Palladium(0)-Catalyzed Cyclization Reaction of Polymer-Supported Aryl Iodides with 1,2-Allenyl Carboxylic Acids. A Facile Solid-Phase Synthesis of Butenolides
Organic Letters2000Vol. 2(10), pp. 1419–1422
Citations Over TimeTop 10% of 2000 papers
Abstract
[reaction--see text] Aryl iodides anchored to Merrifield resin via the linkages between a carboxyl, hydroxyl, or hydroxymethyl group and the benzylic chloride moiety in the resin reacted efficiently with 1,2-allenic carboxylic acids under the catalysis of Pd(0) to afford polymer-supported butenolides. Polysubstituted butenolides can be easily cleaved from the resins by Lewis acid-catalyzed processes in good yields and purities.
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