Reactivity of N-alkanoyloxy-2,2,6,6-tetramethylpiperidines (O-acylTEMPOs) towards hydride-transferring or metallic alkylating reagents; unprecedented stability and application to chemoselective transformations
作者:Tsutomu Inokuchi、Hiroyuki Kawafuchi、Junzo Nokami
DOI:10.1039/b414129f
日期:——
Owing to the unprecedented stability of O-acylTEMPOs towards hydride-transferring and metallic alkylating reagents such as LiAlH4 and RMgX, chemoselective transformation of diacid mixed alkyl/TEMP-1-yl esters, where O-acylTEMPOs remained intact, is achieved with these reagents, giving the corresponding carbinols, respectively.
由于O-酰基TEMPO对诸如LiAlH4和RMgX等氢负离子转移剂和金属烷基化剂具有前所未有的稳定性,因此可以使用这些试剂对混合烷基/TEMPO-1-基酯羧酸进行化学选择性转化,其中O-酰基TEMPO保持不变,分别得到相应的醇。