Synthesis of Oxazolines from Amides via Palladium-Catalyzed Functionalization of Unactivated C(sp<sup>3</sup>)–H Bond
作者:Bo Li、Si-Qing Wang、Bin Liu、Bing-Feng Shi
DOI:10.1021/acs.orglett.5b00151
日期:2015.3.6
enables the expeditious synthesis of oxazolines from amides via Pd-catalyzed C(sp3)–H functionalization has been described. Preliminary studies indicate that the reaction might go through a chlorination/nucleophilic cyclization sequence, and the high efficiency of this sequence is enhanced by the in situ cyclative capture of the chlorinated intermediate. The resulting oxazolines can be further converted
已经描述了一种补充方法,该方法能够通过Pd催化的C(sp 3)–H功能化从酰胺快速合成恶唑啉。初步研究表明,该反应可能会经历氯化/亲核环化序列,并且该序列的高效性通过氯化中间体的原位环化捕获得到增强。可以将所得的恶唑啉不经色谱进一步转化为相应的β-氨基醇。