Regioselective difluoroalkylation of 2-pyridones with fluoroalkyl bromides enabled by a nickel(II) catalyst
Title | Regioselective difluoroalkylation of 2-pyridones with fluoroalkyl bromides enabled by a nickel(II) catalyst |
Publication Type | Journal Article |
Year of Publication | 2025 |
Authors | Pradhan, C, Khandelwal, D, Punji, B |
Journal | Chemistry-An Asian Journal |
Volume | 20 |
Issue | 10 |
Date Published | MAY |
Type of Article | Article |
ISSN | 1861-4728 |
Keywords | 2-pyridones, Difluoroalkylation, Nickel, radical intermediate, Regioselectivity |
Abstract | Regioselective C-H difluoroalkylation of diverse 2-pyridones with ethyl bromodifluoroacetates and bromodifluoroacetamides is accomplished by using a (dppf)NiCl2 catalyst under mild conditions. This efficient protocol could deliver a variety of C-3 difluoroalkylated pyridones with the tolerance of a range of highly susceptible functionalities, such as -Cl, -Br, -I, -COMe, -CN, -NMe2 and -NO2, including heteroarenes like pyridinyl, furanyl, thiophenyl and carbazolyl moieties. A preliminary mechanistic study suggests the radical pathway for the reaction involving fluoroalkyl radical intermediate. |
DOI | 10.1002/asia.202401870 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 3.3 |
Divison category:
Organic Chemistry
Database:
Web of Science (WoS)
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