2,3-Dihydro-1,4-benzoxathiine derivatives are important biologically active heterocyclic compounds. Approaches toward synthesis of 2,3-dihydro-1,4-benzoxathiine derivatives are summarized in this minireview, covering most important synthetic methods that might be gathered in six distinct categories: the intermolecular cyclizations of o-mercaptophenols, 2-mercaptoethanols, and their equivalents, cyclizations, cycloadditions, ring contractions and expansions, and reduction of 2,3-dihydro-1,4-benzoxathiine 4-oxides.

中文翻译：

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2,3-dihydro-1,4-benzoxathiine 衍生物的合成

2,3-Dihydro-1,4-benzoxathiine 衍生物是重要的生物活性杂环化合物。这篇综述总结了合成 2,3-二氢-1,4-苯并氧噻吩衍生物的方法，涵盖了最重要的合成方法，这些方法可能分为六个不同的类别：邻巯基酚、2-巯基乙醇及其分子间环化等价物、环化、环加成、环收缩和扩张，以及 2,3-dihydro-1,4-benzoxathiine 4-oxides 的还原。