Multicomponent, Flow Diazotization/Mizoroki-Heck Coupling Protocol: Dispelling Myths about Working with Diazonium Salts
作者:Kumara S. Nalivela、Michael Tilley、Michael A. McGuire、Michael G. Organ
DOI:10.1002/chem.201402092
日期:2014.5.26
A single pass flowdiazotization/Mizoroki–Heckprotocol has been developed for the production of cinnimoyl and styryl products. The factors that govern aryl diazonium salt stability have been examined in detail leading to the development of a MeOH/DMF co‐solvent system in which the diazoniumsalts can be generated in the presence of all other reaction components and then coupled selectively to give
particularly efficient organophotocatalyst to promote lactone formation under visible-light irradiation within 6 h. Ultimately, it was found that this protocol could enable the formation of racemic herbaric acid.