Citation: A. Rykowski et al., 1,2,4-triazines in organic synthesis. Part 11 - A novel one-pot synthesis of annulated 2,2 '-bipyridine ligands by inverse electron demand Diels-Alder reaction of 5,5 '-bi-1,2,4-triazines, TETRAHEDR L, 41(19), 2000, pp. 3657-3659