A novel access to deuterated and D3CO-substituted arenes has been developed using immobilized triazenes as precursors. The linker system and the deuterating cleavage methodology could be shown to be compatible with various functional groups and are therefore suitable for the synthesis of derivatives only hardly available via comparable protocols.
The recent surge in the applications of deuterated drug candidates has rendered an urgent need for diverse deuterium labeling techniques. Herein, an efficient Rh-catalyzed deuterated Tsuji–Wilkinson decarbonylation of naturally available aldehydes with D2O is developed. In this reaction, D2O not only acts as a deuterated reagent and solvent but also promotes Rh-catalyzed decarbonylation. In addition
最近氘代候选药物的应用激增,迫切需要各种氘标记技术。在此,开发了一种高效的 Rh 催化的氘代 Tsuji-Wilkinson 用 D 2 O 对天然可用的醛进行脱羰反应。在该反应中,D 2 O 不仅充当氘代试剂和溶剂,而且还促进 Rh 催化的脱羰。此外,从 α,β-不饱和醛合成末端单氘代烯烃的脱羰策略也触手可及。
A convenient method for palladium-catalyzed reductive deuteration of organic substrates using deuterated hypophosphite in D<sub>2</sub>O
作者:Makoto Oba
DOI:10.1002/jlcr.3277
日期:2015.5.15
A convenient method for the deuteration of organic substrates using deuterated hypophosphite as the deuterium source was investigated. Transfer deuteration of organic substrates, such as aromatic halides, alkenes, alkynes, epoxides, and O-benzyl derivatives, in the presence of palladium on carbon in deuterium oxide proceeded efficiently to give the corresponding deuterated products in excellent yields with high deuterium contents.