Unusual behavior of 2- and 4-vinyl pyridines in polymerization processes initiated by tris-π allyl chromium

In contrast to the data related to the BuLi-vinyl pyridine systems, 4-vinyl pyridine is distinguished by much greater activity as compared with 2-vinyl pyridine in the polymerization induced by tris-π-allyl chronium. The experimental results illustrating this difference are considered using the quantum chemical approach.