2-Pyridylmetallocenes: Part 3 [1]. Cyclomercuration of 2-pyridyl-ferrocene and 1-(2-pyridyl)-2-methyl-ferrocene. Molecular structures of [1-(2-C5H4N)-2-(CH3)C5H3]Fe(C5H5), [1-(ClHg)-2-(2-C5H4N)C5H3]Fe(C5H5) and [1-(ClHg)-2-(2-C5H4N)-3-(CH3)C5H2]Fe(C5H5)
摘要:
Mercuration of 2-pyridylferrocene [(2-C5H4N)C5H4]Fe(C5H5) (1a) and its 2-methylated derivative 1b with Hg(OAc)(2) followed by treatment with LiCl gave after chromatographic workup the cyclomercurated and [1-(ClHg)-2-(2-C5H4N)-3-(R)C5H2]Fe(C5H5) (R = H: 2a: Me: 2b)) in 43% and 21% yield. The molecular structures of 1b, 2a and 2b have been determined by X-ray crystallography. (C) 2012 Elsevier Ltd. All rights reserved.