Assembly of substituted phenanthridines via a cascade palladium-catalyzed coupling reaction, deprotection and intramolecular cyclization

Assembly of substituted phenanthridines via a cascade palladium-catalyzed coupling reaction, deprotection and intramolecular cyclization
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通过级联钯催化偶联反应、脱保护和分子内环化组装取代菲啶

DOI:
10.1039/c6ra00249h
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发表时间:
2016-02
期刊:
影响因子:
3.9
通讯作者:
Yin Dali
Yin Dali
中科院分区:
化学3区
文献类型:
--
作者:
Ge Jun;Wang Xiaojian;Liu Tianqi;Shi Zeyu;Xiao Qiong;Yin Dali

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介绍了一种一锅法合成取代菲啶类化合物的通用方法的发现和发展。在Pd(PPh 3)4存在下,可获得的前体与2-(Boc-氨基)苯硼酸频哪醇酯发生Suzuki交叉偶联反应,然后自发地进行脱保护和分子内缩合,一步合成相应的菲啶类化合物。该反应具有广泛的底物范围,具有各种官能团,并且以良好的产率获得了相应的产物。
The discovery and development of a general method for the one-pot synthesis of substituted phenanthridines is presented. In the presence of Pd(PPh3)4, accessible precursors undergo a Suzuki cross-coupling reaction with 2-(Boc-amino)benzeneboronic acid pinacol ester and then spontaneously undergo deprotection and intramolecular condensation to form the corresponding phenanthridines in one step. This reaction has a wide range of substrates with various functional groups, and the corresponding products have been obtained in good yields.
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