178946-89-9Relevant academic research and scientific papers
A convenient method of synthesis of bisindolylmethanes: Indium trichloride catalyzed reactions of indole with aldehydes and Schiff's bases
Babu, Govindarajulu,Sridhar, Nimmagadda,Perumal, Paramasivan T.
, p. 1609 - 1614 (2000)
Anhydrous indium trichloride (InCl3) is found to catalyze the electrophilic substitution reaction of indole with aromatic aldehydes and Schiff's bases which resulted in an efficient synthesis of bis- indolylmethanes in good to excellent yield.
Potassium hydrogen sulfate-catalyzed reactions of indoles: A mild, expedient synthesis of bis-indolylmethanes
Nagarajan, Rajagopal,Perumal, Paramasivan T.
, p. 288 - 289 (2004)
Biologically important bis-indolylmethanes and their derivatives were prepared in good yields by the electrophilic substitution of indole with aldehydes catalyzed by potassium hydrogen sulfate.
Preparation of bisindolylalkanes from N-tert-butanesulfinyl aldimines
Ke, Bowen,Qin, Yong,He, Qinfei,Huang, Zhiyan,Wang, Fengpeng
, p. 1751 - 1753 (2005)
A series of bisindolylalkanes were synthesized by nucleophilic addition reactions of indole with N-tert-butanesulfinyl aldimines in good to excellent yields catalyzed by either iodine, potassium hydrogen sulfate and amberlyst.
Enantioselective Friedel-Crafts reaction of indoles with carbonyl compounds catalyzed by bifunctional cinchona alkaloids
Li, Hongming,Wang, Yong-Qiang,Deng, Li
, p. 4063 - 4065 (2006)
In this communication, we report an efficient asymmetric Friedel-Crafts reaction that, unprecedently, is applicable to a wide range of both indoles and carbonyls. The use of a readily accessible catalyst in combination with a high enantioselectivity that is insensitive to reaction concentration, temperature, air, and moisture should allow this reaction to provide useful enantioselective access to new chiral indole derivatives.
Dy(OTf)3 in ionic liquid: An efficient catalytic system for reactions of indole with aldehydes/ketones or imines
Mi, Xueling,Luo, Sanzhong,He, Jiaqi,Cheng, Jin-Pei
, p. 4567 - 4570 (2004)
Dy(OTf)3 immobilized in ionic liquids was found to be an efficient catalytic system for the reactions of indole with aldehydes/ketones or imines. Enhanced activity was observed. The use of ionic liquids as the reaction media allows facile separ
A new approach for the synthesis of bisindoles through agOTf as catalyst
Beltr, Jorge,Gimeno, M. Concepcin,Herrera, Raquel P.
, p. 2206 - 2214 (2014)
A novel approach for the catalyzed formation of bisindolylmethane derivatives (BIMs) is described. This methodology is the unique example where AgOTf has been successfully used for the activation of aldehydes, giving easy access to a broad range of bisind
[Fe(III)(salophen)]Cl in Molten Tetrabutylammonium Bromide as a New Homogeneous Catalytic System for the Electrophilic Reaction of Indole with Carbonyl Compounds
Saeidnia, Samira,Sheikhshoaie, Iran
, p. 601 - 604 (2010)
[Fe(III)(salophen)]Cl in molten tetrabutylammonium bromide was used as a cost effective and efficient catalytic system for the electrophilic reaction of indole with carbonyl compounds. The remarkable features of this new procedure are high conversions, sh
Efficient Synthesis of Bis(indolyl)methanes Catalyzed by Lewis Acids in Ionic Liquids
Ji, Shun-Jun,Zhou, Min-Feng,Gu, Da-Gong,Wang, Shun-Yi,Loh, Teck-Peng
, p. 2077 - 2079 (2003)
Efficient electrophilic substitution reactions of indoles with various aldehydes proceed smoothly in ionic liquids using Lewis acids, In(OTf) 3, YbCl3, InCl3, BiCl3, and ZnCl2, to afford the correspon
A simple, efficient and green procedure for the synthesis of bis-indolyl methanes in 1,1,1,3,3,3-hexafluoro-2-propanol
Khaksar, Samad,Talesh, Saeed Mohammadzadeh
, p. 87 - 90 (2012)
A simple, inexpensive, environmentally friendly and efficient route for the synthesis of bis-indolyl methanes derivatives by the reaction of indole or N-methyl indole with aldehydes using hexafluoroisopropanol as a solvent is described. The solvent (HFIP)
Pentafluorophenylammonium triflate as an efficient, environmentally friendly and novel organocatalyst for synthesis of bis-indolyl methane derivatives
Khaksar, Samad,Ostad, Seyed Mojtaba
, p. 937 - 939 (2011)
A simple, inexpensive, environmentally friendly and efficient route for the synthesis of bis-indolyl methane derivatives by the reaction of indole or N-methyl indole with aldehydes using pentafluorophenylammonium triflate (PFPAT) as a catalyst is describe
