The title nitro-pyrrole-based compounds, C7H8N2O4, (I) (ethyl 4-nitro-1H-pyrrole-2-carboxyl-ate), its derivative C12H14N2O4, (II) [ethyl 4-nitro-1-(4-pent-yn-yl)-1H-pyrrole-2-carboxyl-ate], C15H26N4O3, (III) {N-[3-(di-methyamino)prop-yl]-1-isopentyl-4-nitro-1H-pyrrole-2-carboxamide}, and C20H27N9O5, (IV) {1-(3-azido-prop-yl)-4-(1-methyl-4-nitro-1H-pyrrole-2-carboxamido)-N-[2-(morpholin-4-yl)eth...

Pyrrole and pyrroldine heterocycles are ubiquitous structural features in natural products. Nature’s biosynthetic machinery often synthesizes the pyrrole functionality in these molecules from a saturated pyrrolidine as part of its metabolic degradation pathway. Interestingly, the chemical synthesis of substituted pyrroles is usually more straightforward in comparison to that of the correspondin...

PtCl2 effectively catalyzes the multistep reaction of N-methyl indole (1 a) with pent-3-yn-1-ol (2 a) in THF at room temperature for 2 h to give indole derivative 3 a, which contains a five-membered cyclic ether group at C3 in 93% yield. Under similar reaction conditions, various substituted N-methyl indoles 1 b-h and indole (1 i) reacted efficiently with 2 a to afford the corresponding indole ...

      A series of N-substituted-2,4-thiazolidinedione derivatives (TZDs) were prepared via N-alkylation of 2,4-TZD at position 3 using substituted benzyl halides. Synthesized N-substituted-2,4-TZD was then substituted at position 5 with substituted aromatic aldehyde according to Knoevenagel condensation method. Structures of the compounds were elucidated using various spectral techniques viz. I...

N-Substituted imide-fused corannulenes can be generated from the corresponding tetramethylfluoranthenes. Syntheses, crystal structure and electronic properties are reported. The solid state structure of the pentafluorophenyl derivative shows nearly perfect π-stacking in a convex-concave fashion and is expected to possess useful electronic properties.

The reactions of the lithio-o-carborane Li2C2B10H10 with ClCH2CH2CH2Br were studied under various conditions. While the main product is the known exo-polyhedrally cyclized 1,2(1,3-propanediyl)-o-carborane (2), the expected 3-chloropropyl-substituted carborane products 1(ClCH2CH2CH2)C2B10H11 (3) and 1,2-(ClCH2CH2CH2)2C2B10H10 (4) can be obtained in a total yield of 22%. In the presence of CuCl, ...

Monosubstituted acyclic (E)-1,3-dienes undergo efficient hydrovinylation giving (Z)-3-alkylhexa-1,4-dienes upon treatment with catalytic amounts of bidentate phosphine-CoCl(2) complexes {[P~P](CoCl(2))} and Me(3)Al in an atmosphere of ethylene. The regioselectivity of the reaction (i.e., 1,4- or 1,2-addition) depends on the nature of the ligand and temperature at which the reaction is carried o...

1- and 1,5-Aminoalkylamine substituted anthraquinones (AAQs, 1C3 1,5C3) were peptide coupled to 1-, 2-, 3-pyrrole lexitropsins generate compounds that incorporated both DNA minor groove intercalating moieties. The corresponding platinum(II) amidine complexes synthesized through a synthetically facile amine-to-platinum mediated nitrile ‘Click’ reaction. precursors as well the biologically evalua...