Showing papers on "Benzopyrans published in 1969"
TL;DR: In this article, it was shown that the isomerization of o-cis-butadienylphenols to benzopyrans proceeds via 2-allylidenecyclohexadienones.
Abstract: Evidence is presented which suggests that the isomerization of o-cis-butadienylphenols to benzopyrans proceeds via 2-allylidenecyclohexadienones.
7 citations