Synthesis of the 4,7-Dibromo Derivative of Highly Electron-Deficient [1,2,5]Thiadiazolo[3,4-<i>d</i>
]pyridazine and Its Cross-Coupling Reactions
作者:Timofey N. Chmovzh、Ekaterina A. Knyazeva、Ludmila V. Mikhalchenko、Ivan S. Golovanov、Stanislav A. Amelichev、Oleg A. Rakitin
DOI:10.1002/ejoc.201800961
日期:2018.11.8
The 4,7‐dibromo derivative of highly electron‐deficient [1,2,5]thiadiazolo[3,4‐d]pyridazine was synthesized. Conditions for the selective formation of both mono‐ and di‐aryl(hetaryl)ated [1,2,5]thiadiazolo[3,4‐d]pyridazines by palladium‐catalysed cross‐coupling reactions were found.
合成了高度缺电子的[1,2,5]噻二唑[3,4- d ]哒嗪的4,7-二溴衍生物。发现了通过钯催化的交叉偶联反应选择性形成单和二芳基(杂芳基)化的[1,2,5]噻二唑[3,4- d ]哒嗪的条件。