121899-27-2

Upstream product

• 27871-55-2 3,4-diacetylhex-3-ene-2,5-dione 
• 15500-74-0 4-chlorobenzonitrile N-oxide 

Downstream Products

• 121899-40-9 Acetic acid 5-(4-acetyl-2,5-dimethylene-2,5-dihydro-furan-3-yl)-3-(4-chloro-phenyl)-4,5-dihydro-isoxazol-5-yl ester 
• 121899-42-1 Acetic acid 5-(5-acetoxy-4-acetyl-5-methyl-2-methylene-2,5-dihydro-furan-3-yl)-3-(4-chloro-phenyl)-4,5-dihydro-isoxazol-5-yl ester 

Relevant academic research and scientific papers

Tetraacetylethylene adn Nitrile Oxides: Synthesis of Spirofuranisoxazoles

trans and cis-3-Hexen-2,5-dione, 2, reacted with nitrile oxides to give 4,5-dihydroisoxazoles 3a-c with the trans configuration.On the contrary the reaction between 3,4-diacetyl-3-hexen-2,5-dione, 1, with nitrile oxides yielded 3-aryl-8,9-diacetyl-7-hydro