Iron(II)-Catalyzed Site-Selective Functionalization of Unactivated C(sp<sup>3</sup>
)−H Bonds Guided by Alkoxyl Radicals
作者:Honghao Guan、Shutao Sun、Ying Mao、Lei Chen、Ran Lu、Jiancheng Huang、Lei Liu
DOI:10.1002/anie.201806434
日期:2018.8.27
for site‐selectivefunctionalization of unactivated methylene and methine C−H bonds enabled by an FeII‐catalyzed redox process is described. The mild, expeditious, and modular protocol allows efficient remote aliphatic fluorination, chlorination, amination, and alkynylation of structurally and electronically varied primary, secondary, and tertiary hydroperoxides with excellent functional‐group tolerance
Catalyst-Free α-trans-Selective Hydroboration and (E)-Selective Deuterated Semihydrogenation of Alkynyl Sulfones
作者:Yunnan Duan、Zhouqing Zheng、Zhiwei Yu、Shitao Sun、Bin Lin、Xiaozu Liu、Peijun Liu
DOI:10.1021/acs.joc.3c02833
日期:2024.6.21
alkynyl triflone 1b is studied by density functional theory (DFT) calculations for trans-hydroboration. Moreover, a regiodivergent deuterated semihydrogenation of alkynyl triflones has also been developed using D2O as the deuterium source. A variety of diversity-oriented D-containing vinyl triflones were prepared in good to excellent yields with excellent deuterium incorporation ratios. Synthetic manipulations
在这里,我们提出了炔基砜与 NHC-硼烷的直接 α-反式选择性硼氢化反应,无需催化剂。该反应与多种底物兼容,能够以令人满意的产率有效生产结构多样的α-硼基化乙烯基砜。通过密度泛函理论 (DFT) 计算反式硼氢化反应,研究了从 NHC-硼烷2a到炔基三氟酮1b的氢化物转移。此外,还开发了使用D 2 O作为氘源的炔基三氟酮的区域发散氘化半氢化反应。多种面向多样性的含 D 乙烯基三氟乙烯以良好至优异的产率制备,并且具有优异的氘掺入比。实现了氘化产物的合成操作,将其转化为有价值的氘化分子,表明了该方案的实用性。