Synthesis and properties of novel organozinc enolates of N,N-disubstituted glycine esters. Molecular structure of [cyclic] [EtZnOC(OMe):C(H)N(tert-Bu)Me]4

Synthesis, characterization, and steric hindrance comparisons of selected transition and main group metal β-ketoiminato complexes

“…Examination of the bond lengths and angles in 6 suggests delocalization of the negative charge over the ligand backbone. The Zn-O bonds are within normal values 2.028(5)-2.076(6) Å [23], and correspond to dative bonds [24,25]. The Zn-N bonds vary from 2.19(2)-2.…”

Structural Organozinc Chemistry

“…It is notable that the Cp groups in the organozinc moieties are η 3 -bonded to zinc. (257) (Figure 115) do not belong to the class of organozinc compounds containing a zinc-transition metal bond. However, they are interesting compounds in that they contain both a bridging aryl group and a bridging alkylidyne fragment between a zinc atom and a tantalum atom.…”

Palladium-catalyzed α-arylation of N-protected 2-piperidinones

“…Moreover, in the case of HMDS, a considerable amount of the zinc enolate H can be protonated to form 3 (through proton transfer of the amine to the a-carbon atom of the enolate, complex I) and a new complex J. 11 The reactivity of I and J in the coupling reaction could be lower than the reactivity of the starting complex H.…”