Metal-Free and Redox-Neutral Conversion of Organotrifluoroborates into Radicals Enabled by Visible Light
作者:Wenbo Liu、Peng Liu、Leiyang Lv、Chao-Jun Li
DOI:10.1002/anie.201807181
日期:2018.10.8
through an SH2 process. This strategy is enabled by using water as the solvent, visible light as the energy input, and diacetyl as the promoter in the absence of any metal catalyst or redox reagent, thereby eliminating metal waste. To demonstrate its synthetic utility, an efficient acetylation to prepare valuable aryl (alkyl) methyl ketones is described and applications to construct C−C, C−I, C−Br
将有机硼化合物转化为相应的基团在有机化学中具有广泛的合成应用。为了实现这些转化,需要采用化学计量的各种强氧化剂如Mn(OAc)3,AgNO 3 / K 2 S 2 O 8和Cu(OAc)2,并通过单电子转移机理进行。本文确立了一种独特的策略,可通过S H从有机三氟硼酸盐生成芳基和烷基2过程。在没有任何金属催化剂或氧化还原试剂的情况下,通过使用水作为溶剂,使用可见光作为能量输入,使用二乙酰作为促进剂来启用此策略,从而消除了金属浪费。为了证明其合成用途,描述了一种有效的乙酰化反应以制备有价值的芳基(烷基)甲基酮,并且构造C-C,C-I,C-Br和C-S键的应用也是可行的。实验证据表明,三联体二乙酰是该过程的关键中间体。
[EN] SUBSTITUTED 4,5,6,7-TETRAHYDRO-PYRAZOLO[1,5-a]PYRAZINE DERIVATIVES AND 5,6,7,8-TETRAHYDRO-4H-PYRAZOLO[1,5-a][1,4]DIAZEPINE DERIVATIVES AS ROS1 INHIBITORS<br/>[FR] DÉRIVÉS 4,5,6,7-TÉTRAHYDRO-PYRAZOLO[1,5-A]PYRAZINE SUBSTITUÉS ET DÉRIVÉS 5,6,7,8-TÉTRAHYDRO-4H-PYRAZOLO[1,5-A][1,4]DIAZÉPINE UTILISÉS COMME INHIBITEURS DE ROS1
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2015144799A1
公开(公告)日:2015-10-01
The present invention relates to substituted 4,5,6,7-tetrahydro-pyrazolo[1,5-a]pyrazine derivatives and 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a][1,4]diazepine derivatives of formula (I) wherein the variables have the meaning defined in the claims. The compounds according to the present invention are useful as ROS 1 inhibitors. The invention further relates to processes for preparing such novel compounds, pharmaceutical compositions comprising said compounds as an active ingredient as well as the use of said compounds as a medicament.
本发明涉及取代的4,5,6,7-四氢吡唑并[1,5-a]吡嗪衍生物和5,6,7,8-四氢-4H-吡唑并[1,5-a][1,4]二氮杂环衍生物的公式(I)中的变量具有权利要求中定义的含义。根据本发明的化合物可用作ROS 1抑制剂。本发明还涉及制备这种新化合物的方法,包含所述化合物作为活性成分的药物组合物,以及将所述化合物用作药物的用途。