Investigating N-methoxy-N′-aryl ureas in oxidative C–H olefination reactions: an unexpected oxidation behaviour
作者:Jens Willwacher、Souvik Rakshit、Frank Glorius
DOI:10.1039/c1ob05636k
日期:——
Herein, we report a urea derived directing group for mild and highly selective oxidative CâH bond olefination. Subsequent intramolecular Michael addition affords dihydroquinazolinones in good yields. The NâO bond of the urea substrate exhibits superior oxidative behaviour compared to a variety of other external oxidants.