Efficient Synthesis of the Indoloazocine Framework via Intramolecular Alkyne Carbocyclization
摘要:
A microwave-assisted protocol based on an Hg(OTf)(2) catalyzed intramolecular alkyne carbocyclization reaction was developed for selective construction of the indoloazocine core.
Synthesis of Azocino[5,4-<i>b</i>]indoles<i>via</i>Gold-Catalyzed Intramolecular Alkyne Hydroarylation
作者:Vsevolod A. Peshkov、Olga P. Pereshivko、Erik V. Van der Eycken
DOI:10.1002/adsc.201200305
日期:2012.10.8
An efficient procedure for the synthesis of the azocino[5,4-b]indole framework is presented, relying on a cationic gold-catalyzed intramolecular alkyne hydroarylation of propargylic amides derived from various tryptamines and 3-substituted 2-propynoic acids. The triphenylphosphinegold(I) chloride/silver(I) triflate catalytic system was found to be superior to our previously described mercury(II) triflate
提出了一种高效的合成偶氮基[5,4- b ]吲哚骨架的方法,该方法依赖于阳离子金催化的分子内炔烃的芳基氢芳基化反应,衍生自各种色胺和3-取代的2-丙酸。发现三苯基膦金(I)氯化物/三氟甲磺酸银(I)催化系统优于我们先前描述的三氟甲磺酸汞(II)催化剂,因此该方法的底物范围得到了大大扩展。
Facile Formation of Eight‐membered Rings of Indoloazocine Framework
<i>via</i>
Intramolecular Oxidative Heck Cyclization
作者:Peng Zhao、Zhu‐yan Huang、Chun‐shen Zhao、Sheng Liu
DOI:10.1002/jhet.3378
日期:2019.1
A facile method has been developed for the synthesis of indoloazocine framework. Through an oxidative Heck intramolecularcyclization of acrylated tryptamide derivatives, a series of azocino[5,4‐b] indolone derivatives were synthesized.
已经开发了一种简便的方法来合成吲哚唑嗪骨架。通过丙烯酸类色胺衍生物的氧化Heck分子内环化反应,合成了一系列的azocino [5,4- b ]吲哚酮衍生物。