23705-37-5Relevant academic research and scientific papers
Ultrasound-assisted one-pot three-component synthesis of new isoxazolines bearing sulfonamides and their evaluation against hematological malignancies
Talha, Aicha,Favreau, Cécile,Bourgoin, Maxence,Robert, Guillaume,Auberger, Patrick,EL Ammari, Lahcen,Saadi, Mohamed,Benhida, Rachid,Martin, Anthony R.,Bougrin, Khalid
, (2021/09/16)
In the present study, following a one-pot two-step protocol, we have synthesized novel sulfonamides-isoxazolines hybrids (3a-r) via a highly regioselective 1,3-dipolar cycloaddition. The present methodology capitalized on trichloroisocyanuric acid (TCCA) as a safe and ecological oxidant and chlorinating agent for the in-situ conversion of aldehydes to nitrile oxides in the presence of hydroxylamine hydrochloride, under ultrasound activation. These nitrile oxides could be engaged in 1,3-dipolar cycloaddition reactions with various alkene to afford the targeted sulfonamides-isoxazolines hybrids (3a-r). The latter were assessed for their antineoplastic activity against model leukemia cell lines (Chronic Myeloid Leukemia, K562 and Promyelocytic Leukemia, HL-60).
Synthesis of N-substituted sulfonamides containing perhalopyridine moiety as bio-active candidates
Hosseini, Raziyeh,Mohammadiannejad, Kazem,Ranjbar-Karimi, Reza
, (2020/03/18)
A series of new halogenated aryl sulfonamides, as bio-active candidates, was synthesized from the reaction of the corresponding aryl sulfonamides with pentafluoro- and pentachloropyridines. Surprisingly, unlike aryl sulfonamides, the reaction of sulfamides with pentafluoro- and pentachloropyridines gave unexpected bis-perfluoro(chloro)pyridin-4-ylamines.
Palladium-Catalyzed Regio- and Chemoselective Reactions of 2-Bromobenzyl Bromides: Expanding the Scope for the Synthesis of Biaryls Fused to a Seven-Membered Sultam
Laha, Joydev K.,Sharma, Shubhra,Dayal, Neetu
, p. 7885 - 7891 (2015/12/24)
Speedy access to biaryls fused to seven-membered sultams was achieved by starting from readily accessible N-alkylbenzenesulfonamides and 2-bromobenzyl bromides. The protocol features a domino reaction and proceeds through an N-benzylation followed by an intramolecular direct C-H arylation that occurs ortho to the sulfonamide group. A palladium-catalyzed domino reaction of N-alkylbenzenesulfonamides and 2-bromobenzyl bromides gives biaryls fused to a seven-membered sultam. This approach employs readily accessible substrates and provides speedy access to fused-ring compounds.
Synthesis of nitromethyl-substituted oxindole derivatives via a desulfonylation cascade
Niu, Ben,Xie, Ping,Bian, Zhaogang,Zhao, Wannian,Zhang, Min,Zhou, Yang,Feng, Lei,Pittman, Charles U.,Zhou, Aihua
supporting information, p. 635 - 638 (2015/03/14)
A cascade reaction giving nitromethyl-substituted oxindole derivatives was developed. The reaction used NaNO2 as the nitro source and potassium peroxydisulfate as an oxidant. This reaction proceeded via a radical mechanism involving substitution-desulfonlylation-cyclization steps in one pot and afforded good yields under mild conditions without using toxic metal catalysts. The resultant nitromethyl-substituted oxindole derivatives are convenient and valuable structures for different derivative syntheses.
HETEROCYCLIC DERIVATIVE HAVING INHIBITORY ACTIVITY ON TYPE-I 11 -HYDROXYSTEROID DEHYDROGENASE
-
Page/Page column 131, (2010/08/07)
Disclosed is a compound which is useful as an 11β-hydroxysteroid dehydrogenase type 1 inhibitor. A compound represented by the formula: its pharmaceutically acceptable salt, or a solvate thereof, wherein X is O or S, a broken line and a wavy line represent the presence or the absence of a bond, (i) when a broken line represents the presence of a bond, a wavy line represents the absence of a bond, R2 and R3 are each independently hydrogen, halogen, cyano, hydroxy, carboxy, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl or the like, (ii) when a broken line represents the absence of a bond, a wavy line represents the presence of a bond, R1 and R4 are each independently hydrogen, halogen or the like, R2 and R3 are each independently hydrogen, halogen, cyano, hydroxy, carboxy, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl or the like, and R5 and R6 are each independently hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl or the like.
Platinum oxide catalyzed silylation of aryl halides with triethylsilane: An efficient synthetic route to functionalized aryltriethylsilanes
Hamze, Abdallah,Provot, Olivier,Alami, Mouad,Brion, Jean-Daniel
, p. 931 - 934 (2007/10/03)
The first platinum-catalyzed selective silylation of aryl halides including aryl iodides and bromides having an electron-withdrawing group is described. The reaction takes place rapidly in NMP with triethylsilane as a silicon source and sodium acetate to provide functionalized aryltriethylsilanes in moderate to good yields. Heteroaromatic halides also were found to be readily silylated with triethylsilane. The procedure is chemoselective and tolerates a wide variety of functional groups.
