Nickelacyclopentane derivatives as intermediates in the nickel(0)-catalysed cyclodimerisation of strained-ring olefins

Abstract

The syntheses of the bipyridylnickelacyclopentane derivatives (9)–(11) and their displacement reactions with activated olefins, e.g. maleic anhydride or the strained-ring olefins (1)–(3), are reported.