Evolution of functional cyclohexadiene-based synthetic reagents: The importance of becoming aromatic

Article Abstract:

Suites of new precursor designed around a cyclohexadiene core were prepared for mediating clean radical chain syntheses. It was observed that functionalized cyclohexa-2.5-dienes readily donated H-atoms and there was rapid extradition of functional group as a free radical by cyclohexadienyl radicals.

Germany, Cyclic crudes and intermediates, Cyclohexane, Properties, Structure, Chemical properties

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Cationic cyclopentannelation of allene ethers

Article Abstract:

This article describes Nazarov cyclization reactions which utilize allenyl ethers to form cyclopentenones. The reaction involves obtaining a precursor from an electrophile and allene for the pentadienyl cation.

Alicyclic Chemicals, Organic compound synthesis, Alicyclic compounds

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Homolytic cleavage and aggregation processesin Cyclopentadienylchronium chemistry

Article Abstract:

The reactivity of the cyclopentadienylchronium tricarbonyl dimer toward several classes of organo -P-, -S- and -N- compounds are described.

Pharmaceutical Preparation Manufacturing, Pharmaceutical preparations, Ophthalmic Drugs, Molecular structure, Ophthalmic agents, Chemical reactions

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