An iridium-catalyzed ortho C–H borylation reaction directed by cyclic dithioacetal moiety is disclosed. A series of borylation products were obtained in moderate to good yields under mild conditions in exclusive mono- and ortho-regioselectivity. Thus, the 1,3-dithiane or 1,3-dithiolane group serves as a remarkable effective directing group for C–H borylation without any ligand assistance. The further transformations of the borylation products are also carried out to change boryl group to other functional groups.

中文翻译：

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铱催化无硫的无配体CH硼化反应

公开了一种由环状二硫缩醛部分指导的铱催化的邻位CH硼氢化反应。在温和条件下以独有的单和邻位区域选择性，以中等至良好的产率获得了一系列的硼化产物。因此，在没有任何配体协助的情况下，1,3-二硫杂环己烷或1,3-二硫杂环戊烷可作为C–H硼酸酯化的有效指导基团。还进行了硼酸酯化产物的进一步转化，以将硼基改变为其他官能团。