Scalable synthesis of β-truxinic acid (CBDA-4) was accomplished by capturing and photodimerizing a metastable crystalline solid of trans-cinnamic acid. This synthetic approach builds a foundation for investigating the properties and applications of the useful diacid. The X-ray crystal structure of CBDA-4 was determined for the first time. The cyclobutane ring in CBDA-4 was cleaved upon heating, making it a promising building block for thermally recyclable/degradable materials.

中文翻译：

---

可扩展的制备和性质调查顺-环丁烷-1,2-二羧酸从β-反式-肉桂酸†

通过捕获和光二聚反式肉桂酸的亚稳态结晶固体，可实现β-精氨酸（CBDA-4）的可扩展合成。这种合成方法为研究有用的二酸的性质和应用奠定了基础。首次确定了CBDA-4的X射线晶体结构。CBDA-4中的环丁烷环在加热时被裂解，使其成为热可回收/可降解材料的有前途的基石。