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
Asymmetric Ru/Cinchonine Dual Catalysis for the One-Pot Synthesis of Optically Active Phthalides from Benzoic Acids and Acrylates
作者:Dattatraya H. Dethe、Nagabhushana C. Beeralingappa、Salman A. Siddiqui、Prakash N. Chavan
DOI:10.1021/acs.joc.1c02961
日期:2022.4.1
Herein, we report the asymmetric Ru/cinchonine dual catalysis that provides straightforward access to enantioselective synthesis of C-3 substituted phthalides via tandem C–H activation/Michael addition cascade. The use of readily accessible and less expensive [RuCl2(p-cym)]2 and cinchonine catalyst for the one-pot assembly of chiral phthalides greatly overcomes the present trend of using highly sophisticated