Copper-Catalyzed Three-Components Intermolecular Alkylesterification of Styrenes with Toluenes and Peroxyesters or Acids
作者:Ying-Xia Dong、Yang Li、Chang-Cheng Gu、Shuai-Shuai Jiang、Ren-Jie Song、Jin-Heng Li
DOI:10.1021/acs.orglett.8b03330
日期:2018.12.7
A simple protocol for the three-component intermolecular alkylesterification of styrenes with toluenes and peroxyesters using a copper catalyst is described. A variety of ester-containing complex compounds were synthesized with excellent functional group tolerance and step efficiency. Employing the combination of carboxylic acids and di-tert-butyl peroxide (DTBP) oxidant instead of peroxyesters also
Synthesis of tert-butyl peresters from aldehydes by Bu4NI-catalyzed metal-free oxidation and its combination with the Kharasch–Sosnovsky reaction
作者:Wei Wei、Chao Zhang、Yuan Xu、Xiaobing Wan
DOI:10.1039/c1cc14602e
日期:——
A new tert-butyl peresterssynthesis directly from aldehydes and TBHP was developed via Bu(4)NI-catalyzed aldehyde C-H oxidation. Mechanistic studies suggest that the protocol proceeds via a radical process. Combining the method with the Kharasch-Sosnovsky reaction offers a practical approach for the synthesis of allylic esters from simple aldehydes and alkenes via a two-step one-pot procedure.
Cobalt-catalyzed C2α-acyloxylation of 2-substituted indoles with <i>tert</i>-butyl peresters
作者:Yuxiang Zhou、Chenglong Li、Xiaoyan Yuan、Feiyan Zhang、Xiaozu Liu、Peijun Liu
DOI:10.1039/c9ob00159j
日期:——
acyloxylation of 2-substituted indoles with tert-butyl peresters to synthesize diverse 2α-acyloxylated indole derivatives is described. This newly developed method exhibits mild conditions, low-cost catalyst, and high functional group compatibility. In addition, the effectiveness of this chemistry is illuminated by a late-stage modification of methylated indomethacin.
Rhodium(III)-Catalyzed C–H Activation/Alkyne Annulation by Weak Coordination of Peresters with O–O Bond as an Internal Oxidant
作者:Jiayu Mo、Lianhui Wang、Xiuling Cui
DOI:10.1021/acs.orglett.5b02291
日期:2015.10.16
A redox-economic strategy has been developed, involved in an efficient Rh(III)-catalyzed oxidative C–H activation and alkyneannulation with perester as the oxidizing directing group. In this process, the cleavage of an oxidizing O–O bond as an internal oxidant is described for the first time. This reaction could be carried out under mild conditions and exhibits excellent regioselectivity and wide