Selective N,O-Addition of the TEMPO Radical to Conjugated Boryldienes

Autor: Armido Studer, Matthias Tesch, Constantin G. Daniliuc, Fatma Türkyilmaz, Gerald Kehr, Gerhard Erker, Jun Li
Rok vydání: 2015
Předmět:
Zdroj: Angewandte Chemie International Edition. 55:1470-1473
ISSN: 1433-7851
DOI: 10.1002/anie.201509114
Popis: B(C6F5)2-containing boryldienes 4 underwent the addition of two molar equivalents of TEMPO to give N,O-bonded four-membered heterocyclic products 7. The reaction is a metal-free example of the generation of reactive nitrogen-centered TEMPO radical derivatives, in this case by the addition of TEMPO to the borane, followed by carbon-nitrogen bond formation and subsequent trapping of the resulting allyl radical by the second equivalent of TEMPO.
Databáze: OpenAIRE