Sonogashira coupling was investigated as a promising strategy for the synthesis of a multi‐spin system based on ‘Kuhn'‐verdazyls, oxoverdazyls, and nitronyl‐nitroxides. Eleven hetero‐diradicals were isolated in up to 56 % yields by a one‐step protocol. Oxoverdazyl radicals had the highest reactivity. This research opens access to simple design and investigation of conjugated diradicals.

中文翻译：

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多旋转系统的制备：以基于Tolane桥的基于Verdazyl的杂双自由基为例的研究

Sonogashira偶联被研究为合成基于'Kuhn'-verdazyls，oxoverdazyls和硝酰基-硝基氧化物的多纺丝系统的一种有前途的策略。一步法分离出11种杂二基化合物，收率高达56％。Oxoverdazyl自由基具有最高的反应性。这项研究为共轭双基的简单设计和研究提供了机会。