methimazole and 2-mercaptothiazoline

methimazole has been researched along with 2-mercaptothiazoline* in 2 studies

Other Studies

2 other study(ies) available for methimazole and 2-mercaptothiazoline

Article	Year
Radical-scavenging activity of the reaction products of isoeugenol with thiol, thiophenol, mercaptothiazoline or mercaptomethylimidazole using the induction period method. Molecules (Basel, Switzerland), 2007, Aug-13, Volume: 12, Issue:8 The reaction products in the presence of Lewis acid of isoeugenol (1) with ethanethiol, thiophenol, 2-mercaptothiazoline or 2-mercapto-1-methylimidazole (ISO-S1-ISO-S-4) were obtained. The radical-scavenging activity of these compounds was investigated using the induction period method for polymerization of methyl methacrylate (MMA) initiated by thermal decomposition of 2,2'-azobisisobutyronitrile (AIBN) and benzoyl peroxide (BPO) and monitored by differential scanning calorimetry (DSC). For BPO, the stoichiometric factor (number of free radicals trapped by one mole of antioxidant moiety, n) declined in the order isoeugenol (1.8) > ISO-S-1 (1.6) > ISO-S-2 (1.2) > ISOS- 3 (0.9) > ISO-S-4 (0.3), whereas for AIBN, their n values were about 1, except for ISOS- 3 (0.6). The ratio of the rate constant of inhibition to that of propagation (k(inh)/k(p)) for BPO declined in the order ISO-S-4 (56) > ISO-S-3 (15) > ISO-S-2 (11) >ISO-S-1 (9) > isoeugenol (8). Similarly, for AIBN the k(inh)/k(p) of the reaction products (33-57) was greater than that of isoeugenol (31). The reaction products of isoeugenol with a SH group showed greater inhibition rate constants (kinh) than the parent compound isoeugenol. Topics: Calorimetry, Differential Scanning; Eugenol; Free Radical Scavengers; Imidazoles; Methylmethacrylate; Phenols; Sulfhydryl Compounds; Thiazolidines	2007
Polarization IR spectra of model crystals containing cyclic N-H...S bonded dimers: 2-mercaptothiazoline and 2-mercapto-1-methylimidazole. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2002, Jan-15, Volume: 58, Issue:2 This paper deals with experimental studies on the polarization IR spectra of hydrogen bonds in 2-mercaptothiazoline and 2-mercapto-1-methylimidazole crystals. The crystal structure of 2-mercaptothiazoline was determined by X-ray diffraction. The polarization spectra of the two compounds were measured in the frequency ranges of the V(N-H) and V(N-D) bands at 77 and 298 K. The spectra were attributed to cyclic N-H...S hydrogen-bond dimers, which are present as structural units in the lattices. Variation of the Davydov-splitting energy magnitude from sample to sample suggests statistical disorder in the crystals. The influence of the electronic properties of the associating small-ring molecules on the spectral properties of the hydrogen bonds is also discussed. Topics: Hydrogen Bonding; Imidazoles; Spectrophotometry, Infrared; Spectrum Analysis, Raman; Thiazoles; Thiazolidines	2002

Article

Year

Radical-scavenging activity of the reaction products of isoeugenol with thiol, thiophenol, mercaptothiazoline or mercaptomethylimidazole using the induction period method.

Molecules (Basel, Switzerland), 2007, Aug-13, Volume: 12, Issue:8

The reaction products in the presence of Lewis acid of isoeugenol (1) with ethanethiol, thiophenol, 2-mercaptothiazoline or 2-mercapto-1-methylimidazole (ISO-S1-ISO-S-4) were obtained. The radical-scavenging activity of these compounds was investigated using the induction period method for polymerization of methyl methacrylate (MMA) initiated by thermal decomposition of 2,2'-azobisisobutyronitrile (AIBN) and benzoyl peroxide (BPO) and monitored by differential scanning calorimetry (DSC). For BPO, the stoichiometric factor (number of free radicals trapped by one mole of antioxidant moiety, n) declined in the order isoeugenol (1.8) > ISO-S-1 (1.6) > ISO-S-2 (1.2) > ISOS- 3 (0.9) > ISO-S-4 (0.3), whereas for AIBN, their n values were about 1, except for ISOS- 3 (0.6). The ratio of the rate constant of inhibition to that of propagation (k(inh)/k(p)) for BPO declined in the order ISO-S-4 (56) > ISO-S-3 (15) > ISO-S-2 (11) >ISO-S-1 (9) > isoeugenol (8). Similarly, for AIBN the k(inh)/k(p) of the reaction products (33-57) was greater than that of isoeugenol (31). The reaction products of isoeugenol with a SH group showed greater inhibition rate constants (kinh) than the parent compound isoeugenol.

Topics: Calorimetry, Differential Scanning; Eugenol; Free Radical Scavengers; Imidazoles; Methylmethacrylate; Phenols; Sulfhydryl Compounds; Thiazolidines

2007

Polarization IR spectra of model crystals containing cyclic N-H...S bonded dimers: 2-mercaptothiazoline and 2-mercapto-1-methylimidazole.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2002, Jan-15, Volume: 58, Issue:2

This paper deals with experimental studies on the polarization IR spectra of hydrogen bonds in 2-mercaptothiazoline and 2-mercapto-1-methylimidazole crystals. The crystal structure of 2-mercaptothiazoline was determined by X-ray diffraction. The polarization spectra of the two compounds were measured in the frequency ranges of the V(N-H) and V(N-D) bands at 77 and 298 K. The spectra were attributed to cyclic N-H...S hydrogen-bond dimers, which are present as structural units in the lattices. Variation of the Davydov-splitting energy magnitude from sample to sample suggests statistical disorder in the crystals. The influence of the electronic properties of the associating small-ring molecules on the spectral properties of the hydrogen bonds is also discussed.

Topics: Hydrogen Bonding; Imidazoles; Spectrophotometry, Infrared; Spectrum Analysis, Raman; Thiazoles; Thiazolidines

2002