已开发出一种高效、无催化剂和添加剂、可见光驱动的自由基 C3-H 烷基化喹喔啉-2(1 H )-酮衍生物。该反应利用烷基-NHP-酯作为烷基自由基供体和喹喔啉-2(1 H )-酮衍生物作为烷基自由基受体。操作简单的协议在温和的反应条件下工作,并容忍各种功能组。此外,该方法的合成效用已成功用于合成生物学相关的 C3-烷基取代喹喔啉-2(1 H )-一衍生物
Merging Quinoxalin-2(1H)-ones Excitation with Cobaloxime Catalysis: C3 Alkylation of Quinoxalin-2(1H)-ones with Unactivated Alkyl Iodides and Carboxylic Acids under Light
作者:Shuo Cao、Jia-Xin Chen、Xiu-Li Zhang、Xian Song、Wen-Yu Song、Yu-Sheng Wu、Yan-Hui Zhang、Zan Liu
DOI:10.1021/acs.orglett.4c02021
日期:2024.7.12
quinoxalin-2(1H)-ones with alkyl carboxylic acids and alkyliodides by quinoxalin-2(1H)-one excitation and cobaloxime catalysis. Primary, secondary, and tertiary alkyliodides and carboxylic acids all could be efficiently transferred into target products with excellent functional group tolerance. Mechanism studies reveal that the quinoxalin-2(1H)-one derivatives could be directly excited and yield alkyl carbon radicals
Nishio, Takehiko, Journal of the Chemical Society. Perkin transactions I, 1990, p. 565 - 570
作者:Nishio, Takehiko
DOI:——
日期:——
Construction of C(
<i>sp</i>
<sup>2</sup>
)−C(
<i>sp</i>
<sup>3</sup>
) Bond between Quinoxalin‐2(1
<i>H</i>
)‐ones and
<i>N</i>
‐Hydroxyphthalimide Esters via Photocatalytic Decarboxylative Coupling
作者:Zhiyang Yan、Bin Sun、Xun Zhang、Xiaohui Zhuang、Jin Yang、Weike Su、Can Jin
DOI:10.1002/asia.201900904
日期:2019.10
AbstractA novel visible‐light‐driven decarboxylative coupling of alkyl N‐hydroxyphthalimide esters (NHP esters) with quinoxalin‐2(1H)‐ones has been developed. This C(sp2)−C(sp3) bond‐forming transformation exhibits excellent substrate generality with respect to both the coupling partners. Of note, a series of 3‐primary alkyl‐substituted quinoxalin‐2(1H)‐ones that were difficult to synthesize by previous methods could be obtained in moderate to excellent yields. Additionally, the mild conditions, easy availability of substrates, wide functional group tolerance and operational simplicity make this protocol practical in the synthesis of 3‐alkylated quinoxalin‐2(1H)‐ones.
Nishio, Takehiko; Omote, Yoshimori, Journal of the Chemical Society. Perkin transactions I, 1987, p. 2611 - 2616
作者:Nishio, Takehiko、Omote, Yoshimori
DOI:——
日期:——
NISHIO, TAKEHIKO;OMOTE, YOSHIMORI, J. CHEM. SOC. PERKIN TRANS.,(1987) N 12, 2611-2615