73197-60-1

Upstream product

• 60769-88-2 rel-(1S,5R,7R)-7-acetoxy-5-ethoxycarbonyl-1-phenyl-2-azabicyclo<3.2.0>heptane-3,4-dione 
• 77800-67-0 3-Acetoxy-7-ethoxy-5-ethoxycarbonyl-6-hydroxy-2-phenyl-4H-azepine 

Downstream Products

• 133487-85-1 5-Acetoxy-3-ethoxycarbonyl-2-methoxycarbonyl-6-phenylpyridine 
• 77800-67-0 3-Acetoxy-7-ethoxy-5-ethoxycarbonyl-6-hydroxy-2-phenyl-4H-azepine 
• 99697-87-7 Acetic acid 6,7-dioxo-2-phenyl-4,5,6,7-tetrahydro-1H-azepin-3-yl ester 
• 133487-96-4 3-Acetoxy-5,6-diethoxycarbonyl-2-phenylpyridine 
• 77800-71-6 6-Acetoxy-2-ethoxy-4-ethoxycarbonyl-7-phenyl-3H-azepin-3-one 
• 99697-92-4 5-Acetoxy-6-phenyl-pyridine-2-carboxylic acid methyl ester 

Relevant academic research and scientific papers

2-AZABICYCLOHEPTANE-3,4-DIONES (3): LEWIS ACID CATALYSED RING EXPANSION OF 3-ETHOXY-Δ2-AZABICYCLOHEPTAN-4-ONES: SYNTHESIS OF 2-ETHOXY-3-AZATROPONES

Treatment of 2-azabicycloheptane-3,4-dione imidic ester (6) with tin(IV) chloride gave the dihydroazatropolone 2-ethyl ethers (7) in moderate yields which were also obtained by reaction of dihydroazatropolones (2) with Meerwein reagent.DDQ oxidation of 7 gave 2-ethoxy-3-azatropones (8), which rearranged, on treatment with water, into ethyl pyridine 2-carboxylate (10).Spectroscopic data of azatropolone 2-ethyl ethers were also described.