041: New precursors for quinoid heterocycles
042: New quinoline-containing derivatives of quinones
043: The Preparation of Thieno[2,3-b]pyridines from 3-Cyanopyridine-2(1H)-thione
044: A Novel Approach to the Pyrroloiminoquinone System
046: Strict Self-assembly of Tripodal Tris(azides) and Tris(phosphanes)
047: [1,2,4]Triazolidin-3-ones and -3-thiones with Functionalized 5-Substituents: Synthesis and Rearrangements
048: Electron Density Distribution in a Chiral Silatrane
049: The versatile reactivity of tetrazines with electron rich dienes
050: 1H and 13C NMR Study of Indoloquinolizines Obtained from Tryptamine and Acetylacetaldehyde.