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Welcome to ChemNews!
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Our September ChemNews showcases our brand NEW and innovative Reagents for Selective Metalation and Deprotonation, catalysts, and building blocks for Chemical Synthesis. In addition, we're featuring the latest literature for chemical synthesis available from Sigma-Aldrich, as well our latest product highlights — all easily accessed from one convenient location.
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Pd-Catalyzed Benzylation of Heteroarenes
Fagnou and coworkers reported a Pd-catalyzed benzylation reaction of a variety of aromatic heterocycles, including thiazoles, thiophenes, indolizines, imidazopyrimidines, triazoles, oxazoles, and furans. Traditional methods for this transformation involve either Friedel-Crafts alkylation (requires strong Lewis or Bronsted acids and invariably precludes use of electron-deficient substrates) or deprotonation and addition of an electrophile (in both methods protection of acid- and base-sensitive functionalities is necessary, respectively).
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