131475-13-3Relevant academic research and scientific papers
Thermochemistry of substituted pyrroles
Berezin, M. V.,Semeikin, A. S.,V'yugin, A. I.,Krestov, G. A.
, p. 449 - 453 (1993)
The heats of solution of a series of substituted pyrroles in benzene, carbon tetrachloride, chloroform, DMF, and pyridine were measured by a calorimetric method at 298.15 K.The influence of substituents in the pyrrole molecule on the energy parameters of solvation by organic solvents is discussed.
Congeners of Pyrromethene-567 Dye: Perspectives from Synthesis, Photophysics, Photostability, Laser, and TD-DFT Theory
Thorat, Kishor G.,Kamble, Priyadarshani,Mallah, Ramnath,Ray, Alok K.,Sekar, Nagaiyan
, p. 6152 - 6164 (2015/06/30)
In an attempt to develop photostable and efficient BODIPY (PM) dyes for use in liquid dye lasers, three new congeners of widely used laser dye, PM567, were synthesized and their photophysical properties in various organic solvents, laser performances, and
Novel pyrromethene dyes with N-ethyl carbazole at the meso position: a comprehensive photophysical, lasing, photostability and TD-DFT study
Thorat, Kishor G.,Kamble, Priyadarshani,Ray, Alok K.,Sekar, Nagaiyan
, p. 17221 - 17236 (2015/07/02)
Two novel BODIPY (pyrromethene, PM) dyes containing N-ethyl carbazole at the meso position are synthesized and their photophysical properties in different solvents and the photochemical stabilities and laser performances in n-heptane are investigated. The n-heptane solution of the dyes was used as a gain medium in a constructed narrow band dye laser, pumped by a Q-switched (10 Hz) frequency-doubled (532 nm) Nd:YAG laser and the results gave enhanced photo stabilities and similar peak efficiencies of the synthesized dyes as compared to parent dye PM567. When substituted at the meso position with N-alkyl carbazole, photostability is found to be increased in comparison to PM567, and also when substituted at 2- and 6-positions with a benzyl group instead of an ethyl group along with N-ethyl carbazole at the meso position, the photo stability is further increased in n-heptane. A comprehensive study on structural, photophysical and electronic properties of dyes by means of DFT and TD-DFT in the solvents of various polarities has revealed remarkable characteristics of the BODIPY chromophore.
Regioselective pyrrole synthesis from asymmetric β-diketone and conversion to sterically hindered porphyrin
Fujii, Hiroshi,Yoshimura, Tetsuhiko,Kamada, Hitoshi
, p. 1427 - 1430 (2007/10/03)
The condensation of asymmetric β-diketones with α-oximinoacetoacetate esters affords pyrroles regioselectively. The mechanism of the regioselectivity is studied using 13C-NMR spectroscopy. Pyrrole having a neopentyl group at the 4-position is synthesized by the method, and further converted to a steric hindered porphyrin in good yield.
THE REACTION OF β-AMINOENONES WITH α-AMINO DERIVATIVES. SYNTHESIS OF 2-FUNCTIONALIZED PYRROLES
Alberola, Angel,Andres, Jose M.,Gonzalez, Alfonso,Pedrosa, Rafael,Vicente, Martina
, p. 1049 - 1058 (2007/10/02)
β-Aminoenones react with ethyl glycinate, α-aminoacetonitrile and α-aminoacetamide hydrochlorides leading to 2-fuctionalized pyrroles.Although the trans-amination is a high-yield process, the transformation of the intermediate, in both basic or thermally
