Iron-Catalyzed Oxidative Decarboxylation of Oxamic Acids: A Safe and Efficient Photochemical Route to Urethanes
作者:Yannick Landais、Gülbin Kurtay、Jonathan Lusseau、Frédéric Robert
DOI:10.1055/a-2131-3368
日期:2024.2
This study presents a facile method for synthesizing urethanes through the photocatalyzed oxidative decarboxylation of oxamic acids. The process involves the formation of an isocyanate in situ from an oxamic acid under blue-light irradiation (427 nm) in the presence of ferrocene as a photocatalyst, 2-picolinic acid as a ligand, and potassium bromate as an oxidant. The one-pot procedure effectively avoids
本研究提出了一种通过草酰胺酸光催化氧化脱羧合成聚氨酯的简便方法。该过程涉及在二茂铁作为光催化剂、2-吡啶甲酸作为配体和溴酸钾作为氧化剂存在下,在蓝光照射(427 nm)下由草酸原位形成异氰酸酯。一锅法有效避免了致癌异氰酸酯的分离、纯化和储存,使其成为从易于获得的起始原料中获得目标聚氨酯的更安全、更实用的方法。