نتایج جستجو برای: aza cope rearrangement
تعداد نتایج: 64605 فیلتر نتایج به سال:
thermal rearrangement of 7,7-dichloro-[a,c]-dibenzo-[4,1,0]-bicycloheptane (1) to 5,6-dichloro-5hdibenzo-[a,c]-cycloheptene (2) was studied in the solid phase and in solvents with different polarities. thefirst-order constants at various temperatures for the rearrangement process were evaluated from theabsorption time data. the activation parameters for this rearrangement were obtained from the...
Background and aim: Lung cancer is one of the most leading causes of cancer death in males and females and the second leading cause of cancer death. Epigenetic alterations, including DNA hypermethylation, histone deacetylation, and miRNAs lead to the silencing of tumor suppressor genes (TSGs) resulting in tumorigenesis. This change has been reported in various cancers. The activity of DNA meth...
Background and Aim: Ulcerative Colitis is an idiopathic inflammatory bowel disease that is common in adults. Although corticosteroids are the most effective preservative treatment for Ulcerative Colitis. However, due to the dependence of these drugs and their serious complications, the use of an immunosuppressive drug or surgery should be taken seriously. Thus the aim of the study was the evalu...
The rearrangements of 1,5-hexadiene-3-oxide and 3-methyl-1,5-hexadiene-3-oxide have been studied in the gas phase, using both Fourier transform mass spectrometry (FTMS) and the flowing afterglow (FA) technique. Gas-phase studies of ionic rearrangements can be limited by analysis techniques such as collision-induced dissociation, which have the potential of driving the rearrangement prior to fra...
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