SUBSTITUTED IMIDAZOPYRIMIDINES AND TRIAZOLOPYRIMIDINES
申请人:Siegel Stephan
公开号:US20100113441A1
公开(公告)日:2010-05-06
The invention relates to substituted imidazopyrimidines and triazolopyrimidines, to methods for the production thereof, and to the use of same for producing medicaments for the treatment and/or prophylaxis of diseases, especially haematological diseases, preferably leucopenia and neutropenia.
Electrochemical generation of alkyl and aryl isocyanides
作者:Antoio Guirado、Andrés Zapata、Jesús L. Gómez、Luis Trabalón、Jesús Gálvez
DOI:10.1016/s0040-4020(99)00509-8
日期:1999.7
An efficient and widely applicable reagent-free method for the synthesis of alkyl and arylisocyanides has been established. The electrochemical reduction of alkyl and aryl carbonimidoyl dichlorides under constant cathode potential leads to the corresponding isocyanides in almost quantitative yields. The availability of the starting materials, the mildness of the reaction conditions as well as the
Silver-Catalyzed Cross-Coupling of Isocyanides and Active Methylene Compounds by a Radical Process
作者:Jianquan Liu、Zhenhua Liu、Peiqiu Liao、Lin Zhang、Tao Tu、Xihe Bi
DOI:10.1002/anie.201504254
日期:2015.9.1
Isocyanides are versatile building blocks, and have been extensively exploited in CH functionalization reactions. However, transition‐metal‐catalyzed direct CH functionalization reactions with isocyanides suffer from over‐insertion of isocyanides. Reported herein is a radical coupling/isomerization strategy for the cross‐coupling of isocyanides with activemethylenecompounds through silver‐catalysis
silver‐catalyzed chemoselective [4+2] annulation of aryl and heteroaryl isocyanides with α‐substituted isocyanoacetamides was developed for the facile and efficient synthesis of 2‐aminoquinolones, naphthyridines, and phenanthrolines. A mechanism for this multistep domino reaction is proposed on the basis of a 13C‐labeling experiment, according to which an unprecedented chemoselective heterodimerization
Copper-catalyzed synthesis of arylcarboxamides from aldehydes and isocyanides: the isocyano group as an N1 synthon
作者:Jian-Quan Liu、Xuanyu Shen、Zhenhua Liu、Xiang-Shan Wang
DOI:10.1039/c7ob01449j
日期:——
An interesting radical coupling reaction of aromatic aldehydes with isocyanides was disclosed for the synthesis of amides catalyzed by copper. According to the experimental results and mechanistic study, the isocyano group acted as an N1 synthon rather than exhibiting the carbene-like reactivity, exploiting a new reactivityprofile of isocyanides.