A method for the regioselective synthesis of 1-alkyl-1H-indazoles
摘要:
A method for the regioselective synthesis of 3-unsubstituted 1-alkyl-1H-indazoles, starting with 2-halobenzonitriles and N-alkylhydrazines, is described. The two-step reaction pathway proceeds through the intermediacy of 1-alkyl-3-amino-1H-indazoles followed by reductive deamination. (C) 2013 Elsevier Ltd. All rights reserved.
A method for the regioselective synthesis of 1-alkyl-1H-indazoles
摘要:
A method for the regioselective synthesis of 3-unsubstituted 1-alkyl-1H-indazoles, starting with 2-halobenzonitriles and N-alkylhydrazines, is described. The two-step reaction pathway proceeds through the intermediacy of 1-alkyl-3-amino-1H-indazoles followed by reductive deamination. (C) 2013 Elsevier Ltd. All rights reserved.
A Modular and Diastereoselective 5 + 1 Cyclization Approach to N-(Hetero)Aryl Piperidines
作者:Matthew A. Larsen、Elisabeth T. Hennessy、Madeleine C. Deem、Yu-hong Lam、Josep Saurí、Aaron C. Sather
DOI:10.1021/jacs.9b13114
日期:2020.1.15
A new general de novo synthesis of pharmaceutically important N-(hetero)aryl piperidines is reported. This protocol uses a robustly diastereoselective reductive amination/aza-Michael reaction se-quence to achieve rapid construction of complex polysubstituted ringsystems starting from widely available heterocyclic amine nu-cleophiles and carbonyl electrophiles. Notably, the diastereoselec-tivity of
Translating Planar Heterocycles into Three‐Dimensional Analogs by Photoinduced Hydrocarboxylation**
作者:Myriam Mikhael、Sara N. Alektiar、Charles S. Yeung、Zachary K. Wickens
DOI:10.1002/anie.202303264
日期:2023.7.24
We report a new strategy that translates indoles and related heterocycles into diverse 3D analogs by dearomative hydrocarboxylation. The transformation is highly chemoselective, broad in scope, operationally simple, and readily amenable to high-throughput experimentation (HTE).
我们报告了一种新策略,通过脱芳烃加氢羧化将吲哚和相关杂环化合物转化为多种 3D 类似物。该转化具有高度化学选择性、范围广泛、操作简单且易于进行高通量实验(HTE)。