Ligand-Free Iron-Catalyzed Regioselectivity-Controlled Hydroboration of Aliphatic Terminal Alkenes
作者:Wei Su、Rui-Xiao Qiao、Yuan-Ye Jiang、Xiao-Li Zhen、Xia Tian、Jian-Rong Han、Shi-Ming Fan、Qiushi Cheng、Shouxin Liu
DOI:10.1021/acscatal.0c02731
日期:2020.10.16
recognized as the elementary issue for alkene hydroboration. Despite considerable progress, the specificity of alkene substrates or the adjustment of ligands was necessary for specific regioselectivities, which restrict the universality and practicability. Herein, we report a ligand-free iron-catalyzed regiodivergent hydroboration of aliphatic terminal alkenes that obtains both Markovnikov and anti-Markovnikov
We report herein a novel photoredox‐catalyzed synthesis of allylic trifluoromethanes. The use of sulfilimino iminium as a source of trifluoromethyl radicals proves crucial to achieving high selectivity. Importantly, both styrene derivatives and unactivated alkenes are for the first time suitable partners for this process. The mild reaction conditions are compatible with a variety of functional groups
我们在这里报告了一种新型的光氧化还原催化的烯丙基三氟甲烷合成。证明使用硫基氨基亚胺作为三氟甲基自由基的来源对于实现高选择性至关重要。重要的是,苯乙烯衍生物和未活化的烯烃都首次是该方法的合适的伙伴。温和的反应条件与各种官能团相容。显着地,该方法易于扩展至其他全氟烷基(R F= CFCl 2,CF 2 Br,C 4 F 9)。还提供了广泛的力学研究。
NOVEL SPIROHETEROCYCLIC COMPOUNDS AS MGLU5 ANTAGONISTS
申请人:Leonardi Amedeo
公开号:US20120059015A1
公开(公告)日:2012-03-08
The invention is directed to methods of using antagonists selective for the metabotropic mGlu5 receptor to treat conditions of neuromuscular dysfunction of the lower urinary tract in a mammal. Provided are methods of treating a mammal suffering from a condition of neuromuscular dysfunction of the lower urinary tract by administering a selective mGlu5 antagonist. The selective mGlu5 antagonist may be administered alone or in combination with one or more additional therapeutic agents for treating such a condition. Also provided are methods of identifying selective mGlu5 antagonists that are useful for treating neuromuscular dysfunction of the lower urinary tract in a mammal. Methods for treating migraine and gastroesophageal reflux disease (GERD) using selective mGlu5 antagonists are also disclosed.
Multicomponent Direct Assembly of <i>N</i>-Heterospirocycles Facilitated by Visible-Light-Driven Photocatalysis
作者:Oliver M. Griffiths、Steven V. Ley
DOI:10.1021/acs.joc.2c01684
日期:2022.10.7
found in both natural products and medicinal compounds but have relatively few reliable methods for their synthesis. Here, we enlist the photocatalytic generation of N-centered radicals to construct β-spirocyclic pyrrolidines from N-allylsulfonamides and alkenes. A variety of β-spirocyclic pyrrolidines have been constructed, including drug derivatives, in moderate to very good yields. Further derivatization