Scope and limitations of the Heck–Matsuda-coupling of phenol diazonium salts and styrenes: a protecting-group economic synthesis of phenolic stilbenes?
Organic & Biomolecular Chemistry Pub Date: 2013-04-09 DOI: 10.1039/C3OB40420J
Abstract
4-Phenol diazonium salts undergo Pd-catalyzed Heck reactions with various styrenes to 4′-hydroxy stilbenes. In almost all cases higher yields and fewer side products were observed, compared to the analogous 4-methoxy benzene diazonium salts. In contrast, the reaction fails completely with 2- and 3-phenol diazonium salts. For these substitution patterns the methoxy-substituted derivatives are superior.
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Journal Name：Organic & Biomolecular Chemistry
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CAS no.: 89640-58-4
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