A new paradigm for the synthesis of 4′-pyridyl terpyridines using poly(ethyleneglycol) (PEG) as a benign reaction medium is described, with the compounds readily accessible in high purity in ca. 4 hours using a ‘one pot’ procedure. This method requires no product purification and affords the desired compounds in reasonable yield without the formation of unwanted side products.
C. B. Smith, C. L. Raston and A. N. Sobolev, Green Chem., 2005, 7, 650 DOI: 10.1039/B507581P
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