Thiosemicarbazones are formed by the condensation of an aldehyde or ketone with a thiosemicarbazide. They have high coordinative capacity given that they have several potential donor atoms through which they can bind to transition metals. This coordinative capacity can be increased if the R1 and R2 substituents include additional donor atoms. In addition, thiosemicarbazones as well as their semicarbazones analogues have considerable biological and pharmacological interest because of their antibacterial, antiviral and antitumor activity [1-2].

This communication includes the preparation and characterization of a series of thiosemicarcarbazones and their applications in the synthesis of palladium organometallic compounds [3-4].

Acknowledgments

We wish to thank the financial support received from the Xunta de Galicia (Galicia, Spain) under the Grupos de Referencia Competitiva Programme Projects GRC2015/009.

References

[1] S. Cruz; S. Bernés; P. Sharma; R. Vazquez; G. Hernandez; R. Potillo; R. Gutierrez, Appl. Organomet. Chem., 2010, 24, 8.

[2] A. Garoufis; S. K. Hadjikakou; N. Hadjiliadis, Coord. Chem. Rev., 2009, 253, 1384.

[3] P. Kalaivani; R. Prabhakaran; F. Dallemer; P. Poornima; E. Vaishnavi; E. Ramachandran; V. V. Padma; R. Renganathan; K. Natarajan, Metallomics, 2012, 4, 101.

[4] E. Budzisz; R. Bobka; A. Hauss; J. N. Roedel; S. Wirth; I. P. Lorenz; B. Rozalska; M. Wieckowska-Szakiel; U. Krajewska; M. Rozalski, Dalton Transactions, 2012, 41, 5925.