Metathesis cleavage of an NN bond in benzo[c]cinnolines and azobenzenes by triply-bonded ditungsten complexes?
Chemical Communications Pub Date: 2018-02-08 DOI: 10.1039/C7CC08570B
Abstract
A metathesis reaction of a W![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
W bond and an N![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
N bond was observed by reacting a W–W triply-bonded W(III)2 complex, (tBuO)3WW(OtBu)3 (1), with benzo[c]cinnoline derivatives to form biphenyl-linked dinuclear (imido)tungsten complexes 2–4. When azobenzene was used as the substrate, a trans to cis isomerization induced by blue-LED light was essential prior to the metathesis cleavage of the NN bond by the WW bond of (Me2N)2(TfO)WW(OTf)(NMe2)2 (6), affording the corresponding imido-bridged dinuclear tungsten complexes 7–9.
![Graphical abstract: Metathesis cleavage of an N [[double bond, length as m-dash]] N bond in benzo[c]cinnolines and azobenzenes by triply-bonded ditungsten complexes](http://scimg.chem960.com/usr/1/C7CC08570B.jpg)
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Journal Name：Chemical Communications
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