Divergent Pd-catalyzed Functionalization of 4-Oxazolin-2-ones and 4-Methylene-2-oxazolidinones and Synthesis of Heterocyclic-Fused Indoles

Autor: Daniel Yescas-Galicia, Rodrigo A. Restrepo-Osorio, Ailyn N. García-González, Roberto I. Hernández-Benítez, José C. Espinoza-Hicks, Carlos H. Escalante, Edson Barrera, Blanca M. Santoyo, Francisco Delgado, Joaquín Tamariz
Rok vydání: 2022
Předmět:
Zdroj: The Journal of Organic Chemistry. 87:13034-13052
ISSN: 1520-6904
0022-3263
DOI: 10.1021/acs.joc.2c01563
Popis: Palladium-catalyzed functionalization was presently performed on two building blocks: 4-oxazolin-2-ones and 4-methylene-2-oxazolidinones. Direct Heck arylation of 4-oxazolin-2-ones led to a series of 5-aryl-4-oxazolin-2-ones, including analogues with N-chiral auxiliary, in an almost quantitative yield. The Pd(II)-catalyzed homocoupling reaction of 4-oxazolin-2-ones provided novel heterocyclic across-ring dienes. Meanwhile, the intramolecular cross-coupling of
Databáze: OpenAIRE