Domino reactions of cyclic enaminones leading to selective synthesis of pentacyclic indoles and its functionalization
作者:Wei Fan、Yan-Rong Li、Qun Li、Bo Jiang、Guigen Li
DOI:10.1016/j.tet.2016.06.058
日期:2016.8
established, providing selective protocol to pentacyclic indoles with different substituted patterns (up to 50 examples). Both substitutions on the cyclic enaminone ring and reaction temperatures showed obvious impact on the reaction pathways. For instance, selective allylic hydroxylation and allylic esterification of in situ generated indoles depend on reaction temperatures. With special substituents
Silver-catalyzed tandem nucleophilic addition/cycloisomerization of ortho-alkynylbenzaldehydes: Regioselective synthesis of functionalized 1H-isochromene derivatives
作者:Fang-Hui Li、Jian Li、Shun-Yi Wang、Shun-Jun Ji
DOI:10.1016/j.tet.2017.07.051
日期:2017.9
An efficient silver-catalyzed domino cycloisomerization reaction for regioselective assembly of 1H-isochromene derivatives from o-alkynylaryl aldehydes with enaminones as the external nuclephiles is developed. This protocol affords isochromene derivatives in moderate to good yields under simple and mild reaction conditions.
Chemoselective Pd-Catalyzed Isocyanide Insertion Reaction of Enaminones by C-H Functionalization: Hydrolysis or Cyclization through 1,3-Palladium Migration
作者:Zheng-Yang Gu、Xiang Wang、Jia-Jia Cao、Shun-Yi Wang、Shun-Jun Ji
DOI:10.1002/ejoc.201500458
日期:2015.7
A chemoselective palladium-catalyzed isocyanideinsertionreaction of enaminones was developed. Amide derivatives were synthesized by this C–Hfunctionalization and subsequent hydrolysisreactions. 4-Aminoquinoline derivatives were prepared by this C–Hfunctionalization, which includes a 1,3-palladiummigration in the process.
Multicomponent, one-pot and expeditious synthesis of highly substituted new spiro[indolo-3,10′-indeno[1,2-b]quinolin]-2,4,11′-triones under micellar catalytic effect of CTAB in water
作者:Animesh Mondal、Mike Brown、Chhanda Mukhopadhyay
DOI:10.1039/c4ra04918g
日期:——
A convenient multicomponent reaction strategy for the synthesis of highly substitutednew spiro[indolo-3,10′-indeno[1,2-b]quinolin]-2,4,11′-triones has been developed under CTAB/H2O system (easily recovered and recycled) to provide spiro products with excellent yields. The most exciting feature of this methodology is its mechanism involving the unusual ring opening of an isatin moiety followed by recyclisation
在CTAB / H 2 O体系下,开发了一种方便的多组分反应策略,用于合成高度取代的新螺[indolo-3,10'-茚并[1,2- b ]喹啉] -2,4,11'-三酮。(易于回收和再循环),以提供高产量的螺环产品。该方法学最令人兴奋的特征是其机制涉及伊斯兰素部分的异常开环,然后进行环化。
Cu2O-Promoted cascade reaction of O-halobenzoate and enaminones for the synthesis of isoquinolinone derivatives
作者:Yang Liang、Rui Wang
DOI:10.1016/j.tetlet.2022.154287
日期:2023.1
A practical Cu-catalyzed cascade cyclization of o-halobenzoate with enaminones to construct isoquinolinone derivatives is described. The process involves a Cu-catalyzed intermolecular CC coupling and intramolecular azacyclization, wherein a wide range of enaminones could be tolerated.
描述了一种实用的 Cu 催化的邻卤代苯甲酸酯与烯胺酮的级联环化以构建异喹啉酮衍生物。该过程涉及 Cu 催化的分子间 C C 偶联和分子内氮杂环化,其中可以耐受多种烯胺酮。