Author
M. Bolourchian
Bio: M. Bolourchian is an academic researcher from Shiraz University. The author has contributed to research in topics: Barium permanganate & 2019-20 coronavirus outbreak. The author has an hindex of 1, co-authored 2 publications receiving 16 citations.
Papers
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TL;DR: Barium permanganate is an easily prepared, stable, and a versatile oxidation reagent as discussed by the authors, and it can be used to transform primary and secondary hydroxy compounds to their carbonyl derivatives.
16 citations
TL;DR: In Canada, Chinese residents with an optimistic attitude toward COVID-19 suffer less peritraumatic distress and insight into better mental health interventions for this vulnerable population is provided.
TL;DR: The COVID-19 pandemic has a significant mental effect on Chinese individuals, which may directly cause peritraumatic distress or indirectly cause mental disorders such as stress and anxiety.
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TL;DR: Zinc bismuthate is an easily prepared and stable compound and it could be used as an oxidant in organic solvents under aprotic or in the presence of a catalytic amount of a protic solvent as discussed by the authors.
Abstract: Zinc bismuthate is an easily prepared and a stable compound. It could be used as an oxidant in organic solvents under aprotic or in the presence of a catalytic amount of a protic solvent. Primary a...
55 citations
TL;DR: In this article, the authors used barium permanganate in refluxing acetonitrile to perform sulfide oxidation to their sulfoxides, which was performed with barium-peranganate.
25 citations
TL;DR: The enantiospecific total synthesis of the δ-lactonic marine natural product (+)-tanikolide, isolated from Lyngbya majuscula, was achieved using a [2,3]-Meisenheimer rearrangement as the key reaction because it was discovered that the allylic amine N-oxide could direct the m-CPBA double-bond epoxidation to the syn position.
Abstract: The enantiospecific total synthesis of the δ-lactonic marine natural product (+)-tanikolide (1), isolated from Lyngbya majuscula , was achieved using a [2,3]-Meisenheimer rearrangement as the key reaction. During this rearrangement, we discovered that the allylic amine N-oxide could direct the m-CPBA double-bond epoxidation to the syn position. The resulting syn product 8 underwent epoxide ring opening under the m-CBA conditions to give the five- and six-membered cyclic ether amine N-oxides, which we further treated with Zn and conc. HCl to obtain the reduced bisbenzyl tertiary amines 23 and 22, respectively. When 23 and 22 were treated with trichloroisocyanuric acid (TCCA) in dichloromethane, oxidation at the benzyl position occurred, forming iminium ions. These intermediates were trapped by intramolecular reaction with the hydroxyls, and the resulting intermediates were then oxidized or shifted to afford 25 and 24, respectively. The entire one-pot process involves N-debenzylation, N-chlorination, and hemiacetal oxidation. The amine N-oxide-directed epoxidation complements Davies' ammonium-directed epoxidation. Thus, TCCA N-debenzylation is described for the first time and might be a useful N-debenzylation technique.
23 citations
TL;DR: Tetrakis(pyridine)silver(II) peroxodisulfate oxidizes aromatic aldehydes to carboxylic acids, benzylic alcohols to carbonyl compounds, aromatic thiols, and allylaryl thioethers to arylsulfonic acids and benzyric carbon-hydrogen bonds to caronyl groups as discussed by the authors.
Abstract: Tetrakis(pyridine)silver(II) peroxodisulfate oxidizes aromatic aldehydes to carboxylic acids, benzylic alcohols to carbonyl compounds, aromatic thiols, and allylaryl thioethers to arylsulfonic acids and benzylic carbon–hydrogen bonds to carbonyl groups. α-Hydroxycarboxylic acids and phenylacetic acids are decarboxylated to produce carbonyl compounds. Dibenzyl ether and its sulfur analogue are converted to their corresponding ester and the thioester, respectively.
21 citations
TL;DR: In this article, different benzylic hydrocarbons are oxidized by tetrapyridinesilver(II) peroxydisulfate in refluxing acetonitrile to produce their corresponding carbonyl compounds in moderate to excellent yields.
16 citations