Diels–Alder-reactions of a thiazol-2-thione-based, tricyclic 1,4-di-phosphinine were investigated, showing that the central aromatic π-system can react with various dienophiles. The reaction with 4-phenyl-1,2,4-triazoline-3,5-dione was special as the product revealed a remarkable sensitivity towards light, thus enabling the photochemical deprotection of the tricyclic 1,4-diphosphinine.

中文翻译：

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[4 + 2]-基于噻唑的三环1，4-二膦亚胺的环加成反应和一种新的简单的1,4-二膦亚胺保护脱保护策略。

研究了基于噻唑-2-硫酮的三环1,4-二次膦的狄尔斯-阿尔德反应，结果表明，中心的芳香族π-系统可以与各种亲二烯体反应。与4-苯基-1,2,4-三唑啉-3,5-二酮的反应是特殊的，因为该产物显示出对光的显着敏感性，因此使得三环1,4-二膦可以进行光化学脱保护。