作者:Martin P Green、Jeremy C Prodger、Christopher J Hayes
DOI:10.1016/s0040-4039(02)00285-x
日期:2002.4
As part of our studies directed towards a total synthesis of lactacystin, we have developed a reliable and environmentally acceptable method to oxidise 2,2,4-trisubstituted 3-pyrrolines to the corresponding 3-pyrrolin-2-ones. Several protocols were examined and the two-step (i) TPAP/NMO; (ii) sodium hypochlorite allylic oxidation was found to be the most satisfactory. Catalytic oxidation of the 3-pyrroline
作为针对乳酸菌素全合成的研究的一部分,我们已经开发出一种可靠且环境可接受的方法,可将2,2,4-三取代的3-吡咯啉氧化为相应的3-吡咯啉-2-酮。检查了几种方案,分为两步(i)TPAP / NMO;(ii)发现次氯酸钠的烯丙基氧化是最令人满意的。3-吡咯啉的催化氧化以高收率得到相应的环状亚胺,随后用NaOCl氧化得到N-氯-3-吡咯啉-2-一。所述Ñ通过简单的酸处理除去氯取代基。