The Lithiation/Oxygenation Approach to Calix[6]arenes Selectively Functionalized at a Pair of Opposite Methylene Bridges
作者:Ori Shalev、Silvio E. Biali
DOI:10.1021/acs.orglett.8b00671
日期:2018.4.20
Lithiation of the calix[6]arene methyl ether 2 followed by reaction with O2 yields derivatives with two opposite methylene groups hydroxylated. Calix[6]arenes with two opposite bridges functionalized with alkoxy, azido, and m-xylyl groups were prepared via reaction of a dichlorocalix[6]arene derivative with nucleophiles.