1,7-Electrocyclic substitution by nitrile ylides: the effect on the reaction rate of the nature of the γ,δ-double bond and of aromatic substituents
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 9,p. 658-660
- https://doi.org/10.1039/c39910000658
Abstract
In the competitive cyclisation of 7 to give 9 and 10, all substituents in the 3′ and 4′ positions increased the overall reaction rate relative to that of the 2-phenyl ring; 6-alkenyl and -thienyl groups also reacted faster than the 2-phenyl ring.Keywords
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