Rearrangemnets of organometallic compounds. 23. Carbon-skeletal [1,2] anionic and radical sigmatropic rearrangements: group migratory aptitudes as a probe of charge type in the 1,2-shifts of .beta.-phenyl-.beta.-(2-pyridyl)- and .beta.-phenyl-.beta.-(4-pyridyl)ethyl systems
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