110978-36-4Relevant articles and documents
Metallation of Aliphatic Carbon Atoms. IV. Syntheses and Characterization of the Cyclopalladated Complexes of 2-t-Butylbenzothiazole
Hiraki, Katsuma,Fuchita, Yoshio,Nakashima, Motoharu,Hiraki, Hirofumi
, p. 3073 - 3078 (1986)
2-t-Butylbenzothiazole reacts with palladium(II) acetate in acetic acid to produce the cyclopalladated dimer (2) (C7H4NS=2-benzothiazolyl).Complex 2 shows temperature-dependent 1H NMR spectra, which have been interpreted on the basis of the inversion motion of the acetato bridges.Metathesis of 2 with lithium chloride and sodium iodide result in the formation of the chloro- and iodo-bridged analogues, (3) and (4), respectively, each of which is found to be composed of cis and trans isomers.The 1H NMR spectra of 3 and 4 depend on temperature and are ascribed to rapid exchange between the two isomers.Equimolar amounts of 3 and 4 afford a μ-chloro-μ-iodo binuclear complex, .The reaction of 3 with thallium(I) acetylacetonate produces a mononuclear cyclopalladated complex .Complexes 2 and 3 react with CO in methanol to give MeO2CCH2CMe2-C7H4NS, the formation of which comfirms also the cyclopalladated structure of 2-t-butylbenzothiazole in 2 and 3.