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Transition metal-catalyzed asymmetric vinylcyclopropane-cyclopentene rearrangements. Asymmetric synthesis of cyclopentane derivatives using chiral sulfoxides as chiral sources

โœ Scribed by Kunio Hiroi; Yoshihisa Arinaga


Publisher
Elsevier Science
Year
1994
Tongue
French
Weight
331 KB
Volume
35
Category
Article
ISSN
0040-4039

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Synthesis of novel planar chiral ferroce
โœ Jae Hoon Lee; Seung Uk Son; Young Keun Chung ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 243 KB

We have shown that cymantrene derivatives are better P,N-chelate ligands for palladium-catalyzed allylic alkylation than ferrocenes, which have a similar pentagonal ligand structure to cymantrene derivatives. In particular, the PPh 3 -substituted cymantrene gave a higher enantioselectivity (>98%).