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Scientific article
English

Microwave‐Assisted Synthesis and Transformations of Cationic CpRu(II)(naphthalene) and CpRu(II)(naphthoquinone) Complexes

Published inHelvetica Chimica Acta, vol. 102, no. 5, e1900076
Publication date2019
Abstract

Details of the direct synthesis of cationic Ru(II)(η5‐Cp)(η6‐arene) complexes from ruthenocene using microwave heating are reported. Developed for the important catalyst precursor [Ru(II)(η5‐Cp)(η6‐1‐4,4a,8a‐naphthalene)][PF6] reaction time could be shortened from three days to 15 min. The method was extended to [Ru(II)(η6‐benzene)(η5‐Cp)][PF6], [Ru(II)(η5‐Cp)(η6‐toluene)][PF6], [Ru(II)(η5‐Cp)(η6‐mesitylene)][PF6], [Ru(II)(η5‐Cp)(η6‐hexamethylbenzene)][PF6], [Ru(II)(η5Cp)(η6‐indane)][PF6], [Ru(II)(η5‐Cp)(η6‐2,6‐dimethylnaphthalene)][PF6], and [Ru(II)(η5‐Cp)(η6‐pyrene)][PF6]. 1‐methylnaphthalene and 2,3‐dimethylnaphthalene afforded mixtures of regioisomeric complexes. [Ru(Cp)(CH3CN)3][PF6], derived from the naphthalene precursor provided access to the cationic RuCp complexes of naphthoquinone, tetralindione, 1,4‐dihydroxynaphthalene, and 1,4‐dimethoxynaphthalene. Reduction of the tetralindione complex afforded selectively the endo,endo diol derivative. X‐Ray structures of five complexes are reported.

Keywords
  • Ruthenium
  • Microwave chemistry
  • Naphthoquinones
  • Tetralindiones
  • Naphthalene
Citation (ISO format)
BOCEKOVA, Eva et al. Microwave‐Assisted Synthesis and Transformations of Cationic CpRu(II)(naphthalene) and CpRu(II)(naphthoquinone) Complexes. In: Helvetica Chimica Acta, 2019, vol. 102, n° 5, p. e1900076. doi: 10.1002/hlca.201900076
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ISSN of the journal0018-019X
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Technical informations

Creation05/17/2019 10:48:00 AM
First validation05/17/2019 10:48:00 AM
Update time03/15/2023 4:31:27 PM
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