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Communication | Special issue | Vol 42, No. 2, 1996, pp.537-542
Published online, 1st January, 1970
DOI: 10.3987/COM-95-S94
Dirhodium(II) Tetrakis[3(S)-phthalimido-2-piperidinonate]: A Novel Dirhodium(II) Carboxamidate Catalyst for Asymmetric Cyclopropanation

Nobuhide Watanabe, Hideo Matsuda, Harumi Kuribayashi, and Shun-ichi Hashimoto

*Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan

Abstract

Dirhodium(II) tetrakis[3(S)-phthalimido-2-piperidinonate] catalyzes cyclopropanation of α-methylstyrene with d-menthyl diazoacetate to give d-menthyl menthyl (1S,2S)-2-methyl-2-phenylcyclopropanecarboxylate 90% de.