The instant invention relates to new metathesis oligomers which are substituted with fluorinated groups. Also disclosed is a polymerisable composition comprising a catalytically effective amount of a penta- or hexavalent ruthenium or osmium carbene catalyst, the process for preparing the metathesis oligomers by applying the reaction conditions of Ring Opening Metathesis Polymerisation (ROMP) to the polymerisable composition. These new methathesis oligomers are useful for increasing the oil and water repellency of organic materials.
Pyrolysis reactions of nonafluorobiphenyl-4-yl prop-2-enyl ether: a remarkable rearrangement reaction of an intramolecular Diels–Alder product
作者:Andrei S. Batsanov、Gerald M. Brooke、Darren Holling、Alan M. Kenwright
DOI:10.1039/b001356k
日期:——
The title compound 16 on flash vapour pyrolysis (FVP) at 350 °C gives a complex mixture which includes 20, the product of one of the two possible intramolecular Diels–Alder reactions of the cyclohexa-2,4-dienone intermediate 17 formed via a Claisenrearrangement reaction. FVP of 16 at 420 °C gives the bicyclic compound 30, formed not from the other possible Diels–Alder adduct 27 but from an isomer
Pyrolysis reactions of 4-nonafluorobiphenyl prop-2-enyl ether: a remarkable rearrangement reaction
作者:Andrei S. Batsanov、Gerald M. Brooke、Darren Holling、Alan M. Kenwright
DOI:10.1039/a903209f
日期:——
The formation of the unexpected bicyclic compound 16 via the pyrolytic isomerisation of 4-nonafluorobiphenyl prop-2-enyl ether 8 can be rationalised by invoking the intermediacy of a rare retro-cyclisation reaction of the internal Diels–Alder adduct 12 (from the Claisen intermediate 9) to a tethered ketene 18, recyclisation via the alternative mode to 17 and its subsequent transformation.