Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
Synthesis of a huge number of 4,4`-bipyrazole derivatives was achieved
employing various synthetic platforms. This chapter outlines all possible routes (such
as cyclocondensation, 1,3-dipolar cycloaddition and dimerization reactions) towards
the construction of the 4,4`-bipyrazole heterocycles.
Keywords:
1, 3-dipolar cycloaddition, 4, 4`-bipyrazoles, Cross-coupling, Cyclocondensation, Hydrazonoyl halides.
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Authors:Bentham Science Books