A new Efficient Method for the Preparation of 2,6-Pyridinedihiethyl Ditosylates from Dimethyl 2,60-Pyridinedicarboxylates
作者:György Howáth、Cristian Rusa、Zoltán Köntös、János Gerencsér、Péter Huszthy
DOI:10.1080/00397919908086011
日期:1999.11
report here an efficient method for the preparation of 2,6-pyridinedimethyl ditosylate and four of its 4-substituted derivatives, two of them have not been reported in the literature. We also describe here a modification of the reported synthesis for chelidonic and chelidamic acids with improved yields and higher purity.
摘要 我们在此报告了一种制备 2,6-吡啶二甲基二甲苯磺酸酯及其四种 4-取代衍生物的有效方法,其中两种尚未在文献中报道。我们还在这里描述了对已报道的螯合酸和螯合酸合成的改进,具有更高的产率和更高的纯度。