Green twist to an old theme. An eco-friendly approach*
J. S. Yadav** and H. M. Meshram
Organic Division I, Indian Institute of Chemical Technology,
Hyderabad 500 007, India
Abstract: Owing to present environmental awareness, attempts
are being made toward the evolution of environmentally benign processes
using solid-supported reagents and microwave-assisted reactions. A newly
developed, nonmetallic oxidative reagent, "clayan", has been
exploited for various reactions such as deprotection, oxidation, oxidative
coupling, and nitration and bromination of activated and deactivated
arenes. In another green chemistry endeavor, reactions such as reduction
and cyclization have been successfully carried out in dry media under
microwave irradiation. The nonsolvent reaction, experimental simplicity,
and enhanced selectivity are the main attractive features of the approach.
* Lectures presented at the International Symposium
on Green Chemistry, Delhi, India, 10-13 January 2001. Other presentations
are published in this issue, pp. 77-203.
** Corresponding author: E-mail: [email protected];
Fax: (091)40 -7170512