The indole ring system is present in many natural products, pharmaceuticals,
agrochemicals, and other compounds of importance. 1–8 The indole unit forms the basis for …

A simple and highly efficient approach to the synthesis of bis (naphthol) methane (BNM) and
bis (indolyl) methane (BIM) derivatives has been developed. In the presence of 1, 4 …

Efficient ring-opening of various epoxides with hydrogen peroxide, catalyzed by antimony
trichloride/SiO 2, afforded the corresponding β-hydroperoxy alcohols in good to excellent …

In the present study, we have worked out a convenient route for the synthesis of new series
of novel 3-acetyl-2H-selenopyrano [2, 3-b] quinolin-2-ones (4a-f) by the cyclization of 3 …

Silica phenyl sulfonic acid (SPSA) was prepared and effectively used in the one‐pot
synthesis of 2‐aryl‐1‐arylmethyl‐1H‐1, 3‐benzimidazoles from o‐phenylenediamine with …

Trichloroisocyanuric acid is found to be an efficient catalyst for the electrophilic substitution
reaction of indole with aldehydes/ketones to afford the corresponding bis‐indolyl, tris …

Abstract A Series of hybrid 3-(5-mercapto-1, 3, 4-oxadiazol-2-yl)-2H-selenopyrano [2, 3-b]
quinolin-2-one derivatives (3a-f) were synthesized by the reaction of 2-oxo-2H …

This work presents a highly efficient and simple method for the synthesis of
bisindolylmethanes, catalyzed by AgBF4, with excellent yields. Various substituted …

Antimony trichloride absorbed on silica gel (SbCl 3/SiO 2) efficiently catalyses the four-
component cyclocondensation of 1, 2-diketone, aldehyde, ammonium acetate, and primary …

A convenient and efficient procedure has been developed for the synthesis of 3-aminoprop-
2-en-1-ones and 3-aminoprop-2-enoates catalyzed by silica-supported antimony (III) …