Technical Notes:

1. Copper- catalyzed coupling of imidazoles and pyrazoles with 1, 1 - dibromo-1-alkenes: a distinct approach for direct N-alkynylation of heteroarenes.

2.Synthesis of benzoindoloquinolizines via a Cu(l)-mediated C-N bond formation.

3.Efficient synthesis of 1,4-disubstituted triazolyl N-c arboxamides via a simple and convenient MCR using basic alumina as a solid support.

4. Cu(I) complexes with diethoxyphosphoryl-1, 10-phenanthrolines in catalysis of C-C and c- heteroatom bond formation.