A catalyst‐ and additive‐free practical and green synthetic strategy for decarboxylative C‐4 phosphorylation of coumarin‐3‐carboxylic acids, for the first time, has been accomplished to access a series of substituted 4‐(diarylphosphoryl)chroman‐2‐ones at ambient conditions. The developed protocol is successfully applied to large‐scale synthesis.

中文翻译：

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室温条件下香豆素-3-羧酸的无催化剂和无添加剂的羧化C-4磷酸化

首次实现了香豆素-3-羧酸脱羧化C-4磷酸化的无催化剂和无添加剂的实用和绿色合成策略，可用于获得一系列取代的4-（二芳基磷酰基）苯并二氢萘-2-酮在环境条件下。所开发的协议已成功应用于大规模合成。