The Negishi cross‐couplingreaction of an organozinc derivative prepared from protected l‐aspartic acid with monohalopyridines was improved by employing a combination catalyst of Pd2(dba)3 and P(2‐furyl)3 and removing an extra Zn from the organozinc reagent via centrifugation. The reactivity of halogenated pyridines (Cl, Br, I) with substituents at the C2, C3, and C4 positions of the pyridine ring