13637-37-1Relevant articles and documents
Photocatalytic Redox-Neutral Approach to Diarylmethanes
Guo, Guozhe,Yuan, Yong,Bao, Xiazhen,Cao, Xuehui,Sang, Tongzhi,Wang, Jiayuan,Huo, Congde
, p. 6936 - 6940 (2021)
We report a visible-light induced redox-neutral decarboxylative cross coupling reaction of indole-3-acetic acid NHPI esters with indoles using a Ru photosensitizer to deliver a wide range of symmetrical and unsymmetrical 3,3′-bisindolylmethane derivatives. Furthermore, the reaction is readily adapted to the preparation of a wide variety of diarylmethane derivatives.
Synthesis of symmetric and non-symmetric indolo[2,3-c]carbazole derivatives: Preparation of indolo[2,3-c]pyrrolo[3,4-a]carbazoles
Desarbre, Eric,Bergman, Jan
, p. 2009 - 2016 (1998)
Symmetric and non-symmetric indolo[2,3-c]carbazoles have been prepared from 3,3′-biindolyls 9a-d by two strategies; step by step, by thermal electrocyclic reaction, or directly. Indolo[2,3-c]pyrrolo-[3,4-a]carbazoles 28aa-db, a new class of indolopyrroloc
Rebeccamycin analogues from indolo[2,3-c]carbazole
Voldoire, Aline,Sancelme, Martine,Prudhomme, Michelle,Colson, Pierre,Houssier, Claude,Bailly, Christian,Leonce, Stephane,Lambel, Stephanie
, p. 357 - 365 (2001)
Glycosylated indolocarbazoles related to the antibiotic rebeccamycin represent an important series of antitumor drugs. In the course of structure-activity relationship studies, we report the synthesis of two new derivatives containing an indolo[2,3-c]carb
Synthetic approaches to 3,3'-biindolyl and 3,3'-biindazolyl derivatives
Nakhai, Azadeh,Bergman, Jan
, p. 309 - 318 (2014)
In this paper new syntheses of 3,3'-biindolyl and 3,3'-biindazolyl derivatives are described. Formation of 3,3'-biindolyl derivatives by oxidative coupling of N-acetylindole with TeCl4 gave a good yield, while attempt to use the same reaction conditions for synthesis of 3,3'-biindazolyl derivatives failed. However, conversion of 3-haloindazole derivatives to its trimethylstannane derivative, followed by palladium-catalyzed Stille cross-coupling reaction, resulted in formation of 3,3'-biindazolyl derivatives.
Indole carbazole compounds and its preparation method and application
-
, (2018/02/04)
The invention discloses an indole carbazole compound which is characterized by having a structure as shown in a formula I, a formula II, a formula III or a formula IV described in the specification. The indole carbazole has anti-TMV (tobacco mosaic virus) activity.
Double Palladium Catalyzed Reductive Cyclizations. Synthesis of 2,2′-, 2,3′-, and 3,3′-Bi-1H-indoles, Indolo[3,2-b]indoles, and Indolo[2,3-b]indoles
Ansari, Nurul H.,Dacko, Christopher A.,Akhmedov, Novruz G.,S?derberg, Bj?rn C. G.
, p. 9337 - 9349 (2016/10/14)
A palladium catalyzed, carbon monoxide mediated, double reductive cyclization of 1,4-, 1,3-, and 2,3-bis(2-nitroaryl)-1,3-butadienes to afford 2,2′-, 2,3′-, and 3,3′-biindoles, respectively, was developed. In contrast, reductive cyclizations of 1,2-bis(2-nitroaryl)ethenes were nonselective, affording mixtures of monocyclized indoles, indolo[3,2-b]indole, indolo[1,2-c]quinazolin-6(5H)-ones, and 5,11-dihydro-6H-indolo[3,2-c]quinolin-6-ones. Nonselective product formation was also observed from reductive cyclization of 1,1-bis(2-nitroaryl)ethenes, producing indolo[2,3-b]indoles and indolo[2,3-c]quinolin-6-ones. Carbon monoxide insertion to give the carbonyl containing products was the major or sole reaction path starting from 1,1- or 1,2-bis(2-nitroaryl)ethenes.
An electroluminescent compound and an electroluminescent device comprising the same
-
Paragraph 0101; 0107-0110, (2016/10/07)
The present invention relates to an organic light emitting compound, which is used in an organic electroluminescent device and represented by chemical formula 1. When the compound is used as a phosphorescent host compound in a hole transportable layer or a luminous layer, it is possible to embody an organic electroluminescent device with excellent luminescent properties such as driving voltage, luminance, and long lifespan.COPYRIGHT KIPO 2016
One-pot synthesis of camalexins and 3,3′-biindoles by the Masuda borylation-Suzuki arylation (MBSA) sequence
Tasch, Boris O. A.,Antovic, Dragutin,Merkul, Eugen,Mueller, Thomas J. J.
, p. 4564 - 4569 (2013/07/26)
The Masuda borylation/Suzuki arylation (MBSA) sequence starting from N-protected 3-iodoindoles has successfully been extended to the coupling of five-membered heterocycles and indoles in the arylation step, which could not be achieved with previously developed MBSA methods. By this approach the one-pot nature of the method as well as the use of a simple catalyst system has been retained. The applicability of the method has been demonstrated by the facile synthesis of camalexins and 3,3′-biindoles, compounds of special interest due to their pronounced antifungal, antimicrobial and cytotoxic activities. The Masuda borylation/Suzuki arylation sequence furnishes in a concise one-pot manner camalexins and 3,3′-biindoles, compounds that show pronounced antifungal, antimicrobial, and cytotoxic activities. Copyright
An unprecedented route for the synthesis of 3,3′-biindoles by reductive cyclization of 3-[2-Nitro-1-(2-nitrophenyl)ethyl]-1H-indoles mediated by iron/ acetic acid
Ramesh, Chintakunta,Kavala, Veerababurao,Kuo, Chun-Wei,Raju, B. Rama,Yao, Ching-Fa
supporting information; experimental part, p. 3796 - 3801 (2010/09/10)
An unprecedented route for the synthesis of 3,3′-biindoles is developed. Both symmetrical and unsymmetrical 3,3′-biindoles could be generated by this method. Mild conditions, high yields of the products, and environmentally acceptable reagent are the meri
Oxidative dimerization of N-protected and free indole derivatives toward 3,3′-biindoles via Pd-catalyzed direct C-H transformations
Li, Yang,Wang, Wen-Hua,Yang, Shang-Dong,Li, Bi-Jie,Feng, Chun,Shi, Zhang-Jie
supporting information; experimental part, p. 4553 - 4555 (2010/10/19)
An oxidative homo dimerization of N-protected and free indole derivatives toward bioactive 3,3′-linked biindolyl scaffolds via Pd-catalyzed direct C-H transformations was first successfully demonstrated.