Selective palladium-catalyzed arylation(s) of benzaldehyde derivatives by N-heterocarbene ligands
摘要:
The 2- or 2,6-position(s) of aromatic aldehydes were directly and selectively arylated with aryl chlorides or bromides in the presence of a catalytic system prepared in situ from Pd(OAC)(2), imidazolinium chlorides (1-5) and Cs2CO3. (c) 2005 Elsevier Ltd. All rights reserved.