108-22-5 Isopropenyl acetate 
• 59046-34-3 3-ethoxycarbonyl-2-phenyldioxopyrroline 

Downstream Products

• 60769-90-6 rel-(1S,5R,7S)-7-acetoxy-5-ethoxycarbonyl-7-methyl-1-phenyl-2-azabicyclo<3.2.0>heptane-3,4-dione 
• 80016-16-6 dl-(1R*,5S*,7R*)-7-acetoxy-3-ethoxy-5-ethoxycarbonyl-7-methyl-1-phenyl-2-azabicyclo<3.2.0>hept-2-en-4-one 
• 80016-24-6 2-ethoxy-5-ethoxycarbonyl-3-methyl-6-phenylpyridine 
• 80016-16-6 dl-(1R*,5S*,7S*)-7-acetoxy-3-ethoxy-5-ethoxycarbonyl-7-methyl-1-phenyl-2-azabicyclo<3.2.0>hept-2-en-4-one 

Relevant academic research and scientific papers

Dioxopyrrolines. XXXVI. Photocycloaddition Reaction of 4-Ethoxycarbonyl-5-phenyl-1H-pyrrole-2,3-dione to Acyclic Olefins. Structural and Stereochemical Assigment of the Photocycloadducts

The photocycloaddition of the dioxopyrroline 1 to olefins with electron donating substituents proceeded with regio- and stereo-selectivity to give the 7-substituted 2-azabicycloheptane-3,4-diones 2 and 3, together with, in a few instances, the dihydropyridone 4.The stereochemistries of the adducts were dependent on the nature of the olefins.Olefins carrying phenyl, vinyl, and alkyl substituents afforded the exo-adducts 2, while olefins carrying an O-substituent afforded the endo-adducts 3, predominantly.The structures of these cycloadducts were established by X-ray crystallographic analyses, chemical correlations, and spectroscopic means.Keywords-photocycloaddition; 1H-pyrrole-2,3-dione; dioxopyrroline; 2-azabicyclo-heptane-3,4-dione; electron rich olefin; stereochemistry; cycloadduct; X-ray analysis