Synlett
DOI: 10.1055/s-0036-1590921
letter
© Georg Thieme Verlag Stuttgart · New York

Synthesis of 6-Thiocyanatophenanthridines by Visible-Light- and Air-Promoted Radical Thiocyanation of 2-Isocyanobiphenyls

Manjula Singha, Arvind K. Yadavb, Lal Dhar S. Yadav*b, R. K. P. Singh*a
  • aGreen Synthesis Electrochemical Laboratory, Department of Chemistry, University of Allahabad, Allahabad 211002, India
  • bGreen Synthesis Laboratory, Department of Chemistry, University of Allahabad, Allahabad 211002, India   Email: ldsyadav@hotmail.com
Further Information

Publication History

Received: 08 August 2017

Accepted after revision: 07 September 2017

Publication Date:
26 September 2017 (eFirst)

Abstract

A convenient, efficient, and metal-free synthesis of 6-thiocyanatophenanthridines by visible-light- and air-mediated, eosin Y-catalyzed, sequential radical cyclization and aromatization of 2-isocyanobiphenyls with ammonium thiocyanate is reported. Advantageously, the protocol utilizes inexpensive, clean, and sustainable natural resources such as visible light and atmospheric oxygen at room temperature in a one-pot procedure.

Supporting Information