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Synthesis and structure of the ferrocenylboron-capped clathrochelate iron(ii) oximehydrazonates |
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| Authors: | Y Z Voloshin I S Makarov A V Vologzhanina E V Polshin Yu B Monakov R M Islamova Yu N Bubnov |
| Institution: | 1. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991, Moscow, Russian Federation 2. L. Ya. Karpov Institute of Physical Chemistry, 10 ul. Vorontsovo Pole, 105064, Moscow, Russian Federation 3. Institute of Metal Physics, National Academy of Sciences of Ukraine, 36 bulv. Vernadskogo, 03680, Kiev, Ukraine 4. Institute of Organic Chemistry, Ufa Scientific Center, Russian Academy of Sciences, 71 prosp. Oktyabrya, 450054, Ufa, Russian Federation |
| Abstract: | The direct template macrocyclization of 2,3-butanedione monooxime hydrazone (HDXO) with ferrocenylboronic acid on the iron(ii) ion matrix afforded the ferrocenylboron-capped semiclathrochelate iron(ii) oximehydrazonate. The H+ ion-catalyzed macrocyclization of this precursor with an excess of triethyl orthoformate gave the clathrochelate complex with syn,syn,syn-orientation of the ethoxy substituents relative to the 1,3,5-triazacyclohexane ring. The complexes synthesized were characterized using elemental analysis, IR and UV—Vis spectroscopies, MALDI-TOF mass spectrometry, 1H and 13C{1H} NMR, 57Fe Mössbauer spectroscopies, and X-ray diffraction analysis. |
| Keywords: | clathrochelates ii)" target="_blank">iron(ii) ferrocene and its derivatives macrocyclic compounds X-ray diffraction analysis |
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