Metal-Free Oxidative Functionalization of C(sp<sup>3</sup>)–H Bond Adjacent to Oxygen and Radical Addition to Olefins
作者:Wei Zhou、Ping Qian、Jincan Zhao、Hong Fang、Jianlin Han、Yi Pan
DOI:10.1021/acs.orglett.5b00088
日期:2015.3.6
A DTBP-promoted oxidative functionalization of a C(sp3)–Hbond adjacent to oxygen and intermolecular radical addition to olefins without use of any metal catalyst or photoredox catalysis is reported. The reaction has a wide scope of olefin, alcohol, and cycloether substrates, which provides an easy way for direct preparation of α,ω-amino alcohols.
Ruthenium(<scp>ii</scp>)-catalyzed C–H activation and (4+2) annulation of aromatic hydroxamic acid esters with allylic amides
作者:Chandan Kumar Giri、Suman Dana、Mahiuddin Baidya
DOI:10.1039/d1cc04422b
日期:——
using aromatic hydroxamicacid esters as the oxidizing directing group and allylic amides as unactivated olefin coupling partners, delivering a wide variety of aminomethyl isoquinolinones in good to excellent yields. This annulation is distinctive as allylic congeners typically result in allylation and not the annulation. Late-stage derivatization of a bioactive synthetic bile acid has been showcased
据报道,在 Ru( II ) 催化下的 (4+2) 环化使用芳族异羟肟酸酯作为氧化导向基团,烯丙基酰胺作为未活化的烯烃偶联伙伴,以良好到优异的产率提供各种氨甲基异喹啉酮。这种环化是独特的,因为烯丙基同类物通常导致烯丙基化而不是环化。已经展示了生物活性合成胆汁酸的后期衍生化。
Visible-Light-Induced Difluoroalkylation of Alkenes and Alkynes with Fluoro-Containing Hypervalent Iodane (III) Reagents Under Photo-Catalyst-Free Conditions
作者:Ruiyue Liu、Ningning Zhou、Tingting Zhao、Ying Zhang、Kun Wang、Xia Zhao、Kui Lu