403793-28-2Relevant academic research and scientific papers
Visible-light-driven electron donor-acceptor complex induced sulfonylation of diazonium salts with sulfinates
Cheng, Lan,Guo, Jianbo,Li, Yufei,Liang, Xin,Wang, Qingmin,Xia, Qing,Zhang, Pei,Zhang, Weihua
supporting information, p. 8865 - 8870 (2021/11/30)
This work reports an efficient sulfonylation reaction enabled by a visible-light-induced radical coupling reaction between phenyl/heterocyclic diazonium salts and sulfinates. Mechanistic experiments disclosed the formation of a versatile electron donor-acceptor (EDA) complex. This transformation is characterized by an easy operational procedure under mild conditions which avoids transition metals, ligands, catalysts, and oxidants.
Multicomponent Reductive Cross-Coupling of an Inorganic Sulfur Dioxide Surrogate: Straightforward Construction of Diversely Functionalized Sulfones
Meng, Yingying,Wang, Ming,Jiang, Xuefeng
supporting information, p. 1346 - 1353 (2019/12/11)
Conventionally, sulfones are prepared by oxidation of sulfides with strong oxidants. Now, a multicomponent reductive cross-coupling involving an inorganic salt (sodium metabisulfite) for the straightforward construction of sulfones is disclosed. Both intramolecular and intermolecular reductive cross-couplings were comprehensively explored, and diverse sulfones were accessible from the corresponding alkyl and aryl halides. Intramolecular cyclic sulfones were systematically obtained from five- to twelve-membered rings. Naturally occurring aliphatic systems, such as steroids, saccharides, and amino acids, were highly compatible with the SO2-insertion reductive cross-coupling. Four clinically applied drug molecules, which include multiple heteroatoms and functional groups with active hydrogens, were successfully prepared via a late-stage SO2 insertion. Mechanistic studies show that alkyl radicals and sulfonyl radicals were both involved as intermediates in this transformation.
Aryl alkyl sulfone compound and reducing coupling method for constructing sulfone compounds
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Paragraph 0092-0096, (2019/12/25)
The invention discloses an aryl alkyl sulfone compound shown as a formula (1) and a synthetic method thereof. The aryl alkyl sulfone compound is prepared by taking an aromatic iodide, an inorganic sulfur reagent and an alkyl bromide as reaction raw materials to carry out reacting in a solvent under action of alkali, a catalyst, a ligand, a reducing agent and an additive. According to the invention, an inorganic sulfur reagent is used as a sulfur source to construct the aryl alkyl sulfone compound in one step under catalysis and reduction conditions, so that the defect in synthesizing the arylalkyl sulfone compound by conventional oxidation of thioether is avoided. The aryl alkyl sulfone compound developed by the invention can be used for synthesizing aryl alkyl sulfone medicines.
Application of a novel 1,3-diol with a benzyl backbone as chiral ligand for asymmetric oxidation of sulfides to sulfoxides
Gogoi, Paramartha,Kotipalli, Trimurthulu,Indukuri, Kiran,Bondalapati, Somasekhar,Saha, Pipas,Saikia, Anil K.
supporting information; experimental part, p. 2726 - 2729 (2012/07/17)
A chiral 1,3-diol with a benzyl backbone has been used for the asymmetric oxidation of sulfides to sulfoxides. Moderate to good yields and enantioselectivity (upto 87% ee) have been observed.
NOVEL COMPOUNDS USEFUL FOR THE TREATMENT OF DEGENERATIVE AND INFLAMMATORY DISEASES
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Page/Page column 65, (2010/04/03)
[1,2,4]Triazolo[1,5-a]pyridine compounds are disclosed that have a formula represented by the following: (I) These compound may be prepared as a pharmaceutical composition, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, diseases involving cartilage degradation, bone and/or joint degradation, for example osteoarthritis; and/or conditions involving inflammation or immune responses, such as Crohn's disease, rheumatoid arthritis, psoriasis, allergic airways disease (e.g. asthma, rhinitis), juvenile idiopathic arthritis, colitis, inflammatory bowel diseases, endotoxin-driven disease states (e.g. complications after bypass surgery or chronic endotoxin states contributing to e.g. chronic cardiac failure), diseases involving impairment of cartilage turnover (e.g. diseases involving the anabolic stimulation of chondrocytes), congenital cartilage malformations, diseases associated with hypersecretion of IL6 and transplantation rejection (e.g. organ transplant rejection) and proliferative diseases.
Imidazolo-5-YL-2anilino-pyrimidines as agents for the inhibition of the cell proliffration
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Page/Page column 37, (2010/02/05)
Compounds of the formula (I): wherein R1, R2, R3, R4, R5, R6, p, q, and n are as defined within and a pharmaceutically acceptable salts and in vivo hydrolysable esters are described. Also described are processes for their preparation and their use as medicaments, particularly medicaments for producing a cell cycle inhibitory (anti-cell-proliferation) effect in a warm-blooded animal, such as man.
DERIVATIVES OF 4- (IMIDAZOL-5-YL)-2-(4-SULFOANILINO) PYRIMIDINE WITH CDK INHIBITORY ACTIVITY
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Page/Page column 67, (2008/06/13)
Compounds of the formula (I): wherein R1, R2, R3, R4, R5 and p are as defined within and a pharmaceutically acceptable salts and in vivo hydrolysable esters are described. Also described are processes for their preparation and their use as medicaments, particularly medicaments for producing a cell cycle inhibitory (anti-cell-proliferation) effect in a warm-blooded animal, such as man.
