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Communication | Special issue | Vol 56, No. 1-2, 2002, pp.85-89
Published online, 1st January, 1970
DOI: 10.3987/COM-01-S(K)41
Ring Closing Metathesis Reaction of Dienes with Acrylate Moiety Leading to 5- to 7-Membered Lactones and Cyclization to 14-Membered Rings

Katsuyuki Nakashima, Masashi Imoto, Takuo Miki, Takahiro Miyake, Norihiro Fujisaki, Shiori Fukunaga, Reiko Mizutani, Masakazu Sono, and Motoo Tori*

*Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan


Dienes with acrylate moiety have been subjected to olefin metathesis reactions using (PCy3)2Cl2Ru=CHPh (1) and (PCy3)Cl2[H2imid(Mes)2]Ru=CHPh (2). 5- to 7-Membered α,β-unsaturated lactones were obtained in good yields. Formation of 14-membered compounds was attempted using different substrates.