Cyclization reaction of S-substituted thioglycerol and oligoethylene glycol ditosylate gave thiolariat ethers in moderate yields. Mercaptomethyl crownethers were obtained easily from benzylthiomethyl crownethers by Na in liq. NH3–BuOH.
S-取代的硫代甘油和低聚乙二醇二甲苯磺酸酯的环化反应以中等产率得到硫茚醚。巯基甲基冠醚很容易从苄基硫甲基冠醚中通过 Na 溶液得到。NH3-BuOH。