作者:Jan Vesely、Gui-Ling Zhao、Agnieszka Bartoszewicz、Armando Córdova
DOI:10.1016/j.tetlet.2008.04.162
日期:2008.6
A novel organocatalytic highly enantioselective nitrocyclopropanation reaction of α,β-unsaturated aldehydes is presented. The 1-nitro-2-formylcyclopropane derivatives synthesized from this catalytic transformation were converted to the corresponding β-nitromethyl-acid esters, which are excellent precursors of GABA analogues such as Baclofen, by subsequent organocatalytic chemoselective ring-opening
提出了一种新型的α,β-不饱和醛类有机催化高对映选择性硝基环丙烷化反应。通过随后的有机催化化学选择性开环,将从该催化转化中合成的1-硝基-2-甲酰基环丙烷衍生物转化为相应的β-硝基甲基丙烯酸酯,它们是GABA类似物(如巴氯芬)的极好前体。