Abstract

Abstract: Several thieno [2,3-h] /[3,2-h] quinolines and thieno [2,3-f] /[3,2-f] quinolines (TQs) are discussed in this review from a few perspectives, including various preparation and processing methods employing cutting-edge machinery. The preparation of (TQs), from 4-(5)aminobenzothiophene, 2(3)chloromethylthiophene, 2(3)thienylboric acid, and other chemical reagents is illustrated via a number of chemical procedures in this review. The formation of (TQs) was clarified using the Michael addition, Photocyclization, Skraup reaction, Ullmann-Fetvadjian process, Suzuki-Miyaura and Sonogashira reaction, aza-Diels-Alder reaction, and Friedel-Crafts reaction.

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