This minireview summarizes recent findings on isolable congeners of cyclobutane-1,3-diyl from the views of structural characters, usefulness for organo electronics, and activation of small molecules. Recent findings on isolable cyclopentane-1,3-diyl, 2,4-dimethylene-1,3-cyclobutanediyl, and cyclobutadiene are also overviewed. This article focuses on the reports on the isolable biradicals that have been published since 2013.

中文翻译：

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1,3-二磷环丁烷-2,4-二基衍生物的主题：环丁烷-1,3-二基和相关分子的可分离的较重同系物的结构方面和功能

这篇小型综述从结构特征，有机电子学的有用性和小分子活化的角度总结了关于环丁烷1,3-二基的可分离同源物的最新发现。还概述了关于可分离的环戊烷-1,3-二基，2,4-二亚甲基-1,3-环丁二烯和环丁二烯的最新发现。本文重点介绍自2013年以来已发布的有关可隔离双基的报告。