105874-99-5Relevant articles and documents
TANDEM ELECTROCYCLIC-SIGMATROPIC REACTION OF BENZOCYCLOBUTENES. 2. A NEW ROUTE TO ISOCHROMAN-3-ONE-4-SPIRO-1'-CYCLOALK-3'-ENES
Shishido, Kozo,Hiroya, Kou,Fukumoto, Keiichiro,Kametani, Tetsuji
, p. 971 - 974 (2007/10/02)
Thermolyses of the benzocyclobutenylspirolactones, easily derived from 1-cyano-5-methoxybenzocyclobutene, afforded isochroman-3-one-4-spiro-1'-cycloalk-3'-enes in good yields via tandem electrocyclic-sigmatropic reaction of o-quinodimethane.