Synthesis of cyanoalkyl indolines through cyanoalkylarylation of N-allyl anilines with alkyl nitriles under metal-free and neutral conditions
作者:Deqiang Liang、Xuemei Song、Lichun Xu、Yitong Sun、Ying Dong、Baoling Wang、Weili Li
DOI:10.1016/j.tet.2019.05.018
日期:2019.6
An α-C(sp3)−Hfunctionalization of alkylnitriles under metal-free and neutral conditions is presented. In the presence of di-tert-butyl peroxide (DTBP), N-allyl anilines underwent exo-selective cyanoalkylation/cyclization cascade, providing a direct access to 3-cyanoalkyl indolines. Previously, a transition-metal catalyst and/or a strong base were generally required to activate nitrilic α-C−H bonds
Copper‐Catalyzed Alkylarylation of Unactivated Alkenes: Synthesis of 3‐Alkyl Indolines from
<i>N</i>
‐Allyl Anilines and Alkanes
作者:Deqiang Liang、Bojie Huo、Yongrui Dong、Yan Wang、Ying Dong、Baoling Wang、Yinhai Ma
DOI:10.1002/asia.201900176
日期:2019.6.3
C(sp3)−H functionalization of simple alkanes with unactivatedalkenes is presented. In the presence of a copper salt and di‐tert‐butyl peroxide (DTBP), N‐allyl anilines underwent exo‐selective alkylation/cyclization cascade with unactivated alkenic bonds as radical acceptors and simple alkanes as radical precursors, providing a direct access to 3‐alkyl indolines. The present protocol features simple operation
Silver-Catalyzed Radical Arylphosphorylation of Unactivated Alkenes: Synthesis of 3-Phosphonoalkyl Indolines
作者:Deqiang Liang、Dandan Ge、Yanping Lv、Wenzhong Huang、Baoling Wang、Weili Li
DOI:10.1021/acs.joc.8b00450
日期:2018.4.20
A silver-catalyzed phosphorylation/cyclization cascade of N-allyl anilines was developed, allowing direct access to 3-phosphonoalkyl indolines, which were previously obtainable only via tedious procedures under harsh/toxic conditions. The unactivated double bond serves as the radical acceptor, whereas H-phosphonates or -phosphine oxides act as the radical precursor. This protocol features simple operation
Alkylarylation of <i>N</i>-allylbenzamides and <i>N</i>-allylanilines with simple ethers for the direct construction of ether substituted dihydroisoquinolinones and indolines
作者:Yiting Li、Song Sun、Jiang Cheng、Jin-Tao Yu
DOI:10.1039/c9ob02565k
日期:——
A radical-initiated cascade addition and cyclization of N-allylbenzamides with simple ethers to construct ether-substituted dihydroisoquinolinones was performed in the presence of CuI. The cleavage of the sp3 C-H bond in ether and the sp2 C-H bond in phenyl was involved in this reaction. Moreover, the arylalkylation of N-allylanilines was also realized under similar reaction conditions, providing