A one-step, operationally simple protocol for the synthesis of isomerically pure rhodamine dyes from phthalaldehydic acids is reported. Using a mixture of 2,2,2-trifluoroethanol and water as reaction media allows for clean and efficient formation of various rhodamines as a single isomer. This method was successfully applied to the synthesis of several isomerically pure rhodamines, including 6-carb
报道了一种从邻苯二酸合成异构纯
罗丹明染料的一步操作简单的方案。使用
2,2,2-三氟乙醇和
水的混合物作为反应介质可以清洁有效地形成各种若丹明,使其成为单一异构体。该方法已成功应用于克规模的几种异构纯
罗丹明的合成,包括
6-羧基四甲基罗丹明和
6-羧基-X-罗丹明(6-CXR)。还描述了一种简单的,一步一步的Pd催化的羟基羰基化方法,用于从适当取代的二卤代苯并
甲醛中制取邻苯二酸。