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本文报道几种炔二醇在硫酸汞催化下的环化反应。γ-炔二醇环化产物的羰基位于原炔二醇中叔醇羟基的β位。而凸σ-炔二醇水化产物的羰基则处于α位。
This paper reports the cyclization of several acetylenic glycols catalyzed by mercury sulfate. The carbonyl group of the γ-acetylenic diol cyclization product is located at the β position of the tertiary alcohol hydroxyl group in the original acetylene glycol. The carbonyl of the convex σ-acetylenic diol hydrate is in the alpha position.