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2004
C-C bond formation
O 0282
A New, Efficient Method for Direct α-Alkenylation of β-Dicarbonyl Compounds
Phenols Using Alkenyltriarylbismuthonium Salts. — The efficiency of the
49- 052 and
α-alkenylation is found to depend on the nature of aryl and vinyl substituents in bismuthonium salts. The reaction of α-unsubstituted β-dicarbonyl compounds or phenols
leads to dialkenylated products. The corresponding monoalkenylated derivatives cannot be isolated. — (MATANO*, Y.; IMAHORI, H.; J. Org. Chem. 69 (2004) 16,
5505-5508; Dep. Mol. Eng., Grad. Sch. Eng., Kyoto Univ., Nishikyo, Kyoto 615,
Japan; Eng.) — Jannicke
2004
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