5883-83-0Relevant academic research and scientific papers
Regioselective mercury(I)/palladium(II)-catalyzed single-step approach for the synthesis of imines and 2-substituted indoles
Delgado, Francisco,Gutiérrez, Rsuini U.,Hernández-Montes, Mayra,Mendieta-Moctezuma, Aarón,Tamariz, Joaquín
, (2021/07/21)
An efficient synthesis of ketimines was achieved through a regioselective Hg(I)-catalyzed hydroamination of terminal acetylenes in the presence of anilines. The Pd(II)-catalyzed cycliza-tion of these imines into the 2-substituted indoles was satisfactorily carried out by a C-H acti-vation. In a single-step approach, a variety of 2-substituted indoles were also generated via a Hg(I)/Pd(II)-catalyzed, one-pot, two-step process, starting from anilines and terminal acetylenes. The arylacetylenes proved to be more effective than the alkyl derivatives.
Pd-tBuONO Cocatalyzed Aerobic Indole Synthesis
Ning, Xiao-Shan,Liang, Xin,Hu, Kang-Fei,Yao, Chuan-Zhi,Qu, Jian-Ping,Kang, Yan-Biao
, p. 1590 - 1594 (2018/04/30)
A Pd-tBuONO co-catalyzed scalable and practical synthesis of indoles with molecular oxygen as terminal oxidant is developed. Either terminal or internal 2-vinylanilines could be smoothly converted to desired indoles under one general condition. This method has been evaluated in the large scale synthesis of indomethacin and a potential anti-breast cancer drug candidate 1. (Figure presented.).
Preparing method of bazedoxifene derivative
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Paragraph 0030; 0031; 0032; 0033; 0034-0036; 0058-0062, (2017/09/02)
The invention discloses a synthesis method of a bazedoxifene derivative. According to the preparing method of the bazedoxifene derivative, p-anisidine is adopted as a raw material, and through a six-step reaction, the synthesis of the bazedoxifene derivat
Method for cyclization reaction to synthesize indole through co-catalysis of palladium-organic nitrite
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Paragraph 0067, (2017/09/18)
The invention discloses a method for cyclization reaction to synthesize indole through co-catalysis of palladium-organic nitrite. The method is characterized by comprising the steps of mixing at the molar ratio of a palladium compound to a 2-vinyl aniline
Access to 2-Arylindoles via Decarboxylative C?C Coupling in Aqueous Medium and to Heteroaryl Carboxylates under Base-Free Conditions using Diaryliodonium Salts
Arun, Velladurai,Pilania, Meenakshi,Kumar, Dalip
supporting information, p. 3345 - 3349 (2016/12/14)
Easily accessible heteroaromatic carboxylic acids and diaryliodonium salts were successfully employed to construct valuable 2-arylindoles and heteroaryl carboxylates in a regioselective fashion. C2-arylated indoles were produced using a Pd-catalyzed decarboxylative strategy in water without any base, oxidant, or ligand. Heteroaryl carboxylates were prepared under metal and base-free conditions. This protocol was successfully utilized to synthesize Paullone, a cyclin-dependent kinase (CDK) inhibitor.
Pd(II)/Bu4NBr/DMSO catalytic system for practical synthesis of indoles and pyrroles from imines through aerobic dehydrogenative cyclization
Tan, Wei Wen,Hou, Xiaoya,Yoshikai, Naohiko
, p. 2727 - 2733 (2015/05/05)
N-Aryl- and N-allylimines derived typically from substituted acetophenones undergo palladium(II)-catalyzed dehydrogenative cyclization reactions in the presence of tetrabutylammonium bromide and molecular oxygen in DMSO to afford indole and pyrrole deriva
PROCESSES FOR PREPARING INDOLES
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Paragraph 00102, (2013/07/05)
Methods for the synthesis of an indole in provided. Methods comprise oxidizing a N-aryl imine in the presence of a palladium-based catalyst, an oxidant, and a solvent.
Palladium-catalyzed aerobic oxidative cyclization of N-aryl imines: Indole synthesis from anilines and ketones
Wei, Ye,Deb, Indubhusan,Yoshikai, Naohiko
supporting information; experimental part, p. 9098 - 9101 (2012/07/14)
We report here an operationally simple, palladium-catalyzed cyclization reaction of N-aryl imines, affording indoles via the oxidative linkage of two C-H bonds under mild conditions using molecular oxygen as the sole oxidant. The process allows quick and atom-economical assembly of indole rings from inexpensive and readily available anilines and ketones and tolerates a broad range of functional groups.
Modular construction of 2-substituted benzo[b]furans from 1,2-Dichlorovinyl ethers
Geary, Laina M.,Hultin, Philip G.
supporting information; experimental part, p. 5478 - 5481 (2010/02/27)
"Chemical Equation Presented" (E)-1,2-Dichlorovinyl ethers and amides are easily accessible from trichloroethylene via nucleophilic addition across in situ synthesized dlchloroacetylene. A one-pot, sequential Suzukl-Miyaura coupling/intramolecular direct
