Ultrasound‐Facilitated Direct meta ‐C−H Functionalization of Arenes: A Time‐Economical Strategy under Ambient Temperature with Improved Yield and Selectivity

Autor: Hediyala B. Chandrashekar, Ramasamy Jayarajan, Aishwarya K. Dalvi, Debabrata Maiti
Rok vydání: 2020
Předmět:
Zdroj: Chemistry – A European Journal. 26:11426-11430
ISSN: 1521-3765
0947-6539
DOI: 10.1002/chem.202001757
Popis: The horizon of ultrasound-assistance has been expanded to palladium-catalyzed distal C-H functionalization of arenes. Compared to thermal conditions, operationally simple ultrasound mediated distal C-H functionalization occurred with a shorter reaction time and enhanced reactivity of reactants to give superior yields with improved selectivity both in terms of meta:others and mono:di. A wide variety of meta-functionalizations such as olefination, alkylation, acetoxylation, allylation and cyanation were successfully carried out under ambient temperature.
Databáze: OpenAIRE
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