33871-62-4Relevant academic research and scientific papers
Intramolecular electron transfer and solvation
Simon, John D.,Su, Shyh-Gang
, p. 7016 - 7023 (1987)
The intramolecular charge transfer reaction and solvation dynamics of 4,4'- dimethylaminophenyl sulphone in alcohols are measured using picosecond time-resolved emission spectroscopy.The results are compared to theoretical models that treat the solvent as
Dual Fluorescence of 4,4'-Dimethylamino- and 4,4'-Diaminophenyl Sulfone. Consequences of d-Orbital Participation in the Intramolecular Charge Separation Process
Rettig, Wolfgang,Chandross, Edwin A.
, p. 5617 - 5624 (1985)
4,4'-Dimethylaminophenyl sulfone (DMAPS) and 4,4'-diaminophenyl (APS) show multiple fluorescence in polar solvents without the strong diminution of fluorescence efficiency found for similar systems.Based on numerous similarities with the dual fluorescence
Alkyl formates as reagents for reductive amination of carbonyl compounds
Afanasyev, Oleg I.,Cherkashchenko, Ilia,Kuznetsov, Anton,Kliuev, Fedor,Semenov, Sergey,Chusova, Olga,Denisov, Gleb,Chusov, Denis
, p. 112 - 113 (2020/03/03)
Alkyl formates in the presence of basic additives can serve as a reagent in the direct reductive amination of carbonyl compounds. The developed procedure can be applied to various aldehydes and ketones with electron donating and electron withdrawing groups.
Palladium-catalyzed one-step synthesis of symmetrical diaryl sulfones from aryl halides and a sulfur dioxide surrogate
Tanaka, Hiromichi,Konishi, Hideyuki,Manabe, Kei
supporting information, p. 760 - 763 (2019/08/02)
A convenient method for the one-step synthesis of symmetrical diaryl sulfones from aryl halides has been developed. A keystone of the method is the use of K2S2O5, which can be easily and safely handled, as a sulfur dioxide surrogate. The palladium catalyst bearing P(t-Bu)3 as a ligand enables formation of the desired sulfones without significant formation of byproducts.
On the dimensionality of the reaction coordinate of intramolecular charge-transfer reactions in protic solvents
Simon, John D.,Doolen, Robert
, p. 4861 - 4870 (2007/10/02)
Steady-state and time-resolved emission spectroscopies are used to examine the kinetics of intramolecular charge transfer in a series of bis[(N,N-dialkylamino)phenyl]sulfones in polar solvents. The experimental data are compared to theoretical models to d
Effect of Viscosity and Rotor Size on the Dynamics of Twisted Intramolecular Charge Transfer
Simon, John D.,Su, Shyh-Gang
, p. 3656 - 3660 (2007/10/02)
Picosecond emission spectroscopy is used to examine the kinetics of twisted intramolecular charge transfer in a series of symmetric bis sulfones, DRAPS (R= methyl, propyl, and butyl), in alcohol solutions.Within a given solvent,
Studies on 2,3,N,N'-substituted 4,4'-diaminodiphenylsulfones as potential antimalarial agents
Saxena,Saxena,Raina,Chandra,Sen,Anand,Seydel,Wiese
, p. 1081 - 1084 (2007/10/02)
A series of new 4,4'-diaminodiphenylsulfones substituted at 2 and 3 position and also at primary amino group of the phenyl rings have been synthesised and evaluated for their antimalarial activity against Plasmodium berghei infection in mice. Some of these compounds were active and showed complete inhibition of parasitaemia which included 7a1-7a4, 7b3, 7b4 and 16a at 1 mg/kg i.p. for 4 days and 16a, at 0.3 mg/kg for 4 days. Some compounds tested for their synthetase inhibitory action in cell-free system isolated from P. berghei (7b1, 7b2 and 8b2) were found to be more active than diaminodiphenylsulphone. The difference in order of activity between these in vivo and in vitro tests may be due to differences in their pharmacokinetic properties.
