The reaction of 1-benzoyl-6-hydroxy-6-
phenylfulvene with thallous ethoxide results in the formationof [Tl{1,2-C
5H
3(COPh)
2}]. Subsequent reaction with[Ru(
3-Cl)(C
p*)]
4 gives [Ru{
5-1,2-C
5H
3(COPh)
2}(C
p*)](
3, 79%). Treatment of
3 with hydrazine monohydrateresults in the formation of the
pyridazine
[Ru{
5-1,2-C5H3(CPh)2N2}(Cp*)] (
6, 73%). The structures of
3 and6 have been determined by X-ray crystallogra
phy.