139409-34-0Relevant articles and documents
Heteroaryl radicals in synthesis: Radical cyclisation reactions of 2-bromoindoles
Dobbs, Adrian P.,Jones, Keith,Veal, Ken T.
, p. 2149 - 2160 (1998)
The synthesis and radical cyclisations of 2-bromoindoles carrying an unsaturated N-alkyl group is described.
Syntheses of polybrominated indoles from the red alga Laurencia brongniartii and the brittle star Ophiocoma erinaceus
Liu, Yanbing,Gribble, Gordon W.
, p. 748 - 749 (2002)
The red alga Laurencia brongniartii and brittle star Ophiocoma erinaceus metabolites 2,3,6-tribromo-1-methylindole (1) and 2,3,5,6-tetrabromo-1-methylindole (2) are easily synthesized selectively from 2,3-dibromo-1-methylindole (5), which in turn is prepared from indole (3) in one continuous sequence in 92% yield. Moreover, 2 can be made from both 1 and 5 in 67% and 65% yields, respectively.
Palladium-Catalyzed Domino Cyclization/Phosphorylation of gem-Dibromoolefins with P(O)H Compounds: Synthesis of Phosphorylated Heteroaromatics
Chen, Chen,Ding, Jie,Liu, Liying,Huang, Yujie,Zhu, Bolin
, p. 200 - 205 (2021/10/29)
We presented a palladium-catalyzed domino cyclization/phosphorylation of gem-dibromoolefins, which utilize H-phosphinates and secondary phosphine oxides as the phosphine sources, respectively. A variety of phosphorylated heteroaromatics were obtained in m
Method for preparing 2-bromoindole by using electrochemical micro-channel device
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Paragraph 0021-0053, (2021/01/24)
The invention provides a method for preparing 2-bromoindole by using an electrochemical micro-channel device, which comprises the following steps: assembling an electrochemical micro-channel reactiondevice, and dissolving indole compounds and bromine-cont
Palladium-catalyzed synthesis of 2-cyanoindoles from 2-gem-dihalovinylanilines
Zeidan, Nicolas,Bognar, Sabine,Lee, Sophia,Lautens, Mark
supporting information, p. 5058 - 5061 (2017/11/07)
An efficient Pd(0)-catalyzed synthesis of 2-cyanoindoles from 2-gem-dihalovinylanilines is reported. Few methods have aimed to synthesize these scaffolds which are found in many natural products and have high bioactivity. This protocol features a robust c
Selective access to 3-cyano-1 H -indoles, 9 H -pyrimido[4,5- b ]indoles, or 9 H -Pyrido[2,3- b ]indoles through copper-catalyzed one-pot multicomponent cascade reactions
Li, Bin,Guo, Shenghai,Zhang, Ju,Zhang, Xinying,Fan, Xuesen
, p. 5444 - 5456 (2015/06/16)
Novel and selective synthetic approaches toward indole derivatives via copper-catalyzed one-pot multicomponent cascade reactions of 1-bromo-2-(2,2-dibromovinyl)benzenes with aldehydes and aqueous ammonia are presented. Intriguingly, the concentration of a
Application of nanoparticle mediated N-arylation of amines for the synthesis of pharmaceutical entities using vit-E analogues as amphiphiles in water
Kumar, Atul,Bishnoi, Ajay Kumar
, p. 20516 - 20520 (2015/03/30)
The first CuI-nanoparticle catalyzed inter and intramolecular N-arylation of amines using vitamin E analogues (TPGS) as amphipiles has been developed in water. Application of this transition metal-amphiphile C-N bond formation methodology is further extended for the synthesis of substituted indoles, bioactive natural product tryptanthrin and intermediates of pharmaceutical entities such as imatinib, nilotinib, selective D3 agonist/antagonist ligands, and oxacarbazepine. This journal is
Microwave irradiated synthesis of 2-bromo(chloro)indoles via intramolecular cyclization of 2-(gem-dibromo(chloro)vinyl)anilines in the presence of TBAF under metal-free conditions
Wang, Min,Li, Pinhua,Chen, Wei,Wang, Lei
, p. 26918 - 26923 (2014/07/21)
2-Bromo(chloro)indoles were readily and efficiently prepared through TBAF-promoted intramolecular cyclization of 2-(gem-dibromo(chloro)vinyl)anilines in excellent yields under metal-free and microwave irradiation conditions. This journal is the Partner Organisations 2014.
The facile synthesis of 2-bromoindoles via Cs2CO 3-promoted intramolecular cyclization of 2-(gem-dibromovinyl)anilines under transition-metal-free conditions
Li, Pinhua,Ji, Yong,Chen, Wei,Zhang, Xiuli,Wang, Lei
, p. 73 - 78 (2013/03/29)
2-Bromoindoles were readily prepared through a facile Cs2CO 3-promoted intramolecular cyclization of 2-(gem-bromovinyl)-N- methylsulfonylanilines in excellent yields under transition-metal-free conditions. This methodology could be extended to the synthesis of corresponding 2-chloroindoles. The reaction mechanism suggested that cyclization occurs through a key intermediate, phenylethynyl bromide, followed by cyclization in one-pot. The Royal Society of Chemistry.
Stereoselective synthesis of spirocyclic oxindoles based on a one-pot Ullmann coupling/Claisen rearrangement and its application to the synthesis of a hexahydropyrrolo[2,3-b]indole alkaloid
Miyamoto, Hiroshi,Hirano, Tomohiro,Okawa, Yoichiro,Nakazaki, Atsuo,Kobayashi, Susumu
supporting information, p. 9481 - 9493 (2013/10/08)
An efficient and convenient approach to the synthesis of spirocyclic oxindoles from iodoindoles has been developed. The most striking feature of this approach is that the sequential intramolecular Ullmann coupling and Claisen rearrangement proceeds in a one-pot manner to afford 3-spiro-2-oxindoles in good yield with excellent diastereoselectivity. Application of this one-pot reaction to chiral non-racemic tertiary alcohol substrates resulted in complete chirality transfer to the spirocyclic quaternary carbon. Using this method, asymmetric total synthesis of (-)-debromoflustramine B was accomplished.