First X‐ray Structure of a  N ‐Naphthaloyl‐Tethered Chiral Dirhodium(II) Complex: Structural Basis for Tether Substitution Improving Asymmetric Control in Olefin Cyclopropanation | Zendy

Ghanem Ashraf | Zendy; Gardiner Michael G. | Zendy; Williamson Rachel M. | Zendy; Müller Paul | Zendy

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First X‐ray Structure of a N ‐Naphthaloyl‐Tethered Chiral Dirhodium(II) Complex: Structural Basis for Tether Substitution Improving Asymmetric Control in Olefin Cyclopropanation

Author(s) -

Ghanem Ashraf,

Gardiner Michael G.,

Williamson Rachel M.,

Müller Paul

Publication year - 2010

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.200903231

Subject(s) - cyclopropanation , olefin fiber , substitution (logic) , catalysis , stereochemistry , chemistry , crystallography , computer science , organic chemistry , programming language

Good‐ ee ! The first one‐pot olefin cyclopropanation that gives high ee is reported. The optimized catalyst is the 4‐Br‐substituted chiral paddle‐wheel tetracarboxylatodirhodium(II) complex based on N ‐naphthaloyl‐( S )‐ tert ‐leucinate. X‐ray structural analysis of the parent catalyst reveals a square chiral crown cavity shrouding the axial coordination site (see figure).

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