A strategy for the photosensitized cycloaddition of alkenylboronates and allylic alcohols by a temporary coordination is presented. The process allows for the synthesis of a diverse range of cyclobutylboronates. Key to development of these reactions is the temporary coordination of the allylic alcohol to the Bpin unit. This not only allows for the reaction to proceed in an intramolecular manner but
提出了一种通过临时配位对烯基
硼酸酯和
烯丙醇进行光敏环加成的策略。该过程允许合成各种
环丁基硼酸酯。这些反应发展的关键是
烯丙醇与 Bpin 单元的临时协调。这不仅允许反应以分子内方式进行,而且还允许高
水平的立体和区域控制。这些研究的一个关键方面是环加合物在合成复杂的
天然产物 artochamin J 和 piperarborenine B 中的效用。