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Gopalpur Nagendrappa teaches organic chemistry at Bangalore University. His work includes organic synthesis and reaction mechanisms mainly in the area of organosilicon chemistry. Presently he is also working on organic synthesis under solventfree conditions and using clay-catalyses.

His main area of research is organosilicon chemistry with particular attention to developing new synthetic procedures and reagents, and studying the reaction mechanisms.

Esterification of dicarboxylic acids with various alcohols and phenols in presence of metal exchanged montmorillonite clay catalyst (M n+ -mont; M nþ ¼ Al 3þ , Fe 3+ , Cr 3+ , Zn 2+ , Mn 2+ , and Ni 2+ ) is studied. Among the catalysts used, Al 3+ -mont was found to be the most effective, as it gave good to excellent yields of esters under mild reaction conditions. The heterogeneous catalyst presented here can be regenerated and reused. All these features indicate the high potential of the reaction as ''green chemistry'' process.

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