✦ LIBER ✦

Synthesis of Some C2-Symmetric Bidentate Ligands and Their Complexes Derived from Feist's Acid

✍ Scribed by Abdullah M. A. Al-Majid; Zeid A. Al-Othman; Mohammad Shahidul Islam

Publisher: John Wiley and Sons
Year: 2012
Tongue: German
Weight: 215 KB
Volume: 95
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.201100305

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✦ Synopsis

Abstract

Various new C~2~‐symmetric bidentate ligands, bearing phosphorus, nitrogen, and sulfur, were obtained in an efficient manner, starting from (±)‐trans‐3‐methylidenecyclopropane‐1,2‐dicarboxylic acid (Feist's acid; (±)‐trans‐3). The structures of the new bidentate ligands, di(__tert‐__butyl) (±)‐[(trans‐3‐methylidenecyclopropane‐1,2‐diyl)dimethanediyl]biscarbamate ((±)‐9), (±)‐(trans‐3‐methyldienecyclopropane‐1,2‐diyl)dimethanaminium dichloride ((±)‐10), (±)‐S,S′‐[(trans‐3‐methylidenecyclopropane‐1,2‐diyl)dimethanediyl] diethanethioate ((±)‐11), and (±)‐[(trans‐3‐methylidenecyclopropane‐1,2‐diyl)dimethanediyl]bis(diphenylphosphane) ((±)‐12), were fully characterized by standard spectroscopic techniques. These new classes of C~2~‐symmetric bidentate ligands have the potential to be used in asymmetric catalysis.

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