Macrocyclic mono-and diethers have been prepared in fairly good yields by means of a very convenient, straightforward procedure starting from the open-chained bifunctional precursors, namely, ow-bromoalkyl and ow-bromoalkoxyphenols. In some cases small amounts of the dimeric cycles were also isolated. The present work provides a further example of the effectiveness of the NaOH-Me2SO base-solvent system in promoting ring ...
