602-04-0Relevant articles and documents
Transformations of 6,7-difluoroquinoxaline with Indoles: Synthesis of Indole-Substituted 6,7-difluoroquinoxalines and Tris(indol-3-yl)methane Derivatives
Azev, Yu. A.,Ermakova,Ezhikova,Kodess,Berseneva,Kovalev
, (2017)
6,7-Difluoroquinoxaline (1) reacted with 1- and 2-methylindoles (2a and 2b) with heating in AcOH to give products from substitution of H in the heterocyclic fragment (3a and 3b) and tris(indol-3-yl)methane derivatives (4a and 4b).
Efficient and convenient method for the synthesis of symmetrical triindolylmethanes catalyzed by iodine
Zhang, Zhan-Hui,Lin, Jin
, p. 209 - 215 (2007)
Indoles reacted with triethyl orthoformate in the presence of a catalytic amount of iodine at room temperature to give the corresponding symmetrical triindolylmethanes (TIMs) in good to high yields. Copyright Taylor & Francis Group, LLC.
C-C bond cleavage: Metal-free-catalyzed reaction of Betti bases with various heterocycles under microwave irradiation
Deb, Mohit L.,Saikia, B.-Shriya,Borah, Kongkona,Baruah, Pranjal K.
supporting information, p. 1940 - 1946 (2016/11/25)
The reaction of Betti bases with various heterocycles in the presence of p-toluenesulphonic acid (PTSA) under microwave irradiation gives bis(heterocycle)methanes through benzyl transfer. The reaction proceeds via the cleavage of C-N bond followed by C-C
Eco-friendly synthesis of condensed nitrogen heterocycles: A brief experience from our group
Chakrabarty, Manas,Mukherji, Ajanta
, p. 1681 - 1694 (2014/01/17)
In order to develop eco-friendly syntheses of condensed nitrogen heterocycles, solvent-free syntheses on solid acidic catalysts and aqueous reactions using a phase transfer catalyst (PTC) were successfully carried out. The catalysts used were (i) TLC-grade silica gel G (SiO2), (ii) SiO2 doped with 10 mol% phosphoric acid (H3PO 4-SiO2), (iii) Montmorillonite K10 clay (K10), (iv) acid-washed K10 clay (acid-clay), (v) K10 doped with one equivalent (with respect to substrate) of tosic acid (TsOH-K10) and (vi) cetylpyridinium bromide (CPB) (5 mol%) as the PTC. The reactions were carried out at room temperature (rt), at 60-70°C (oven) or under microwave irradiation (MWI).