The aza-Michael addition of 1,2,3,6-tetrahydrophthalimide with symmetrical fumaric esters has been performed efficiently in a solvent-free system at 100 °C and using 1,4-diazabicyclo[2.2.2]octane (DABCO) as a base in the presence of tetrabutylammonium bromide (TBAB). The products were obtained in good to high yields within 2.5-7.0 h. This reaction worked well on linear alkyl fumarates and was n...

In the structure of the binuclear title compound, [Cd2(C6H13N2)2Cl6], two Cd(II) atoms are bridged by two Cl(-) ligands, defining a centrosymmetric Cd2Cl2 motif. Each metal cation is additionally coordinated by two Cl(-) ligands and the N atom of a protonated 1,4-di-aza-bicyclo-[2.2.2]octane (H-DABCO)(+) ligand, leading to an overall trigonal-bipyramidal coordination environment with one of the...

An efficient synthesis of pyrazoles from tosylhydrazones and nitroalkenes was developed. In comparison with the previously reported 1,3-dipolar cycloaddition reaction of diazo compounds with electron-deficient alkenes or alkynes, this methodology proceeded with a sequential Baylis-Hillman/intramolecular cyclization mechanism and a variety of reversed regioselectivity products were prepared in g...

The attainment of transition-metal catalysis and photoredox has represented a great challenge over the last years. Herein, we have been able to merge both catalytic processes into what called “the light-triggered CuAAC reaction”. Particularly, reaction reveals opposite outcomes depending on nature photocatalyst (eosin Y disodium salt riboflavin tetraacetate) additives (DABCO, Et3N, NaN3) employ...

Hybrid bismuth-containing halides are emerging as alternative candidates to lead-containing perovskites for light-harvesting applications, Bi3+ is isoelectronic with Pb2+ and the presence of an active lone pair electrons expected result in outstanding charge-carrier transport properties. Here, we report a family one binary three ternary iodobismuthates containing 1,4-diazabicyclo[2.2.2]octane (...