Palladium chloride–cryptand-22 complex: an efficient catalyst for the copper-, phosphorus-, and solvent-free synthesis of ynones

Bis-Dithiocarbamates derived from 1,10-diaza-18-crown-6 as ligand tectons for 1D, 2D and 3D supramolecular structure arrangements

The reaction of 1,10-diaza-18-crown-6 with CS₂ in the presence of a base (MOH or Et₃N) generates bis-dithiocarbamate salts with a 1D, 2D or 3D supramolecular solid-state structure based on M–O–M and M–S–M bridging and/or O/N–H⋯O/S hydrogen bonding.

Synthesis of ynones at room temperature catalyzed by copper chloride cryptand complex under solvent free conditions

An air-stable highly efficient reusable CuCl2-cryptand-[2.2.Benzo] catalyst is reported first time for coupling reaction of terminal alkynes with different acyl chlorides in the presence of triethylamine acting both as base and solvent at room temperature to give the corresponding ynones. Easy-going, short reaction time, cost-effective, palladium-, phosphorus- and solvent-free, high yield and recyclability up to 5th times make this method green procedure for ynones' synthesis with wide substrate variety.

Structural and conformational changes in [M(1,10-diaza-18-crown-6)Cl2] (M = Pd, Pb) complexes: a crystallographic and theoretical study

The appropriate selection of a given solvent/solvent system influences directly the molecular conformational structures of MLX₂ complexes.

A new class of pyrenyl solid-state emitters: 1-pyrenyl ynones. Synthesis via the Friedel–Crafts route, molecular and electronic structure and photophysical properties

Friedel-Crafts acylation of pyrene with alkynoic acids in the presence of trifluoroacetic anhydride and triflic acid constitutes a direct and efficient route to 1-pyrenyl ynones fluorescent in solution and in the solid state.