This manuscript intends to overview the most recent advances in the synthesis of carbo- and heterocycles through reactions of alkynes with organyl chalcogenides (S, Se, Te) under metal-free conditions. Firstly, the use of electrophilic chalcogenyl halides as a selective reagent for alkyne carbon-carbon triple bond activation will be presented. After that, radical cyclization protocols employing electrochemical oxidative conditions, light-induced photoredox catalysis, or mild oxidants with direct chalcogenyl group installation will be discussed accompanied by the proposed mechanisms.

中文翻译：

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通过炔烃与有机硫属化物的反应无过渡金属合成碳环和杂环

本手稿旨在概述通过炔烃与有机硫属化物（S、Se、Te）在无金属条件下的反应合成碳环和杂环的最新进展。首先，将介绍使用亲电硫属元素卤化物作为炔烃碳-碳三键活化的选择性试剂。之后，将讨论采用电化学氧化条件、光诱导光氧化还原催化或具有直接硫属元素基团安装的温和氧化剂的自由基环化方案，并附有所提出的机制。