1172623-40-3

Upstream product

• 108-94-1 cyclohexanone 
• 98974-04-0 (4R)-4-ethyl-1,3-oxazolidin-2-one 

Downstream Products

• 1172623-49-2 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-(4-bromophenyl)-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid ethyl ester 
• 1172623-47-0 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-phenyl-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid propyl ester 
• 1172623-48-1 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-phenyl-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid butyl ester 
• 1172623-50-5 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-p-tolyl-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid methyl ester 
• 1172623-52-7 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-(4-methoxyphenyl)-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid methyl ester 
• 1172623-53-8 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-(3,4,5-trimethoxyphenyl)-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid methyl ester 
• 1172623-45-8 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-phenyl-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid methyl ester 
• 1172623-46-9 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-phenyl-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid ethyl ester 
• 1172623-51-6 (4S,4aR,8aR)-8a-[(4R)-4-ethyl-2-oxo-1,3-oxazolidin-3-yl]-4-(4-chlorophenyl)-4a,5,6,7,8,8a-hexahydro-4H-chromene-2-carboxylic acid methyl ester 

Relevant academic research and scientific papers

Hetero-diels-alder reactions of cyclic ketone derived enamide. A new and efficient concept for the asymmetric robinson annulation

Chiral enamides, easily prepared in one step from a cyclic ketone and an oxazolidinone, are successfully employed in high-yielding, endo, and facially selective Hetero-Diels-Alder reactions involving activated oxadienes and Siever's reagent as catalyst. F