Heterocycles p. 1929 - 1934 (1988)
Update date:2022-08-23
Topics:
Stevenson, Robert
Weber, James V.
Isopropylidene methylenemalonate (methylene Meldrum's acid) serves as a heterodiene, rather than dienophile in 1:1 adduct formation at room temperature with isosafrole, styrene and p-methoxystyrene.The resultant aryltrioxabicyclo<4.4.0>dec-1(6)-en-5-one heterocyclic products are degraded under mild hydrolytic conditions to yield the corresponding δ-aryl-δ-valerolactone or 5-arylpent-4-enoic acid.
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(1999)
