Transition metal benzyne complex

Unlike benzyne itself, these complexes are less reactive although they undergo a number of insertion reactions.

This complex is prepared by treatment of Ta(η5-C5Me5)Me3Cl with phenyllithium.

It is produced by dehalogenation of the bromophenyl complex NiCl(C6H4Br-2)(dcpe) with sodium amalgam.

Benzyne complexes react with a variety of electrophiles, resulting in insertion into one M-C bond.

[5] Several benzyne complexes have been examined by X-ray crystallography.

Structure of Ru(C 6 H 4 )(PMe 3 ) 4 . [ 1 ]
Labeled carbon atoms corresponding to bonds with lengths given in table.
Labeled carbon atoms corresponding to bonds with lengths given in table.
Labeled bond angles that are given in table
Labeled bond angles that are given in table