The straightforward and efficient synthesis of naphtho[1,8‐bc]pyran derivatives and related polycyclic compounds is achieved by the rhodium‐catalyzed oxidative coupling of 1‐naphthols or other phenolic and alcoholic substrates with alkynes. In these annulation reactions, the hydroxy groups effectively act as the key function for the regioselective CH bond cleavage.

中文翻译：

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萘并[1,8-BC]吡喃衍生物和相关化合物的合成通过羟基定向Ç ？铑催化下的H键裂解

萘并[1,8- bc ]吡喃衍生物和相关多环化合物的直接有效合成是通过1-萘酚或其他酚和醇底物与炔烃的铑催化氧化偶联而实现的。在这些环化反应中，羟基有效地充当区域选择性CH键裂解的关键功能。