Synthesis of Some C2‐Symmetric Bidentate Ligands and Their Complexes Derived from Feist's Acid |
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| Authors: | Abdullah M. A. Al‐Majid Zeid A. Al‐Othman Mohammad Shahidul Islam |
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| Affiliation: | 1. Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia, (phone: +9661‐4675889;2. fax: +9661‐4675992) |
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| Abstract: | Various new C2‐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 C2‐symmetric bidentate ligands have the potential to be used in asymmetric catalysis. |
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| Keywords: | Bidentate ligands Feist's acid Titanium complexes |
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