Catalytic ethenylation reaction of phenol using SnCl4.
[figure: see text] Ethenylation reaction of phenol with silylethyne at the o-position is catalyzed by the SnCl4-BuLi reagent. While turn over numbers (TONs) in the reactions of m- or p-substituted phenols are 3 to 4, those for o-substituted phenols are 8 to 9.
Kobayashi
K
K
Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan.
Yamaguchi
M
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