Microwave-Assisted Cascade Strategy for the Synthesis of Indolo[2,3-b]quinolines from 2-(Phenylethynyl)anilines and Aryl Isothiocynates.
The in situ generated o-alkynylthioureas obtain by reacting 2-(phenylethynyl)anilines and aryl isothiocynates undergo efficient cascade cyclization in the presence of Ag2CO3to form indoloquinolines under microwave heating. The present tandem process allows the generation of a variety of indolo[2,3-b]quinolines derivatives in good to moderate yields with a wide functional group tolerance.
Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati 781039, India.
Wajid
W
Ali
Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati 781039, India.
Anjali
A
Dahiya
Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati 781039, India.
Ramdhari
R
Pandey
Department of Chemistry, Aligarh Muslim University , Aligarh 202002, India.
Tipu
T
Alam
Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati 781039, India.
Bhisma K
0000-0002-4170-8166
BK
Patel