Pd3-type clusters generated from Pd(OAc)2/nPPh3, formed via a dinuclear Pd(i) species, exhibit high activity in Suzuki–Miyaura cross-coupling.

Chiral cyclobuteneamides made easy: Double chloride abstraction from the ruthenium/PNNP complex 1 in the presence of unsaturated β‐keto esters 2 gives the dicationic adducts [Ru(2)(PNNP)]2+ (3) that catalyze the [2+2] cycloaddition of a variety of ynamides 4 to produce cyclobuteneamides 5 with high yield and enantioselectivity (see scheme).