D. Subhas Bose

TL;DR: This method provides an efficient and much improved modification of original Biginelli reaction reported in 1893, in terms of high yields, short reaction times, and simple work-up procedure, and it has the ability to tolerate a wide variety of substitutions in all three components, which is lacking in existing procedures.

TL;DR: Indium(III) chloride is used as an efficient catalyst in the von Pechmann condensation of phenols with β-ketoesters leading to the formation of coumarin derivatives in excellent yields with good purity as mentioned in this paper.

TL;DR: A new, mild, and efficient method has been developed for the synthesis of 2-substituted benzothiazoles via the intramolecular cyclization of thioformanilides by using hypervalent iodine reagents in CH2Cl2 at ambient temperature.

TL;DR: An efficient synthesis of a homologous series of C8-linked pyrrolobenzodiazepine dimers is reported; compounds with an odd number of methylenes in the linker show a higher affinity for DNA, enhanced cross-linking efficiency, and are more cytotoxic compared with compounds with either n= 4 or 6.

TL;DR: In this paper, a mild and efficient method was developed for the condensation of 2-aminoaryl ketones with α-methylene ketones in the presence of a catalytic amount of reusable catalyst CeCl 3 ·7H 2 O (25m) at ambient temperature to afford the corresponding poly-substituted quinolines in high yields under mild conditions.