A Brønsted Acid Catalyzed Cascade Reaction for the Conversion of Indoles to α‐(3‐Indolyl) Ketones by Using 2‐Benzyloxy Aldehydes
作者:Ankush Banerjee、Modhu Sudan Maji
DOI:10.1002/chem.201902268
日期:2019.9.2
A Brønstedacid catalyzed, operationally simple, scalable route to several functionalized α-(3-indolyl) ketones has been developed and the long-standing regioisomeric issue has been eliminated by choosing appropriate carbonyls. A readily available and cheap bottle reagent was used as the catalyst. This protocol was also applicable to the synthesis of densely functionalized α-(3-pyrrolyl) ketones. A
Ruthenium-Catalyzed Cascade Annulation of Indole with Propargyl Alcohols
作者:Julia Kaufmann、Elisabeth Jäckel、Edgar Haak
DOI:10.1002/anie.201801846
日期:2018.5.14
Cascade transformations forming multiple bonds and one‐pot procedures provide rapid access to natural‐product‐like scaffolds from simple precursors. These atom‐economic processes are valuable tools in organic synthesis and drug discovery. Herein, we report on ruthenium‐catalyzed cascade annulations of indole with readily available propargylalcohols. These provide rapid access to diverse carbazoles
形成多个键和一锅法的级联转化提供了从简单前体中快速获得天然产物样支架的途径。这些原子经济过程是有机合成和药物发现中的宝贵工具。本文中,我们报道了钌与容易获得的炔丙醇的级联环空反应。这些提供了快速接近各种咔唑,环庚[ b ]吲哚和其他具有高选择性的稠合多环的途径。具有氧化还原偶联的环戊二烯酮配体的双功能钌配合物可作为不同级联过程的常用催化剂。
Ruthenium-Catalyzed Functionalization of Pyrroles and Indoles with Propargyl Alcohols
作者:Nora Thies、Cristian G. Hrib、Edgar Haak
DOI:10.1002/chem.201200188
日期:2012.5.14
Several ruthenium‐catalyzed atom‐economic transformations of propargylalcohols with pyrroles or indoles leading to alkylated, propargylated, or annulated heteroaromatics are reported. The mechanistically distinct reactions are catalyzed by a single ruthenium(0) complex containing a redox‐coupled dienone ligand. The mode of activation regarding the propargylalcohols determines the reaction pathway
CARBAZOLE CARBOXAMIDE COMPOUNDS USEFUL AS KINASE INHIBITORS
申请人:Liu Qingjie
公开号:US20100160303A1
公开(公告)日:2010-06-24
Compounds having the formula (I), and enantiomers, and diastereomers, pharmaceutically-acceptable salts, thereof,
are useful as kinase modulators, including Btk modulation.
Synthesis of carbazoles related to carbazomycin, hyellazole and ellipticine.
作者:Jan Bergman、Benjamin Pelcman
DOI:10.1016/s0040-4020(01)86029-4
日期:1988.1
2-disubstituted carbazoles are described. The first involves condensation of 2-alkyl-substituted indoles with 2,3-unsaturated ketones in the presence of Pd/C and molecular sieves, the second is based on the reaction of a 2-vinylic indole with the Vilsmeier reagent. The vinylic indoles were prepared by a Fischer indole synthesis, or via 1-benzenesulphonyl-2-lithioindole.