Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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ADDITION OF LAPPERT STANNYLENE TO POLARIZED TRIPLE C≡N BONDS OF MONO-, BIS- AND TRICYANOBENZENES

Autoři: Brichová Kristýna | Růžičková Zdeňka | Růžička Aleš | Chlupatý Tomáš

Rok: 2016

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	ADDITION OF LAPPERT STANNYLENE TO POLARIZED TRIPLE C≡N BONDS OF MONO-, BIS- AND TRICYANOBENZENES	The chemistry of complex and organometallic compounds of main group elements underwent rapid development in the past two decades. This development and obviously a bright future of that field are interconnected to the employment of a high number of new electronically and/or sterically stabilizing ligands. A higher electron density NCN chelated compounds as for example amidinates and guanidinates[1] are the modern members. A new class of tin(II) N,N´-disubstituted amidinates prepared via an addition reaction of Lappert stannylene ([(Me3Si)2N]2Sn), with subsequent migration of trimethylsilyl fragment, to polarized triple C≡N bond(s) of cyanobenzene, 1,2-dicyanobenzene, 1,3-dicyanobenzene, 1,4-dicyanobenzene a 1,3,5-tricyanobenzene in various stoichiometric ratios and reaction conditions will be discussed. Moreover, selective thermodynamic versus kinetic reaction control depending on the time, temperature as well as concentration of starting compounds of an interaction of Lappert stannylene with the excess of cyanobenzene will be also demonstrated.	ADDITION; LAPPERT; STANNYLENE; POLARIZED; TRIPLE; C≡N; BONDS; MONO-; BIS-; AND; TRICYANOBENZENES