Direct metalation of methoxymethyl arylmethyl ethers: A tin-free approach to the generation of α-alkoxyalkoxy-substituted aryllithiums
作者:Ugo Azzena、Luisa Pisano、Sarah Mocci
DOI:10.1016/j.jorganchem.2009.07.007
日期:2009.10
arylmethyllithiums was achieved by directmetalation of the corresponding arylmethyl methoxymethyl ethers. While the effect of substituents at the benzylic position is straightforward, substituents located on the aromatic ring promote the set up of a competition between lateral and aromatic metalation, strongly affected by the position and relative orthodirecting properties of the new substituent. The proposed methodology