Reactions of a series of cobalt dinitrosyl/alkene addition products with conjugate acceptors in the presence of Sc[(OTf).sub.3]/LHMDS formed two new carbon-carbon bonds at the a-carbon positions on the nitrosyl
groups of the substrate, leading to unusual tri-and tetracycles, retrocycloaddition of which in the presence of norbomadiene produced functionalized tetrasubstituted bicyclic alkenes.
We have previously evaluated Porphyrins in the context of photodynamic therapy (PDT) since they strongly absorb visible light in the blue region.14 In addition, we have also shown that these compounds serve as inhibitors for Acetylcholinesterase enzyme in erythrocytes and nerve tissue.15,16 This study was conducted to investigate the three Porphyrin derivatives: Tetraphenylporphinesulfonate (TPPS), 5,10,15,20-Tetrakis (4sulfonatophenyl) porphyrinato Iron(III) Chloride (FeTPPS) and 5,10,15,20-Tetrakis (4sulfonatophenyl) porphyrinato Iron(III) nitrosyl
Chloride (FeNOTPPS), as candidate compounds for increasing the Na+, K+-ATPase activity in erythrocytes.
(2008) [H.sub.2]S and HS-donor NaHS releases nitric oxide from nitrosothiols, metal nitrosyl
complex, brain homogenate and murine L1210 leukaemia cells.
The liquor was then added in portions during 30 min to a cold solution of nitrosyl
sulphuric acid (prepared from sodium nitrite (0.15 g) and concentrated sulphuric acid (3 mL) at 50[degrees]C).
A final chapter looks at the oxidative ion-radical mechanisms in polymer interactions with diamagnetic nitrogen dioxide dimers in the form of nitrosyl
transfer to carbon, oxygen, nitrogen, and sulfur.
NO is known to be released from nitrosyl
hemoglobin or nitrosoglutathione by light irradiation (13).
It is stored as a nitrosyl
ligand in an iron(II) complex to be released as necessary.
By absorbing the nitrogen oxide gas, the compound forms an iron nitrosyl
complex that can be converted into ammonia, thus liberating the iron catalyst for further use.
After separation on a megabore capillary column, the N-nitrosamines are pyrolyzed at 500 [degrees] C to form nitrosyl
radicals (equation 1); this temperature is too low (1) [Mathematical Expression Omitted] to pyrolize nitrosyl
radicals from C-nitrosamines.
Compared to iron-based nitrosyl
complexes, Ru nitrosyls
are promising candidates as potential NO-donating agents for targeted delivery of NO to physiological targets due to their inherent stability and modest photosensitivity [16-21].
The EPR parameters of a set of Tc(II) nitrosyl
complexes were reported in the previous studies in the literature .