Direct Access to Primary Amines from Alkenes by Selective Metal‐Free Hydroamination
作者:Yi‐Dan Du、Bi‐Hong Chen、Wei Shu
DOI:10.1002/anie.202016679
日期:2021.4.26
selective synthesis of primary aminesfrom easily available precursors is attractive yet challenging. Herein, we report the rapid synthesis of primary aminesfrom alkenes via metal‐free regioselective hydroamination at room temperature. Ammonium carbonate was used as ammonia surrogate for the first time, allowing for efficient conversion of terminal and internal alkenes into linear, α‐branched, and α‐tertiary
[EN] 3-AZABICYCLO(3.1.0)HEXANE DERIVATIVES HAVING KDM5 INHIBITORY ACTIVITY AND USE THEREOF<br/>[FR] DÉRIVÉS DE 3-AZABICYCLO(3.1.0)HEXANE PRÉSENTANT UNE ACTIVITÉ INHIBITRICE DE KDM5 ET LEUR UTILISATION
申请人:ONO PHARMACEUTICAL CO
公开号:WO2021223699A1
公开(公告)日:2021-11-11
The present invention provides KDM5 inhibitor. The compound disclosed herein represented by the general formula (I) : wherein all symbols have the same meanings as the definitions described in the specification; or a salt thereof is useful as a prophylactic and/or therapeutic agent for cancer, Huntington's disease, Alzheimer's disease and the like.
Iron‐Catalyzed Radical Asymmetric Aminoazidation and Diazidation of Styrenes
作者:Daqi Lv、Qiao Sun、Huan Zhou、Liang Ge、Yanjie Qu、Taian Li、Xiaoxu Ma、Yajun Li、Hongli Bao
DOI:10.1002/anie.202017175
日期:2021.5.25
Asymmetric aminoazidation and diazidation of alkenes are straightforward strategies to build value‐added chiral nitrogen‐containing compounds from feedstock chemicals. They provide direct access to chiral organoazides and complement enantioselective diamination. Despite the advances in non‐asymmetric reactions, asymmetric aminoazidation or diazidation based on acyclic systems has not been previously
The Wittig reaction of nonstabilized ylides with benzaldehyde and benzophenone was investigated in detail by means of carbonyl- 14 C kinetic isotope effects, substituenteffects, and isotope-scrambling and probe experiments. The reaction with benzophenone gave the carbon isotope effects and the Hammett p values of considerable magnitude both in Li salt-free and salt-present conditions. In contrast
通过羰基- 14 C 动力学同位素效应、取代基效应以及同位素加扰和探针实验,详细研究了不稳定叶立德与苯甲醛和二苯甲酮的 Wittig 反应。与二苯甲酮的反应在无锂和含盐条件下都产生了相当大的碳同位素效应和哈米特 p 值。相比之下,它们与苯甲醛的反应非常小。烯酮异构化和脱卤探针实验表明不稳定的叶立德有足够的能力将电子转移给苯甲醛和二苯甲酮
Rhodium(II)-Catalyzed Enantioselective Intermolecular Aziridination of Alkenes
作者:Vincent Boquet、Ali Nasrallah、Alejandro L. Dana、Erwan Brunard、Pablo H. Di Chenna、Fernando J. Duran、Pascal Retailleau、Benjamin Darses、Marie Sircoglou、Philippe Dauban
DOI:10.1021/jacs.2c07337
日期:2022.9.21
dirhodium(II) tetracarboxylates are highly efficient catalysts for the asymmetric intermolecular aziridination of substituted alkenes with sulfamates. The reaction proceeds with high levels of efficiency and chemoselectivity to afford aziridines with excellent yields of up to 95% and enantiomeric excesses of up to 99%. The scope of the alkene aziridination includes mono-, di-, and trisubstituted olefins as well