COBALT-PROMOTED ONE-POT REACTION OF ISOTHIOCYANATES TOWARD THE SYNTHESIS OF ARYL/ALKYLCYANAMIDES AND SUBSTITUTED TETRAZOLES

Authors

  • Mohan Seelam Department of Chemistry, Bapatla Engineering College, Bapatla, Andhra Pradesh 522101
  • Prasada Rao Kammela Department of Chemistry, Bapatla Engineering College, Bapatla, Andhra Pradesh 522101
  • Bajivali Shaikh Department of Chemistry, Gudlavalleru Engineering College, Gudlavalleru, Andhra Pradesh 521356
  • Ramana Tamminana Department of Chemistry, GITAM University, Bengaluru campus, NH-207, Doddaballapur Taluk, Bengaluru District, Karnataka 561203
  • Sujatha Bogiri Department of Chemistry, Y. A. Govt Degree College for Women, Chirala, Andhra Pradesh 523155

DOI:

https://doi.org/10.1007/3982

Keywords:

cobalt catalyst, cyanamides, tetrazoles, desulfurization, tandem reaction

Abstract

The synthesis of cyanamides and tetrazoles from isothiocyanates through tandem reaction using cobalt catalyst has been demonstrated. In the case of tetrazole preparation, the reaction involved addition/desulfurization/nucleophilic addition/electrocyclization, whereas aromatic cyanamides were constructed from isothiocyanates through addition/desulfurization. Cheap cobalt sulfate was used for the synthesis of various cyanamides and tetrazoles. In addition, cobalt catalyst was found to be desulfurization reagent that has not been previously reported. The final products have been obtained from starting precursors in good to high yield.

Author Biography

Prasada Rao Kammela, Department of Chemistry, Bapatla Engineering College, Bapatla, Andhra Pradesh 522101

Department of Chemistry, Bapatla Engineering College, Bapatla, Guntur District, Andhra Pradesh, India-522 101

Published

2018-06-28

Issue

Section

Original Papers