Precise Organic Synthesis Using Organic Superbase

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Selective transformations were developed using phosphazene bases and the reactions were further optimized toward phosphazene catalyzed reactions. First, deprotonation of aromatic ring proton was achieved using phosphazene P4 base and also arylsilanes were activated by the catalytic use of the P4 base. Organozinc compounds were found to be activated by phosphazene base and the halogen-zinc exchange reaction of functionalized aryl halides was successfully accomplished in the presence of P4 catalyst.