After setting out principles and practice, they cover the photogeneration of carbon-centered radicals, heteroatom-centered radicals, biradicals and radical pairs, radical ions, carbocations and carbanions
, and cargenes and nitrenes.
In a number of synthetic processes, acidic hydrogen from weak organic acids namely alpha hydrogen adjacent carbonyl group quite often removed by base to generate, carbanions
or nitride ion which can then be reacted further as a nucleophile to synthesize many industrially important intermediates & products.
This issue covers reactions of aldehydes and ketones and their derivatives; reactions of carboxylic, phosphoric and sulfonic acids and their derivatives; oxidation and reduction; carbenes and nitrenes; nucleophilic and electrophilic aromatic substitution; carbocations; nucleophilic aliphatic substitution; carbanions
and electrophilic aliphatic substitution; elimination reaction; addition reactions (polar addition and cycloaddition); and molecular rearrangements.
In particular, and because of our ongoing studies on carbanionic species [12-14], we are interested in the stability of the carbanions
derived from adamantane (Fig.
In conjunction with butadiene monomer, such an organolithium based system produces allylic carbanions
that are unique in terms of their structure, reactivity and solvency.