作者:Claude Commandeur、Céline Chalumeau、Jean Dessolin、Michel Laguerre
DOI:10.1002/ejoc.200700135
日期:2007.6
In order to obtain functionalized naphthoquinones, a systematic study of the Kochi–Anderson procedure for the alkylation of quinones is presented. While linear amino acids of different lengths were good substrates for this decarboxylation procedure, chiral α-amino acids were unsuccessful substrates. The best reaction conditions were evaluated with β-alanine and then applied to a series of carboxylic
为了获得功能化的萘醌,提出了对醌烷基化的 Kochi-Anderson 程序的系统研究。虽然不同长度的线性氨基酸是这种脱羧过程的良好底物,但手性 α-氨基酸是不成功的底物。用β-丙氨酸评估最佳反应条件,然后将其应用于一系列羧酸以获得萘醌的化学多样性。我们观察到酸的取代对于烷基化是至关重要的,即使使用不同的反应物,也可以用 1,4-萘醌实现双烷基化。Barton 程序尝试在一些底物上与我们的结果进行比较,但无论使用哪种自由基陷阱,都没有观察到反应。(© Wiley-VCH Verlag GmbH & Co. KGaA,