A versatile new method for the synthesis of various pyrrolidin-1-oxyl fatty acids
作者:K�lm�n Hideg、L�szl� Lex
DOI:10.1039/c39840001263
日期:——
Mono-and di-carboxylic acid derivatives of various structural isomers the pyrrolidin-1-oxyl ring containing a stable free radical (spin label)can be obtained by Michael addition of a nitroalkane to an α,β-unsaturated ketone ot give a γ-nitroketone, followed by ring closure to a pyrrolin-1-yl oxide which reacts with Grignard reagents to give a pyrrolidin-1-oxyl compound, which undergoes phase-transfer
各种结构异构体的单和二羧酸衍生物,含有稳定自由基的吡咯烷-1-氧基环(旋转标记),可以通过将硝基烷烃迈克尔加成到α,β-不饱和酮上而得到γ-硝基酮,然后闭环成吡咯烷-1-基氧化物,与格利雅试剂反应生成吡咯烷-1-氧基化合物,该化合物的末端不饱和键经历相转移氧化。