Isoquinolone Synthesis through S<sub>N</sub>Ar Reaction of 2-Halobenzonitriles with Ketones Followed by Cyclization
作者:Muhammad Shareef Mayo、Xiaoqiang Yu、Xiujuan Feng、Yoshinori Yamamoto、Ming Bao
DOI:10.1021/acs.joc.5b00357
日期:2015.4.17
An efficient method for the synthesis of isoquinolones through base KOtBu-promoted SNAr reaction of 2-halobenzonitriles with ketones followed by Lewis acid Cu(OAc)2-catalyzed cyclization is described. Isoquinolone derivatives were obtained in satisfactory to good yields.
描述了一种有效的方法,该方法通过2-卤代苄腈与酮的碱式KO t Bu促进的S N Ar反应,然后由路易斯酸Cu(OAc)2催化的环化来合成异喹诺酮。以令人满意的至良好的产率获得了异喹诺酮衍生物。
Nickel‐Catalyzed Tandem Reaction of Functionalized Arylacetonitriles with Arylboronic Acids in 2‐MeTHF: Eco‐Friendly Synthesis of Aminoisoquinolines and Isoquinolones
example of the nickel-catalyzed tandem addition/cyclization of 2-(cyanomethyl)benzonitriles with arylboronic acids in 2-MeTHF has been developed, which provides the facile synthesis of aminoisoquinolines with good functional group tolerance under mild conditions. This chemistry has also been successfully applied to the synthesis of isoquinolones by the tandemreaction of methyl 2-(cyanomethyl)benzoates
Palladium-Catalyzed Oxidative Cyclocarbonylation of Isoquinolones with CO via C−H/N−H Bond Cleavage: Easy Access to Isoindolo[2,1-<i>b</i>
]isoquinoline-5,7-dione Derivatives
作者:Shenghai Guo、Fang Wang、Lincong Sun、Xinying Zhang、Xuesen Fan
DOI:10.1002/adsc.201800347
日期:2018.7.4
An efficient and practical synthesis of isoindolo[2,1‐b]isoquinoline‐5,7‐diones through Pd‐catalyzed C−H activation/carbonylative annulation of isoquinolones with CO (1 atm) is presented. Deuterium‐labeling experiments revealed that the aryl C(sp2)−H bondactivation might be the rate‐determining step. More interestingly, the title compounds could also be prepared directly from the cascade reaction
提出了一种通过Pd催化的CH活化/异喹啉酮与CO(1 atm)羰基环化反应有效合成异吲哚并[2,1 – b ]异喹啉-5,7-二酮的方法。氘标记实验表明,芳基C(sp 2)-H键的活化可能是决定速率的步骤。更有趣的是,标题化合物也可以直接由N-甲氧基苯甲酰胺和内部炔烃(作为异喹诺酮的前体)在一氧化碳的大气压下,通过Rh / Pd中继催化,以用户友好的方式级联反应制备。。
Synthesis of Functionalized Isoquinolin-1(2<i>H</i>)-ones by Copper-Catalyzed α-Arylation of Ketones with 2-Halobenzamides
Copper is key: A concise route to isoquinolin‐1(2H)‐ones from simple and readily available starting materials is provided by an efficient copper‐catalyzed annulation of ketones with 2‐halobenzamides. The method is applicable to a wide range of ketones containing different functional groups furnishing the products in moderate to excellent yields.