182363-75-3Relevant articles and documents
Synthesis and photochemistry of spiro[2.5]octa-1,4-dien-3-ones. Reversible biradical formation and biradical-olefin cycloaddition
Schultz, Arthur G.,Taveras, Arthur G.
, p. 5853 - 5856 (2007/10/03)
Photolysis of the spiro[2.5]octa-1,4-dien-3-one 9a results in photoisomerization via the nitrile-stabilized biradical 10. Photolysis of dienone 9b in the presence of tetramethylethylene gave spiro[4.5]deca-1,4-dien-3-one 12 by cycloaddition of the intermediate biradical 11 to tetramethylethylene.