Metal-mediated synthesis of medium-sized rings

Article Abstract:

Natural products with medium-sized ring subunits follow a general synthetic methodology involving metals. Methods for the metal-mediated synthesis of seven to nine-membered ring compounds via ring-closing metathesis, ring-expansion, cyclization, cycloaddition, and annulation reactions are described.

Metal catalysts, Ring formation (Chemistry), Cyclization (Chemistry), Palladium catalysts

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Synthesis of heterocyclic and carbocyclic compounds via alkynyl, allyl, and propargyl organometallics of cyclopentadienyl iron, molybdenum, and tungsten complexes

Article Abstract:

This review addresses the construction of carbocyclic and heterocyclic compounds using allyl, propargyl, and alkynyl complexes containing transition metals iron(II), molybdenum(II), and tungsten(II). These organometallic compounds are mild nucleophiles and form stable carboniums.

China, Statistical Data Included, Transition metals, Organometallic chemistry

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Chemistry and biology of salicylihalamide A and related compounds

Article Abstract:

The author reviews the publications on salicylihalamide A and related compounds. The topics include the analysis of the chemical synthesis and biological studies of these classes of natural products.

Biochemistry, Research and Development in the Physical, Engineering, and Life Sciences, Science & research, Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Salicylic Acid, Composition, Salicylic acids, Chemical synthesis, Amides, Properties, Chemical properties, Chemical compounds

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