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Propargylamino and allylamino derivatives of cyclohexene and norbornene were subjected to tandem metathesis reactions with first and second generation Grubbs' catalysts 1 and 2. Results show that the method is compatible with suitably protected nitrogen-containing compounds. Cyclohexenes gave intriguing results in terms of the possibility to perform ring rearrangement metathesis (RRM) reactions, showing...
Norbornene derivatives bearing endo-substituents in the 5- and 6-positions were studied as substrates for ene–yne metathesis cascades. Substrates which contained an internal alkyne and a terminal alkene or alkyne in each sidechain were found to undergo a metathesis cascade leading to pentacyclic bis-dienes and bis-trienes. Attempts to extend the chemistry further to sidechains containing two internal...
[Ru(CHPh)(PCy3)2Cl2] is shown to initiate the living ring opening metathesis polymerisation of amino-acid and -ester functionalised norbornenes; treatment of the living polymers with molecular oxygen gives rise to a highly selective chain-end functionalisation reaction.
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