Cobalt catalysed aminocarbonylation of thiols in batch and flow for the preparation of amides
作者:Jose Maria Orduña、Gema Domínguez、Javier Pérez-Castells
DOI:10.1039/d1ra04736a
日期:——
The synthesis of amides from thiols through a cobalt-catalyzed aminocarbonylation is shown. After optimizing all the reaction parameters, the methodology makes possible the obtention of amides with variable yields, while competing reactions such as the formation of disulfides and ureas can be limited. The process works well with aromatic thiols with electron donating groups (EDG) whereas other thiols
Solar photo-thermochemical syntheses of 4-bromo-2,5-substituted oxazoles from N-arylethylamides
作者:Milan Dinda、Supravat Samanta、Suresh Eringathodi、Pushpito K. Ghosh
DOI:10.1039/c3ra47603k
日期:——
isolated yields were in the range 42–82%. Benzylic bromination, followed by O–C bond formation through intramolecular nucleophilic substitution, and a second benzylic bromination followed by HBr elimination, gave the oxazole ring. A third bromination of the ring yielded the final product. The feasibility of synthesizing thiazole derivatives using a similar approach was also demonstrated. During the course