59411-02-8Relevant articles and documents
Lithium-Promoted Cycloaddition of Indole-2,3-dienolates and Carbon Disulfide as a One-Pot Route to Thiopyrano[4,3- b]indole-3(5 H)-thiones
Suzdalev, Konstantin F.,Vyalyh, Julia V.,Tkachev, Valery V.,Lysenko, Ekaterina A.,Burov, Oleg N.,Lisovin, Anton V.,Kletskii, Mikhail E.,Kurbatov, Sergey V.
, p. 11698 - 11707 (2021/08/24)
A new approach for the annulation of a thiopyrane ring to an indole core under mild conditions was developed. Treating 2-methyl-3-acylindoles with lithium diisopropyl amide leads to the elimination of a proton from the 2-methyl group. The lithium indole-2,3-dienolates obtained were found to react with CS2 to give the corresponding thiopyrano[4,3-b]indole-3(5H)-thiones. The mechanism represents a stepwise addition through ion-pair formation, according to PCM/B3LYP/6-311++G**, PBE1PBE/6-311++G**, and MP2//HF/6-311++G*? quantum chemical calculations. AIM calculations revealed the essential role of the Li atom at all stages of the process.
Synthesis of carbonylated heteroaromatic compounds: Via visible-light-driven intramolecular decarboxylative cyclization of o -alkynylated carboxylic acids
Gao, Fei,Wang, Jiu-Tao,Liu, Lin-Lin,Ma, Na,Yang, Chao,Gao, Yuan,Xia, Wujiong
, p. 8533 - 8536 (2017/08/04)
An efficient strategy for the easy access to carbonylated heteroaromatic compounds has been developed via a visible-light-promoted intramolecular decarboxylative cyclization reaction of o-alkynylated carboxylic acids. This method is characterized by its b
Decarboxylative/decarbonylative C3-acylation of indoles: Via photocatalysis: A simple and efficient route to 3-acylindoles
Shi, Qing,Li, Pinhua,Zhu, Xianjin,Wang, Lei
, p. 4916 - 4923 (2016/11/04)
A simple and efficient strategy for the preparation of 3-acylindoles via visible-light promoted C3-acylation of free (NH)- and N-substituted indoles with α-oxocarboxylic acids was developed. The reaction tolerates a wide range of functional groups, and the corresponding 3-acylindoles were obtained in high yields under mild conditions.