作者:Krzysztof E. Krakowiak、Jerald S. Bradshaw、Peter Huszthy
DOI:10.1016/s0040-4039(00)76642-1
日期:1994.5
1-allyloxymethyl-2-trityloxyethanol (2) react readily at room temperature with substituted oligoethylene glycols or the ditosylate derivative of an oligoethylene glycol, respectively, to form the extended, ditrityl-protected, substituted oligoethylene glycols in high yields. The trityl groups are easily removed by acidified methanol in CH2Cl2 to give the extended, substituted oligoethylene glycols.