Tetrahedron Letters p. 971 - 974 (1986)
Update date:2022-09-26
Topics:
Shishido, Kozo
Hiroya, Kou
Fukumoto, Keiichiro
Kametani, Tetsuji
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.
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