16358-39-7Relevant academic research and scientific papers
One-step synthesis of sulfonamides from N-tosylhydrazones
Tsai, Andy S.,Curto, John M.,Rocke, Benjamin N.,Dechert-Schmitt, Anne-Marie R.,Ingle, Gajendrasingh K.,Mascitti, Vincent
supporting information, p. 508 - 511 (2016/02/18)
The first described reaction between N-tosylhydrazone and SO2 is reported to provide alkyl sulfonamides in the presence of various amines. In this procedurally simple method, hydrazones of both unsaturated aldehydes and ketones proceed in moder
Palladium-Catalyzed α-Arylation of Methyl Sulfonamides with Aryl Chlorides
Zheng, Bing,Li, Minyan,Gao, Gui,He, Yuying,Walsh, Patrick J.
supporting information, p. 2156 - 2162 (2016/07/16)
A palladium-catalyzed α-arylation of sulfonamides with aryl chlorides is presented. A Buchwald-type pre-catalyst formed with Kwong’s indole-based ligand enabled this transformation to be compatible with a large variety of methyl sulfonamides and aryl chlorides in good to excellent yields. Importantly, under the optimized reaction conditions, only mono-arylated products were observed. This method has been applied to the efficient synthesis of sumatriptan, which is used to treat migraines. (Figure presented.) .
A useful Pd-catalyzed Negishi coupling approach to benzylic sulfonamide derivatives
Zhou, Gang,Ting, Pauline,Aslanian, Robert,Piwinski, John J.
supporting information; experimental part, p. 2517 - 2520 (2009/05/26)
(Chemical Equation Presented) A mild catalytic system to access diversely functionalized benzylic sulfonamides has been developed. Palladium-catalyzed α-arylation by Negishi cross-coupling of sulfonamide-stabilized anions and a wide range of aryl iodides, bromides, and triflates constitutes a practical strategy for the synthesis of various benzylic sulfonamides.
A novel cyclopropanation
Bostick, Tracy Matthew,Christie, Sean D.,Connolly, Terrence Joseph,Copp, Steven,Langler, Richard Francis,Reid, Darren Leonard,Zaworotko, Michael
, p. 243 - 247 (2007/10/03)
Reaction between benzaldehyde and methyl α-benzylsulfonylacetate furnishes methyl (E)-α-benzylsulfonyl-β-phenylacrylate as the exclusive Knoevenagel adduct. The related condensations between α-benzylsulfonylacetonitrile and paraformaldehyde furnish trans-1-benzylsulfonyl-2-phenylcyclopropane-1-carbonitrile in modest yields. These product structures are established by X-ray crystallographic analysis. Phenylsulfene is ruled out as an intermediate in the formation of the cyclopropane.
