Tighten your belt: [12]Cycloparaphenylene, the sidewall segment of a carbon nanotube (see picture), has been synthesized in a selective manner through stepwise palladium‐catalyzed coupling reactions. The synthesis capitalizes on the ability of the cis‐1,4‐dihydroxycyclohexane‐1,4‐diyl unit to attenuate the build‐up of strain energy during macrocyclization.

中文翻译：

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[12]环对亚苯基的选择性合成

系紧安全带：[12]碳纳米管的侧壁部分（见图）环对亚苯基是通过逐步的钯催化的偶联反应以选择性方式合成的。该合成利用顺环1，4-二羟基环己烷-1，4-二基单元在大环化过程中减弱应变能积累的能力。