ChemInform Abstract: Asymmetric Reactions Catalyzed by Chiral Metal Complexes. Part 77. Synthesis of an Axially Dissymmetric Biphenylcarboxylate Ligand, BDME, and Asymmetric Cyclopropanation of Olefins with Diazoacetate Catalyzed by Its Dirhodium(II) Complex.

✍ Scribed by H. ISHITANI; K. ACHIWA

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 30 KB
• Volume: 28
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199746053

✦ Synopsis

Asymmetric Reactions Catalyzed by Chiral Metal Complexes. Part 77.

Synthesis of an Axially Dissymmetric Biphenylcarboxylate Ligand, BDME, and Asymmetric Cyclopropanation of Olefins with Diazoacetate Catalyzed by Its Dirhodium(II) Complex.

-The dirhodium complex of title ligand (R)-BDME serves as catalyst for the asymmetric cyclopropanation of styrene with diazoacetates. The stereoselectivities are similar to the Rh2((S)-MEPY)4-catalyzed cyclopropanation; however, in general higher yields are obtained. -(ISHITANI, H.;