Publikace detail

N,C,N-CHELATED STIBINIDENES: DIFFERENCES IN THE REACTIVITY WITH UNSATURATED SYSTEMS AND CHALCOGENS

Autoři: Zechovský Jan | Růžička Aleš | Dostál Libor

Rok: 2021

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	N,C,N-CHELATED STIBINIDENES: DIFFERENCES IN THE REACTIVITY WITH UNSATURATED SYSTEMS AND CHALCOGENS	Stibinidenes belong to a family of so-called pnictinidenes, i.e. compounds containing the respective pnictogen atom (P, As, Sb or Bi) in the formal oxidation state of +I. Mentioned elements in this oxidation state are extremely easily oxidized, so they were not available for many years. However, with the discovery of the coordinating properties of NCN chelating ligands (so-called pincer ligands), their isolation was finally achieved.1 Their chemical behaviour can be easily tuned by quite simple modification of the ligand’s backbones, which predestines them to exhibit an interesting reactivity ranging from small molecules activation to their utilization in catalysis.2 Recently, various types of stibinidenes were reported depending on the reduction agent used (Figure 1).3 The utilization of bulky borohydride for the reduction caused the saturation of one of the C=N bond with concomitant reduction of antimony centre, which plays a significant role in changing its chemical behaviour. Reactivity of both stibinidenes compounds with substituted alkynes and chalcogens will be presented.	Stibinidenes; Tautomerization; Activation of mutliple bonds; Chalcogens

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