Sequential Pd 0 ‐ and Pd II ‐Catalyzed Cyclizations: Enantioselective Heck and Nucleopalladation Reactions

Autor: Jonathan Bajohr, Ramon Arora, Andrew Whyte, Mark Lautens, Alexa Torelli
Rok vydání: 2021
Předmět:
Zdroj: Angewandte Chemie. 133:20393-20398
ISSN: 1521-3757
0044-8249
DOI: 10.1002/ange.202106518
Popis: An enantioselective consecutive cyclization/coupling process, catalyzed by palladium is reported. Stereoinduction arises from an enantioselective carbopalladation, generating an intermediate which promotes a nucleopalladation step. The dual cyclization sequence was compatible with a variety of alkyne-tethered oxygen- and nitrogen-centered nucleophiles, and a variety of alkenyl-tethered aryl iodides, to forge numerous bisheterocycles in good yields and high regio- and enantioselectivities.
Databáze: OpenAIRE