12-14 September, 2011, Lucknow - Earth Science India

National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’
12-14 September, 2011, Lucknow
Green chemistry is placed in the frontier areas of research and has been focused
for considerable recent research. Green chemistry, the design of chemical products and
processes that reduce or eliminate the use and generation of hazardous substances is an
overarching approach that is applicable to all aspects of chemistry. From feedstock’s to
solvents, synthesis and processing green chemistry actively seeks ways to produce
materials in a way that is more benign to human health and the environment. The
current emphasis on green chemistry reflects a shift away from the historic command
and control approach to environmental problems that mandated waste treatment, control
and clean up through regulation and towards preventing pollution at its source rather
than accepting pollution at its source. Green chemistry seeks new technologies that are
cleaner and economically competitive.
All synthetic processes involve the use of different solvents which inevitably lead
to environmental damage, through pollution, risks to human health and to resource
depletion, we need to develop and apply more environmentally friendly approaches.
Green chemistry involves design and redesign of chemical synthesis and chemical
products to prevent pollution and thereby solve environmental problems. Clearly there
will be a continuing need for the definition of novel reaction routes to both
multifunctional scaffolds for lead generation and to unique drug like heterocyclic
structures microwave irradiation has proved to be a powerful tool for both speeding up
chemical optimizations and for efficient preparation of new target compounds.
So, all traditional and old synthetic routes are more or less “Grey” in their
working and obviously give adverse effects to the mankind and all living beings. Green
chemistry provides “Green” paths for different synthetic routes using non-hazardous
solvents and environmental friendly chemicals.
The fundamentally attractive concept of green chemistry is solvent free reactions.
Solvent free reactions can be accelerated by microwave activation and this combined
clean technology approach to "greening" chemical reactions.
The major aim of this article is to provide / discuses the emerging trends in
environment management and evolve sustainable management strategies to solve the
burning environmental problems.
Microwave enhanced synthesis has attracted substantial attention in recent years,
enabling many organic reactions to proceed much faster and with higher yields than,
when conventional heating is employed. Microwave irradiation has become a powerful
synthetic tool for rapid synthesis of a variety of organic compounds. Microwave
assisted reactions have attracted much interest because of the simplicity in operation,
milder reaction conditions, increasing reaction rates and formation of cleaner products.
Microwave synthesis is one of them, which involves modified engineering,
practices, bioremediation, eco-friendly reaction media and concept of atom economy
leading to almost zero waste. It clearly differentiates the grey synthetic processes with
that of green natural processes having strategic objectives with social and
environmental benefits.
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