99840-54-7Relevant academic research and scientific papers
Design of neutral metallomesogens from 5,5-dimethyldipyrromethane: Metal ion mediated control of folding and hairpin structures
Ames, Kelly A.,Collinson, Simon R.,Blake, Alexander J.,Wilson, Claire,Love, Jason B.,Bruce, Duncan W.,Donnio, Bertrand,Guillon, Daniel,Schroeder, Martin
, p. 5056 - 5066 (2008)
New ligands derived from 5,5-dimethyldipyrromethane and their corresponding neutral complexes with ZnII and PdII are described. The ligands incorporate either a hexacatenar [H2(1n), n = 1, 10, 12, 14 and 16], te
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
1,2-Phenylene-Incorporated Smallest Expanded Calix[4]pyrrole via One-Step Synthesis of Tetrapyrrane: A Fluorescent Host for Fluoride Ion
Kumar, B. Sathish,Chandra, Brijesh,Jovan Jose,Panda, Pradeepta K.
supporting information, p. 10536 - 10543 (2021/08/20)
Synthesis of tetrapyrrane 8 from acetone and pyrrole via one-step condensation was achieved for the first time along with a much-improved yield of the tripyrrane 9. Diborylation of the tetrapyrrane and subsequent 1 + 1 cyclocoupling with 1,2-diiodobenzene following the Suzuki protocol generated novel o-phenylene incorporated macrocycle belonging to the smallest meso-expanded calix[4]pyrrole family. The latter macrocycle displays exclusive turn-on fluorescence sensing of fluoride ion upon complexation via a unique partial cone conformation supported by DFT analysis in acetonitrile solvent.
C-Bridged Bispyrrolidines and Bispiperidines as New Ligands
Stumpf, Tim-Daniel J.,Steinbach, Manfred,H?ltke, Magdalene,Heuger, Gerold,Grasemann, Franka,Fr?hlich, Roland,Schindler, Siegfried,G?ttlich, Richard
, p. 5538 - 5547 (2018/10/25)
The preparation of methylene-bridged C2-symmetric nitrogen-heterocycles as a new class of ligands is described, including methylene-bridged pyridines, quinolones, piperidines and pyrrolidines. These methylene-bridged aromatic systems are obtained via a microwave assisted Ziegler-type reaction. The separation of diastereomers and the application of the copper complexes of these ligands for cyclopropanation reactions proves the applicability of these new types of ligands.
Photoinduced Dynamics of Bis-dipyrrinato-palladium(II) and Porphodimethenato-palladium(II) Complexes: Governing Near Infrared Phosphorescence by Structural Restriction
Riese, Stefan,Holzapfel, Marco,Schmiedel, Alexander,Gert, Ingo,Schmidt, David,Würthner, Frank,Lambert, Christoph
supporting information, p. 12480 - 12488 (2018/10/25)
Although superficially similar, the bis-dipyrrinato-palladium(II) complex 1 and the bridged porphodimethenato-palladium(II) complex 2 possess dramatically different structures in the ground state (proved by X-ray structure analysis) and in the singlet and
Synthesis and Resolution of a Chiral Diamine: 2,2′-(Propane-2,2-diyl)dipyrrolidine
Kotthaus, Andreas F.,Ballaschk, Frederic,Stakaj, Vjoni,Mohr, Fabian,Kirsch, Stefan F.
, p. 3107 - 3111 (2017/07/12)
A short and practical synthesis of a new chiral dipyrrolidine is presented. The three-step route includes a hydrogenation and a resolution with mandelic acid, which easily affords large quantities of the title compound.
One-pot synthesis of pyrroles using a titanium-catalyzed multicomponent coupling procedure
Pasko, Cody M.,Dissanayake, Amila A.,Billow, Brennan S.,Odom, Aaron L.
, p. 1168 - 1176 (2016/02/16)
A simple one-pot procedure for the production of 2-carboxylpyrroles with 4-alkyl, 5-alkyl, 4-aryl, 4-aryl-5-alkyl, or 3,4-diaryl substitution patterns is presented. The procedure involves the titanium-catalyzed multicomponent coupling of alkynes, primary amines and isonitriles to give 1,3-diimines in situ; the multicomponent product is then treated with the ethyl ester of glycine hydrochloride to give the NH-pyrrole. The reaction can be carried out with the neutralized glycine ester or with the hydrochloride salt using DBU as a base. Yields of pyrrole based on starting alkyne varied from 25 to 65% over the one pot procedure, and in most cases only one regioisomer of the product is observed. Further, it is proposed that the regioselectivities of the reactions are a result of rate-determining ring closure after relatively fast transimination with glycine ethyl ester.
Dipyrromethane as a new organic reagent for the synthesis of gold nanoparticles: Preparation and application
Eshghi,Rahimizadeh,Attaran,Bakavoli
, p. 1151 - 1157 (2013/11/06)
Condensation reaction of several ketones with pyrrole in the presence of ferric hydrogen sulfate as a green homogenous acidic catalyst furnished the corresponding pure dipyrromethanes in good yields. Gold nanoparticles were produced through reduction of H
Synthesis, electrochemistry, and photophysics of a family of phlorin macrocycles that display cooperative fluoride binding
Pistner, Allen J.,Lutterman, Daniel A.,Ghidiu, Michael J.,Ma, Ying-Zhong,Rosenthal, Joel
supporting information, p. 6601 - 6607 (2013/06/05)
A homologous set of 5,5-dimethylphlorin macrocycles in which the identity of one aryl ring is systematically varied has been prepared. These derivatives contain ancillary pentafluorophenyl (3H(PhlF)), mesityl (3H(Phl Mes)), 2,6-bisme
Regioselective conversion of alkynes to 4-substituted and 3,4-disubstituted isoxazoles using titanium-catalyzed multicomponent coupling reactions
Dissanayake, Amila A.,Odom, Aaron L.
scheme or table, p. 807 - 812 (2012/01/31)
Conditions have been developed for the regioselective synthesis of 4-substituted isoxazoles from terminal alkynes and 3,4-disubstituted isoxazoles from internal alkynes. The methodology involves a one-pot titanium-catalyzed multicomponent coupling reactio
