Abstract
Crown thioethers, 1,4,8,11-tetrathiacyclotetradecanes and 1,4,8,11,15,18-hexathiaheneicosanes, have been synthesized as 2:2 and 3:3 cycloadducts in a ‘one-pot’ homolytic macrocyclization of alkynes with propane-1,3-dithiol.
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