A synergetic tert-butyl hydroperoxide/K3PO4-promoted oxidative cyclization has been
developed for the facile synthesis of various functionalized quinazolin-4 (3 H)-ones from …

Visible‐light‐induced mild, transition metal, base, and photocatalyst‐free green protocol has
been developed for the synthesis of tryptanthrin and its derivatives. The present reaction is …

A novel phosphonium-mediated reaction of isatins is described. In the presence of alcohol,
the reaction proceeds to furnish C-12 modified tryptanthrin derivatives. Without alcohol, self …

A method for one‐pot synthesis of 6‐benzyl‐6‐hydroxyindolo [2, 1‐b] quinazolin‐12 (6H)‐
ones from isatins and potassium benzyl trifluoroborates was developed. Bioactive …

The chemical structure of quinazolinones includes benzene ring fused with 2-pyrimidinone
(1), 4-pyrimidinone (2) or 2, 4-pyrimidinedione (3) ring, and are named as quinazolin-2 (1H) …

The numerous bioactivities exhibited by tryptanthrins led chemists to develop synthetic
approaches towards this important scaffold. In particular, conversion of isatins into …

A procedure for the synthesis of dibenzo‐1, 7‐naphthyridine carboxylate by means of
photoredox catalysis has been developed. The reaction features an umpolung reaction of …

Based on a common structural core of 4, 5, 6, 7-tetrahydro [1, 2, 3] triazolo [1, 5-a] pyridine, a
number of bicyclic triazolium ionic liquids 1–3 were designed and successfully prepared. In …

Optical absorption (at room temperature), fluorescence (at room temperature and T= 78 K)
and phosphorescence (at T= 78 K) spectra of solution of the molecular complex based on …

The concomitant exploitation of two of the green chemistry tools viz., sonication and
biocatalysis is reported here for the synthesis of natural alkaloid, tryptanthrin (indolo [2, 1‐b] …