Formation of Thioaldehyde Intermediates by Thermolysis of Sulfoxides Bearing Some Heteroaromatics
摘要:
Thermal reactions of phenacyl sulfoxide bearing heterocycles, such as a 2-benzothiazolyl or N-oxypyridyl group, in the presence of 2,3-dimethyl-1,3-butadiene afforded 6-benzoyl-5,6-dihydro-3,4-dimethyl-2H-thiapyran in good yield. This product is considered to be formed by the Diels-Alder reaction of a diene with thioaldehyde formed initially by the decomposition of sulfoxides.
Zinc Oxide Catalyzed Solvent-Free Mechanochemical Route for C-S Bond Construction: A Sustainable Process
作者:P. Md. Khaja Mohinuddin、N. C. Gangi Reddy
DOI:10.1002/ejoc.201601425
日期:2017.2.24
Zinc oxide-catalyzed solvent-freemechanochemical route has been developed for the rapid construction of C-S bond using a variety of thiols and phenacyl/benzyl/alkyl bromides via a nucleophilic substitution (SN2 mechanism). Notable advantages of this method include broad substrate scope, cleaner reaction profile, safe, scalable, high yields at ambient conditions and reuse of catalyst. Further, the
We have developed a method for highly regioselective S–H bond insertion reactions of various diazo compounds and cyclic thioamide derivatives at room temperature. These reactions provide straightforwardaccess to alkylated benzimidazoles, benzothiazoles, and benzoxazoles. This mild method uses readily available TfOH as a catalyst and features a broad substrate scope, good functional group tolerance
One pot synthesis of <scp>2‐substituted</scp> thiobenzoazoles containing <scp>α‐sulfenylated</scp> aromatic ketones under transition <scp>metal‐free</scp> conditions
作者:Xi Cheng、Xiao‐Hu Xu、Zhi‐Bing Dong
DOI:10.1002/jhet.4721
日期:2023.10
through cyclization, and the subsequent C-S bonding with 2-bromoacetophenones gave the desired 2-substituted thiobenzoazoles containing α-sulfenylated aromatic ketones smoothly. The method features transition metal-free, simple operation, mild conditions, short reaction time, and good yields, showing potential synthetic value for the synthesis of a variety of biological or pharmaceutically active compounds
Benzothiazole based sulfonamide scaffolds as active inhibitors of alpha-Amylase and alpha-glucosidase; synthesis, structure confirmation, In Silico molecular docking and ADME analysis
position of the ring, capable to interact through hydrogen bond with active site of the enzyme, is the contributing factor to the efficacy of the analog. Binding insight of the protein-ligand interaction of all the potent analogs was gained through molecular docking study. Furthermore, the drug likeness attributes of the potent derivatives were explored through ADME analysis.