256659-29-7Relevant academic research and scientific papers
Syntheses of calix[4]pyrroles by amberlyst-15 catalyzed cyclocondensations of pyrrole with selected ketones
Chauhan, Shive Murat Singh,Garg, Bhaskar,Bisht, Tanuja
, p. 2458 - 2466 (2007)
A facile and efficient protocol is reported for the synthesis of calix[4]pyrroles and N-confused calix[4]pyrroles in moderate to excellent yields by reaction of dialkyl or cycloalkyl ketones with pyrrole catalyzed by reusable Amberlyst-15 under eco-friendly conditions.
Efficient ZnCl2 assisted synthesis of calix[4]pyrroles catalysed by Br?nsted acidic ionic liquids
Rawat, Amit Kumar,Chauhan
, p. 6969 - 6971 (2014)
A facile and efficient protocol is reported for the synthesis of calix[4]pyrroles and N-confused calix[4]pyrroles in moderate to excellent yields by one-pot condensation of ketones and pyrrole in the presence of catalytic amount of nontoxic acidic ionic liquids. In this reaction the products were obtained in short reaction time with selectivity of regular calix[4]pyrroles.
Synthesis, structure, anion binding, and sensing by calix[4]pyrrole isomers
Nishiyabu, Ryuhei,Palacios, Manuel A.,Dehaen, Wim,Anzenbacher Jr., Pavel
, p. 11496 - 11504 (2006)
The synthesis, structure, and anion binding properties of chromogenic octamethylcalix[4]pyrroles (OMCPs) and their N-confused octamethylcalix[4] pyrrole isomers (NC-OMCPs) containing an inverted pyrrole ring connected via α′- and β-positions are described
A catalytic and solvent-free approach for the synthesis of diverse functionalized dipyrromethanes (DPMs) and calix[4]pyrroles (C4Ps)
Rather, Ishfaq Ahmad,Ali, Rashid
, p. 5849 - 5855 (2021/08/23)
Needless to say, the development of green and sustainable reaction media instead of using volatile organic solvents as well as corrosive and/or expensive catalysts in the new millennium is continuously attracting great attention from the scientific commun
One-pot synthesis of asymmetric annulated bis(pyrrole)s
Smithen, Deborah A.,Cameron, T. Stanley,Thompson, Alison
supporting information; experimental part, p. 5846 - 5849 (2012/01/13)
Condensation of activated functionalized pyrroles with acetone results in asymmetric bis(pyrrole)s, formed via ring annulation. The methodology is somewhat general and can be applied to a variety of ketones, as well as to a range of pyrrolic substrates that do not bear electron-withdrawing groups directly adjacent to the pyrrole ring.
N-confused calix[4]pyrroles
Depraetere, Stefaan,Smet, Mario,Dehaen, Wim
, p. 3359 - 3361 (2007/10/03)
Next to the 'normal' calix[4]pyrrole 1, the N-confused calix[4]pyrrole 2 is formed in substantial amounts (up to 22% yield) as side product in the acid-catalyzed condensation reaction of ketones and pyrrole. In some cases, doubly N-confused calix[4]pyrroles are also formed.
