Abstract

This chapter discusses the synthesis of styrenes and derivatives substituted in the side chain. The preparation of styrenes substituted in the aryl nucleus, spectrometry and spectroscopy of styrenes and related compounds, isomerization and reactions, such as rearrangement reactions, oxidation, addition and intramolecular cyclization reactions is described. Several naturally occurring styrenes and aralkenes are also presented. The chapter discusses the preparative methods, natural occurrence, and enzymic reactions of aralkenols and related structures. The aralkenones and chalcones are an important class of compounds and undergo reactions, such as oxidation, dimerization, and alkylation. The kinetics of the bromination of cinnamic acid, its sodium salt and its methyl ester have been studied in 75% aqueous acetic acid in the presence of sodium bromide, sodium acetate and sodium perchlorate. The Mexican plant Coreopsis parvifolia Blake contains a known cinnamate ester. The Piper genus continues to attract the attention of phytochemists and a number of amides, the base moiety of which is normally pyrrolidine or piperidine, are known. Piper trichostachyon , for example, metabolizes trichostachine. The chapter also discusses the synthesis and reactions of the aralkdienes, aralkpolyenoic acids and esters, aralkynes, aralkynones, and aralkynoic acids and esters.

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