Enhancing catalytic activity of pyridines via para-iminophosphorano substituents
Autor: | C. Adam Dyker, Nicholas A. Richard, Grant D. Charlton |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Organic & Biomolecular Chemistry. 19:9167-9171 |
ISSN: | 1477-0539 1477-0520 |
Popis: | Four pyridines decorated with π-donating iminophosphorano substituents (R3PN–) in the 4-position were assessed as acylation catalysts. These catalysts display high sensitivity to the groups at phosphorus, with activities that are well correlated to the corresponding Hammett-type substituent constants (σp+), and can achieve superior activity over the most active dialkylamino-substituted pyridines. Iminophosphorano-substituted pyridines represent an easily accessible, tunable, and highly active class of nucleophilic organocatalysts. |
Databáze: | OpenAIRE |
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