Exploiting Aggregation To Achieve Phase Separation in Macrocyclization
作者:Anne-Catherine Bédard、Shawn K. Collins
DOI:10.1002/chem.201203433
日期:2013.2.4
The aggregation properties of poly(ethylene glycol) (PEG) can be exploited in organic synthesis to control dilution effects. Through the use of solvent mixtures containing PEG400/MeOH, macrocyclization by Glaser–Hay coupling can be conducted at high concentrations. The origin of the selectivity has been studied by using surface tension measurements, UV spectroscopy, and chemical tagging and demonstrates