75046-63-8Relevant academic research and scientific papers
PREPARATION AND PROPERTIES OF TWO PENTACARBONYLTUNGSTEN COMPLEXES OF SUBSTITUTED CYCLOPROPENYLIDENES
Kawada, Y.,Jones, W. M.
, p. 87 - 92 (1980)
2,3-Diphenylcyclopropenylidene(pentacarbonyl)tungsten and 2,3-di-t-butylcyclopropenylidene(pentacarbonyl)tungsten have been prepared by the method of Oefele for comparison with cycloheptatrienylidene, diphenylcarbene and phenylmethoxycarbene complexes of pentacarbonyltungsten.Both the cycloheptatrienylidene and cyclopropenylidene complexes are poorer ?-acceptors than the other carbene complexes.Furthermore there is some evidence that cyclopropenylidene is a poorer acceptor than cycloheptatrienylidene although this is not conclusive.Both of the cyclopropenylidene complexes show greater thermal stability and lower chemical reactivity than the cycloheptatrienylidene complex.
